免费在线工具箱Free Online Tools
快速、免费、无需注册,所有处理都在你的浏览器本地完成。Fast, free, no sign-up. Everything runs locally in your browser.
📝 文本工具Text Tools 全部 43 →All 43 →
🔢 字数统计Word & Character Counterword-counter 在线字数统计工具,统计中文字数、英文单词、字符数、段落和阅读时间。 Count words, characters, Chinese characters, paragraphs and reading time online.🔠 大小写转换Case Convertercase-converter 英文大小写在线转换:全大写、全小写、首字母大写、驼峰、下划线、短横线。 Convert text to UPPER, lower, Title, Sentence, camelCase, snake_case or kebab-case.🧹 删除重复行Remove Duplicate Linesremove-duplicate-lines 在线去除文本中的重复行,可忽略大小写和首尾空格,保留原有顺序。 Remove duplicate lines from text, optionally ignoring case and whitespace, keeping order.↕️ 文本行排序Sort Linessort-lines 在线对文本行进行排序:字母/拼音顺序、倒序、按长度、数字排序、随机打乱。 Sort lines alphabetically, in reverse, by length, numerically, or shuffle them.🆚 文本对比Text Diff Checkertext-diff 在线对比两段文本的差异,逐行高亮显示新增和删除内容。 Compare two texts and highlight added and removed lines.🔍 文本查找替换Find and Replace Textfind-replace 在线批量查找替换文本,支持正则表达式和忽略大小写。 Find and replace text online with optional regex and case-insensitive matching.🔗 URL Slug 生成器URL Slug Generatorslug-generator 将标题转换为 SEO 友好的 URL slug,去除特殊字符和重音。 Turn titles into clean, SEO-friendly URL slugs.📄 假文生成器Lorem Ipsum Generatorlorem-ipsum 在线生成 Lorem Ipsum 英文假文或中文占位文本,用于设计排版。 Generate Lorem Ipsum or Chinese placeholder text for mockups.🔁 文本反转Reverse Texttext-reverse 在线反转文本:倒序字符、倒序单词或倒序行,支持中文和 emoji。 Reverse text by characters, words or lines; supports Chinese and emoji.␣ 去除多余空格Remove Extra Spacesremove-extra-spaces 在线去除文本中多余的空格、制表符和每行首尾空白。 Remove extra spaces, tabs and leading/trailing whitespace from text.↩️ 去除换行Remove Line Breaksremove-line-breaks 在线删除文本中的换行符,把多行文字合并为一段,可保留段落。 Remove line breaks and join lines into one paragraph, optionally keeping paragraphs.🔢 添加行号Add Line Numbersadd-line-numbers 在线给每一行文本添加行号,可设置起始数字和分隔符。 Add line numbers to text with custom start number and separator.➕ 批量添加前缀后缀Add Prefix / Suffix to Linesadd-prefix-suffix 给每一行文本批量添加前缀和后缀,例如加引号、逗号或 HTML 标签。 Add a prefix and/or suffix to every line, e.g. quotes, commas or HTML tags.🧽 删除空行Remove Empty Linesremove-empty-lines 在线一键删除文本中的所有空行或只含空格的行。 Remove all empty or whitespace-only lines from text.📊 词频统计Word Frequency Counterword-frequency 统计文本中每个英文单词或中文字词出现的次数,按频率排序。 Count how often each word appears in text, sorted by frequency.🔤 字符频率统计Character Frequency Countercharacter-frequency 统计文本中每个字符出现的次数和占比,支持中文和 emoji。 Count occurrences of every character in text, including Chinese and emoji.🏷️ 去除 HTML 标签Strip HTML Tagsstrip-html-tags 在线去除 HTML 标签,只保留纯文本内容,可保留换行。 Strip HTML tags and get plain text, keeping line breaks.📧 提取邮箱地址Extract Email Addressesextract-emails 从任意文本中批量提取邮箱地址,自动去重。 Extract all email addresses from text, de-duplicated.🔗 提取网址链接Extract URLsextract-urls 从文本或 HTML 中提取所有 http/https 网址链接。 Extract all http/https URLs from text or HTML.🔟 提取数字Extract Numbersextract-numbers 从文本中提取所有数字(含小数和负数),并可计算总和。 Extract all numbers (incl. decimals/negatives) from text and sum them.🔁 文本重复生成Text Repeatertext-repeater 将文字重复 N 次,可选择换行、空格或自定义分隔符。 Repeat text N times with newline, space or custom separator.🙃 文字倒置Upside Down Textupside-down-text 把英文文字上下颠倒翻转,生成 ʇxǝʇ uʍop ǝpısdn 效果。 Flip text upside down: ʇxǝʇ uʍop ǝpısdn.✨ 花式字体生成器Fancy Text Generatorfancy-text 生成 𝐁𝐨𝐥𝐝、𝘐𝘵𝘢𝘭𝘪𝘤、𝓢𝓬𝓻𝓲𝓹𝓽 等 Unicode 花式英文字体,可复制到社交媒体。 Generate 𝐁𝐨𝐥𝐝, 𝘐𝘵𝘢𝘭𝘪𝘤, 𝓢𝓬𝓻𝓲𝓹𝓽 and other Unicode fonts to paste anywhere.📏 文本自动换行Word Wrap Texttext-wrap 按指定列宽对长文本自动换行,不截断单词。 Wrap long text at a given column width without breaking words.🧱 文本列提取Extract Column from Textcolumn-extractor 从 CSV、TSV 或空格分隔的文本中提取指定列。 Extract a specific column from CSV, TSV or space-separated text.📋 列表格式转换List Converter (Lines ↔ Comma)list-converter 在换行列表和逗号分隔列表之间互相转换,可加引号,常用于 SQL IN 查询。 Convert between line lists and comma-separated lists, with optional quotes (great for SQL IN).👻 不可见字符检测清除Invisible Character Removerremove-invisible-characters 检测并删除零宽空格、BOM、不换行空格等隐藏字符。 Detect and remove zero-width spaces, BOM, non-breaking spaces and other invisible characters.🧹 按关键词筛选行Filter Lines by Keywordline-filter 保留或删除包含指定关键词(或正则)的行,快速过滤日志和列表。 Keep or remove lines containing a keyword or regex — filter logs and lists fast.🪞 回文检测Palindrome Checkerpalindrome-checker 检测单词、句子或数字是否为回文(正读反读相同),忽略标点和大小写。 Check if a word, phrase or number is a palindrome, ignoring punctuation and case.📻 北约音标字母转换NATO Phonetic Alphabet Converternato-phonetic-alphabet 把字母和数字转换为北约无线电音标(Alpha Bravo Charlie),用于电话拼读。 Convert text to the NATO phonetic alphabet (Alpha Bravo Charlie) for spelling on calls.📖 英文可读性评分(Flesch)Readability Score Checker (Flesch)readability-score 计算英文文本的 Flesch 阅读易度、Flesch-Kincaid 年级、Gunning Fog 指数和平均句长。 Flesch Reading Ease, Flesch-Kincaid grade, Gunning Fog index and sentence stats for English text.Ⓐ 去除重音符号/变音符号Remove Accents & Diacriticsremove-accents 去掉文字中的重音和变音符号:é→e、ü→u、ñ→n、ß→ss、Ł→L,常用于生成 URL 和文件名。 Strip accents and diacritics: é→e, ü→u, ñ→n, ß→ss, Ł→L — useful for URLs and file names.🔊 文字转语音(朗读)Text to Speechtext-to-speech 用浏览器内置语音朗读文字,支持中文、英文等多种语言,可调语速和音调。完全免费,无需上传。 Read text aloud with your browser's built-in voices — Chinese, English and more — with rate and pitch control.🔁 重复词查找Duplicate Word Finderduplicate-word-finder 找出文本中重复出现的单词和连续重复(如 the the),按次数排序,适合校对文章。 Find repeated words and accidental doubles like 'the the', sorted by count — handy for proofreading.🔀 变位词检查Anagram Checkeranagram-checker 检查两个单词或短语是否互为变位词(字母相同、顺序不同),忽略大小写、空格和标点。 Check whether two words or phrases are anagrams, ignoring case, spaces and punctuation.✂️ 文本分割(按字数/分隔符)Split Text into Chunkssplit-text 把长文本按字符数、单词数、行数或自定义分隔符切成多段,可加序号(如 1/5),适合发推和分段。 Split long text into chunks by characters, words, lines or a delimiter, with optional numbering like 1/5.🚫 去除标点符号Remove Punctuationremove-punctuation 一键删除文本中的中英文标点符号,可选择保留空格、数字、换行、单词内连字符和 emoji。 Remove English and Chinese punctuation, with options to keep spaces, digits, line breaks, in-word hyphens and emoji.🔀 随机打乱行顺序Shuffle Lines Randomlyshuffle-lines 把文本的行(或单词)随机打乱顺序,适合抽签排序、随机名单和试题乱序。 Randomly shuffle the lines (or words) of text — for draws, random order lists and quiz shuffling.👓 仿生阅读转换器Bionic Reading Converterbionic-reading-converter 把英文文本转换为“仿生阅读”格式:加粗每个单词的前半部分,帮助快速阅读,可复制 HTML。 Convert English text to Bionic Reading style by bolding the first part of each word; copy the HTML.❝ 智能引号转换(弯引号/直引号)Smart Quotes Convertersmart-quotes-converter 直引号 " ' 与排版用弯引号 “ ” ‘ ’ 互转,可同时转换 -- 为破折号、... 为省略号。 Convert straight quotes to typographic curly quotes and back, plus -- to em dash and ... to ellipsis.S̶ 删除线/下划线文字生成器Strikethrough & Underline Text Generatortext-decorator 生成可复制到任何地方的删除线、下划线、双下划线、上划线和斜线文字(Unicode 组合字符)。 Make strikethrough, underline, double-underline, overline and slashed text you can paste anywhere (Unicode).🔠 ASCII 艺术字生成器ASCII Art Text Banner Generatorascii-art-text 把英文和数字转换为大号 ASCII 艺术字横幅,可选填充字符,适合代码注释、终端和签名。 Turn letters and numbers into big ASCII-art banners with a choice of fill characters — for code comments and terminals.🅰️ 首字母缩写生成器Acronym Generatoracronym-generator 取每个单词的首字母生成缩写(如 Portable Network Graphics → PNG),可忽略 of/and/the 等虚词,支持批量。 Create acronyms from the first letter of each word (Portable Network Graphics → PNG), skipping minor words.
查看全部 43 个文本工具 →See all 43 text tools →💻 开发工具Developer Tools 全部 42 →All 42 →
🧾 JSON 格式化校验JSON Formatter & Validatorjson-formatter 在线 JSON 格式化、压缩和语法校验工具,精确定位错误。 Format, minify and validate JSON online with clear error messages.🧪 正则表达式测试Regex Testerregex-tester 在线测试 JavaScript 正则表达式,实时高亮匹配结果并显示分组。 Test JavaScript regular expressions with live match highlighting and groups.⏰ Cron 表达式解析Cron Expression Explainercron-explainer 在线解析 Cron 表达式含义,并列出接下来 5 次执行时间。 Explain cron expressions in plain words and list the next 5 run times.🔀 YAML JSON 互转YAML to JSON Converteryaml-json 在线 YAML 转 JSON、JSON 转 YAML,并校验语法。 Convert YAML to JSON and JSON to YAML with validation.📊 CSV JSON 互转CSV to JSON Convertercsv-json 在线 CSV 转 JSON、JSON 转 CSV,支持引号、逗号和换行字段。 Convert CSV to JSON and JSON to CSV, handling quotes and embedded commas.Ⓜ️ Markdown 在线预览Markdown Live Previewmarkdown-preview 在线 Markdown 编辑器,实时预览渲染效果,可复制生成的 HTML。 Online Markdown editor with live preview and HTML output.🗄️ SQL 格式化SQL Formattersql-formatter 在线 SQL 美化格式化工具,关键字大写、自动换行缩进。 Beautify SQL: uppercase keywords, line breaks and indentation.🧵 字符串转义/反转义String Escape / Unescapestring-escape JSON/JavaScript 字符串转义和反转义:换行、引号、反斜杠、Unicode。 Escape and unescape JSON/JavaScript strings: newlines, quotes, backslashes, Unicode.📰 XML 格式化XML Formatter & Validatorxml-formatter 在线 XML 格式化、压缩和语法校验,自动缩进美化。 Format, minify and validate XML with automatic indentation.🔁 XML 转 JSONXML to JSON Converterxml-to-json 在线将 XML 转换为 JSON,属性以 @ 前缀表示,重复元素自动转为数组。 Convert XML to JSON; attributes get an @ prefix and repeated elements become arrays.🎀 CSS 格式化/压缩CSS Beautifier & Minifiercss-formatter 在线 CSS 代码美化格式化和压缩,支持 @media 嵌套。 Beautify or minify CSS code, including nested @media rules.🧾 HTML 格式化/压缩HTML Beautifier & Minifierhtml-formatter 在线 HTML 代码格式化缩进和压缩,保留 script、style、pre 内容。 Beautify (indent) or minify HTML while preserving script, style and pre blocks.🟦 JSON 转 TypeScriptJSON to TypeScript Interfacejson-to-typescript 根据 JSON 数据自动生成 TypeScript interface 类型定义,支持嵌套对象和数组。 Generate TypeScript interfaces from JSON, including nested objects and arrays.🐹 JSON 转 Go 结构体JSON to Go Structjson-to-go 根据 JSON 自动生成 Go struct 结构体定义,带 json tag。 Generate Go struct definitions with json tags from JSON.🧩 URL 解析器URL Parserurl-parser 在线解析 URL 的协议、域名、端口、路径、查询参数和锚点,参数自动解码。 Parse a URL into protocol, host, port, path, query parameters (decoded) and hash.❓ 查询字符串 JSON 互转Query String ↔ JSON Converterquery-string-converter URL 查询字符串(a=1&b=2)与 JSON 对象互相转换,重复参数转为数组。 Convert URL query strings (a=1&b=2) to JSON and back; repeated keys become arrays.⚙️ .env 与 JSON 互转.env ↔ JSON Converterenv-to-json 在 .env 环境变量文件和 JSON 之间互相转换,自动处理引号、注释和 export。 Convert .env files to JSON and back, handling quotes, comments and export.📑 Markdown 表格生成器Markdown Table Generatormarkdown-table-generator 把 CSV、TSV 或 Excel 复制的数据转换为对齐的 Markdown 表格。 Convert CSV, TSV or pasted Excel data into an aligned Markdown table.🌀 cURL 转代码cURL to Fetch / Python Convertercurl-converter 把 cURL 命令转换为 JavaScript fetch、Python requests 代码,支持请求头、数据和认证。 Convert cURL commands to JavaScript fetch or Python requests code (headers, data, auth).⇥ Tab 与空格互转Tabs ↔ Spaces Convertertabs-spaces-converter 将代码中的 Tab 缩进转换为空格,或把行首空格转换为 Tab。 Convert tab indentation to spaces, or leading spaces to tabs.👁️ HTML 在线运行预览HTML Live Preview / Editorhtml-preview 在线编辑 HTML、CSS、JavaScript 并实时预览效果,在沙箱中安全运行。 Edit HTML/CSS/JS and see a live preview in a sandboxed frame.🚦 HTTP 状态码大全HTTP Status Codes Listhttp-status-codes HTTP 状态码速查表:200、301、404、500 等常见状态码的含义说明,可搜索。 Searchable reference of HTTP status codes like 200, 301, 404 and 500 with meanings.📎 MIME 类型查询MIME Types Lookupmime-types 常见文件扩展名与 MIME 类型(Content-Type)对照表,可按扩展名或类型搜索。 Look up MIME types (Content-Type) for common file extensions, searchable.⌨️ 键盘按键码查询JavaScript Keycode Testerkeycode-tester 按下任意键,查看 event.key、event.code、keyCode 和修饰键状态,前端开发必备。 Press any key to see event.key, event.code, keyCode and modifier states.🔐 Linux 权限计算器 chmodChmod Calculatorchmod-calculator Linux/Unix 文件权限计算器:数字(755)与符号(rwxr-xr-x)互转,并生成 chmod 命令。 Convert Linux permissions between octal (755) and symbolic (rwxr-xr-x) and build chmod commands.🏷️ 语义化版本比较Semantic Version Comparesemver-compare 比较两个语义化版本号(SemVer)的大小,并计算下一个 major/minor/patch 版本。 Compare two semantic versions and compute the next major/minor/patch versions.🔡 ASCII 码对照表ASCII Tableascii-table 完整 ASCII 码表(0–127),包含十进制、十六进制、八进制、二进制和字符,可搜索。 Full ASCII table (0–127) with decimal, hex, octal, binary and characters, searchable.🧭 JSONPath 在线测试JSONPath Testerjsonpath-tester 在线测试 JSONPath 表达式:支持 $.a.b、[0]、[*]、..递归、[start:end] 切片和 [?(@.price<10)] 过滤。 Test JSONPath expressions: $.a.b, [0], [*], recursive .., slices and [?(@.price<10)] filters.🆚 JSON 对比(差异比较)JSON Diffjson-diff 比较两个 JSON 的差异,列出新增、删除和修改的字段路径。在输入框中先放旧 JSON,用一行 ===== 分隔新 JSON。 Compare two JSON documents and list added, removed and changed paths. Put old JSON, a ===== line, then new JSON.📐 JSON Schema 生成器JSON Schema Generatorjson-schema-generator 根据示例 JSON 自动生成 JSON Schema(Draft-07),推断类型、必填字段、数组元素和常见格式(email、date-time、uri)。 Generate a JSON Schema (draft-07) from sample JSON, inferring types, required keys, array items and formats.⬇️ HTML 转 MarkdownHTML to Markdown Converterhtml-to-markdown 把 HTML 代码转换为 Markdown:标题、段落、粗体、斜体、链接、图片、列表、引用、代码块和表格。 Convert HTML to Markdown: headings, paragraphs, bold, italic, links, images, lists, quotes, code and tables.⏲️ Cron 表达式生成器Cron Expression Generatorcron-expression-generator 通过下拉选项可视化生成 Cron 表达式(分 时 日 月 周),显示中文/英文说明和未来 5 次执行时间。 Build cron expressions visually (minute hour day month weekday) with a plain-language description and the next 5 run times.🤖 robots.txt 生成器Robots.txt Generatorrobots-txt-generator 可视化生成 robots.txt:允许/禁止抓取、禁止目录、屏蔽 AI 爬虫(GPTBot 等)、Crawl-delay 和 Sitemap。 Generate robots.txt: allow/disallow, blocked paths, AI crawler blocking (GPTBot etc.), crawl-delay and sitemap.🏷️ SEO Meta 标签生成器SEO Meta Tag Generatormeta-tag-generator 生成网页 SEO 所需的 title、description、canonical、Open Graph 和 Twitter Card 标签,带字数提示和搜索结果预览。 Generate title, description, canonical, Open Graph and Twitter Card tags with length hints and a search-result preview.🔗 UTM 链接生成器UTM Campaign URL Builderutm-builder 为推广链接添加 utm_source、utm_medium、utm_campaign 等参数,追踪广告和社交媒体流量。 Add utm_source, utm_medium, utm_campaign and other UTM parameters to track campaign traffic.↪️ .htaccess / Nginx 重定向生成器Redirect Generator (.htaccess & Nginx)htaccess-redirect-generator 批量生成 301/302 重定向规则,以及强制 HTTPS、统一 www 的配置,同时输出 Apache .htaccess 和 Nginx 写法。 Generate 301/302 redirects plus force-HTTPS and www rules for Apache .htaccess and Nginx.🙈 .gitignore 生成器Gitignore Generatorgitignore-generator 勾选语言、框架、编辑器和操作系统,一键生成合并去重的 .gitignore 文件。 Pick languages, editors and operating systems to generate a merged, de-duplicated .gitignore.📜 开源许可证生成器Open Source License Generatorlicense-generator 生成 MIT、ISC、BSD-2、Unlicense 许可证全文,以及 Apache-2.0、GPL-3.0 源码头部声明,自动填写年份和作者。 Generate MIT, ISC, BSD-2 and Unlicense texts plus Apache-2.0 / GPL-3.0 headers with your name and year.🗜️ HTML 压缩HTML Minifierhtml-minifier 压缩 HTML:删除注释、多余空白和换行,保留 pre/textarea/script/style 内容,显示压缩率。 Minify HTML by removing comments and extra whitespace while preserving pre/textarea/script/style, with savings shown.↩️ 换行符转换(CRLF/LF)Line Ending Converter (CRLF ↔ LF)line-ending-converter 检测文本或文件的换行符类型(Windows CRLF、Unix LF、旧 Mac CR),并转换后下载。 Detect line endings (Windows CRLF, Unix LF, classic Mac CR) in text or a file, convert and download.🗃️ CSV 转 SQL(INSERT 语句)CSV to SQL Convertercsv-to-sql 把 CSV/Excel 粘贴的数据转换为 CREATE TABLE 和 INSERT 语句,自动推断字段类型,支持 MySQL、PostgreSQL、SQLite。 Convert CSV (or pasted spreadsheet data) into CREATE TABLE and INSERT statements with inferred types for MySQL, PostgreSQL and SQLite.📄 JSON 转 XMLJSON to XML Converterjson-to-xml 把 JSON 转换为格式化的 XML:数组展开为重复元素,以 @ 开头的键转为属性,#text 为文本,自动转义特殊字符。 Convert JSON to pretty XML: arrays become repeated elements, '@' keys become attributes and '#text' becomes text, with escaping.
查看全部 42 个开发工具 →See all 42 developer tools →🔐 编码与加密Encoding & Crypto 全部 23 →All 23 →
🔐 Base64 编码解码Base64 Encode / Decodebase64 在线 Base64 编码和解码工具,完整支持中文 UTF-8。 Online Base64 encoder and decoder with full UTF-8 support.🌐 URL 编码解码URL Encode / Decodeurl-encode 在线 URL 编码(百分号编码)和解码,支持中文和特殊字符。 Percent-encode or decode URLs and query strings, including Unicode.🏷️ HTML 实体编码解码HTML Entity Encoder / Decoderhtml-entities 在线 HTML 特殊字符转义与反转义,如 < > &,防止 XSS。 Escape and unescape HTML entities like < > &.🎫 JWT 解码JWT Decoderjwt-decoder 在线解析 JWT Token,查看 Header、Payload 和过期时间,本地解码不上传。 Decode JSON Web Tokens to inspect header, payload and expiry, locally.#️⃣ 哈希生成器 MD5/SHAHash Generator (MD5, SHA)hash-generator 在线计算文本的 MD5、SHA-1、SHA-256、SHA-384、SHA-512 哈希值。 Compute MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text.🅱️ Base32 编码解码Base32 Encode / Decodebase32 在线 Base32 编码和解码(RFC 4648),支持中文 UTF-8。 Base32 encode and decode (RFC 4648) with UTF-8 support.🅱️ Base58 编码解码Base58 Encode / Decodebase58 在线 Base58 编码解码(比特币字母表),常用于加密货币地址。 Base58 encode/decode using the Bitcoin alphabet.🔣 文本十六进制转换Text to Hex Converterhex-converter 文本与十六进制(Hex)互相转换,按 UTF-8 编码,可选分隔符。 Convert text to hexadecimal (UTF-8) and back, with optional separators.0️⃣ 文本二进制转换Text to Binary Convertertext-to-binary 文本与二进制 0/1 互相转换(UTF-8),也可解码二进制为文字。 Convert text to binary (UTF-8) and binary back to text.🆎 Unicode 编码转换Unicode Converterunicode-converter 文本与 Unicode 码点(U+4E2D)、\u 转义、HTML 数字实体互相转换。 Convert text to Unicode code points (U+4E2D), \u escapes or HTML numeric entities, and back.🔄 ROT13 / ROT47 加解密ROT13 / ROT47 Cipherrot13 在线 ROT13 和 ROT47 编码解码,再次转换即可还原。 Encode/decode text with ROT13 or ROT47 (apply again to reverse).🏛️ 凯撒密码加解密Caesar Ciphercaesar-cipher 在线凯撒密码加密解密,可自定义位移,并可一键列出全部 25 种暴力破解结果。 Caesar cipher encoder/decoder with custom shift and brute-force all 25 shifts.🗝️ 维吉尼亚密码Vigenère Ciphervigenere-cipher 在线维吉尼亚密码加密与解密,使用关键词进行多表替换。 Encrypt and decrypt with the Vigenère cipher using a keyword.📡 摩斯密码翻译Morse Code Translatormorse-code 英文/数字与摩斯电码互相翻译,自动识别输入,可按设定速度(WPM)播放声音。 Translate text to Morse code and back (auto-detected) and play it as sound at a chosen speed (WPM).✅ CRC32 校验计算CRC32 Checksum Calculatorcrc32-checksum 在线计算文本的 CRC32、CRC32C 和 Adler-32 校验值。 Compute CRC32, CRC32C and Adler-32 checksums of text.🔏 HMAC 生成器HMAC Generatorhmac-generator 在线计算 HMAC-SHA256、HMAC-SHA1、HMAC-SHA512 签名,输出 Hex 和 Base64。 Generate HMAC-SHA256/SHA1/SHA512 signatures in hex and Base64.🧾 文件哈希校验File Checksum (MD5/SHA-256)file-checksum 在线计算文件的 MD5、SHA-1、SHA-256、SHA-512 校验值,文件不上传,可比对下载文件是否被篡改。 Calculate MD5, SHA-1, SHA-256 and SHA-512 checksums of any file locally — verify downloads.🔒 AES 加密解密AES Encrypt / Decryptaes-encryption 使用 AES-256-GCM 和密码在线加密解密文本(PBKDF2 派生密钥),完全本地运行。 Encrypt and decrypt text with a password using AES-256-GCM (PBKDF2), fully local.🧂 Bcrypt 加密与验证Bcrypt Hash Generator & Checkerbcrypt-generator 在线生成 bcrypt 密码哈希并验证密码与哈希是否匹配,可设置成本因子。 Generate bcrypt password hashes and verify a password against a hash.⏲️ TOTP 动态验证码生成器TOTP / 2FA Code Generatortotp-generator 根据 Base32 密钥生成 Google Authenticator 兼容的 TOTP 两步验证码,本地运行。 Generate Google Authenticator-compatible TOTP 2FA codes from a Base32 secret, locally.🗝️ RSA 密钥对生成器RSA Key Pair Generatorrsa-key-generator 在线生成 RSA 公钥/私钥对(2048/3072/4096 位,PEM 格式),使用浏览器 WebCrypto 本地生成。 Generate RSA public/private key pairs (2048–4096-bit PEM) locally with WebCrypto.🎟️ JWT 生成器JWT Generator (HS256)jwt-generator 在线用密钥生成 HS256/HS384/HS512 签名的 JWT Token,用于接口调试。 Create HS256/HS384/HS512-signed JSON Web Tokens for API testing.🛡️ 密码强度检测Password Strength Checkerpassword-strength-checker 检测密码强度,估算熵值和暴力破解所需时间,并给出改进建议。密码不会上传。 Check password strength, estimated entropy and crack time, with tips. Never uploaded.
🖼️ 图片工具Image Tools 全部 30 →All 30 →
🗜️ 图片压缩Image Compressorimage-compressor 在线压缩 JPG/PNG/WebP 图片,本地处理不上传。 Compress JPG/PNG/WebP images online, processed locally.🔄 图片格式转换Image Format Converterimage-converter 在线将图片在 PNG、JPG、WebP 之间互相转换,免费且不上传。 Convert images between PNG, JPG and WebP online, free and private.🔳 二维码生成器QR Code Generatorqr-code-generator 免费在线生成二维码,支持网址、文本,可下载图片。 Free online QR code generator for URLs and text, download as image.✂️ 图片裁剪Image Cropperimage-crop 在线裁剪图片,按像素精确设置裁剪区域,或选择 1:1、16:9 等比例。 Crop images online by exact pixels or preset aspect ratios.📐 图片尺寸调整Image Resizerimage-resize 在线修改图片尺寸(像素或百分比),可保持宽高比,本地处理。 Resize images by pixels or percentage while keeping aspect ratio.🔃 图片旋转翻转Rotate & Flip Imageimage-rotate 在线旋转图片 90°/180°,水平或垂直翻转,一键下载。 Rotate images by 90°/180° and flip horizontally or vertically.🧬 图片转 Base64Image to Base64image-to-base64 在线将图片转换为 Base64 Data URI,可直接用于 HTML 和 CSS。 Convert images to Base64 data URIs for HTML and CSS.⭐ Favicon 生成器Favicon Generatorfavicon-generator 在线从图片生成网站 favicon.ico 及各尺寸 PNG 图标(16 到 512 像素)和 HTML 代码。 Generate favicon.ico and PNG icons (16–512px) plus HTML tags from any image.🎛️ 图片滤镜调整Image Filters & Adjustmentsimage-filters 在线调整图片亮度、对比度、饱和度,一键黑白、怀旧、反色、模糊。 Adjust brightness, contrast, saturation; apply grayscale, sepia, invert and blur.💧 图片加水印Add Watermark to Imageimage-watermark 在线给图片添加文字水印,可设置位置、大小、颜色、透明度或平铺,保护版权。 Add a text watermark to images — position, size, color, opacity or tiled.⬜ 图片圆角Round Image Cornersimage-round-corners 在线给图片添加圆角或裁剪成圆形,输出透明背景 PNG。 Round the corners of an image or make it a circle; outputs transparent PNG.🖼️ 图片加边框Add Border to Imageimage-add-border 在线给图片添加纯色边框或留白,可设置宽度和颜色。 Add a solid border or padding around an image with custom width and color.👾 图片马赛克/像素化Pixelate Imageimage-pixelate 在线给图片打马赛克、像素化处理,可调像素块大小,用于隐私遮挡或像素风。 Pixelate an image with adjustable block size — for privacy or a retro look.🎯 图片取色器Image Color Pickerimage-color-picker 上传图片后点击任意位置获取颜色的 HEX、RGB、HSL 值。 Upload an image and click anywhere to get the HEX, RGB and HSL color.🎨 图片主色提取Image Color Palette Extractorimage-palette-extractor 从图片中提取主要颜色(调色板),显示 HEX 值和占比,适合设计配色。 Extract the dominant color palette from an image with HEX values and percentages.🧩 图片拼接Merge Images (Side by Side)image-merge 在线把两张或多张图片横向或纵向拼接成一张长图,可设置间距和背景色。 Combine multiple images side by side or stacked vertically, with spacing and background.🔲 图片切割(九宫格)Image Splitter (Grid)image-splitter 在线把图片切割成九宫格或任意行列的小图,适合朋友圈和 Instagram 拼图。 Split an image into a 3×3 (or any) grid of tiles for social media.🔳 占位图生成器Placeholder Image Generatorplaceholder-image 在线生成指定尺寸、颜色和文字的占位图片(PNG/JPG),用于网页设计和原型。 Generate placeholder images with custom size, colors and text for mockups.🔄 SVG 转 PNGSVG to PNG Convertersvg-to-png 在线将 SVG 矢量图转换为任意尺寸的 PNG、JPG 或 WebP 图片,可粘贴 SVG 代码或上传文件。 Convert SVG to PNG, JPG or WebP at any size — paste SVG code or upload a file.ℹ️ 图片信息查看Image Info Viewerimage-info 查看图片的尺寸、宽高比、文件大小、格式、像素数等信息。 View image dimensions, aspect ratio, file size, format and megapixels.😂 表情包制作Meme Generatormeme-generator 在线制作表情包:上传图片,添加上下经典白字黑边文字,一键下载。 Make memes: upload an image and add classic top/bottom outlined text.🔤 图片转字符画Image to ASCII Artimage-to-ascii 把图片转换为 ASCII 字符画,可调宽度和反色,复制到任何地方。 Convert images into ASCII art with adjustable width; copy anywhere.👓 色盲模拟器Color Blindness Simulatorcolor-blindness-simulator 模拟红色盲、绿色盲、蓝色盲和全色盲看到的图片效果,帮助无障碍设计。 Simulate how images look with protanopia, deuteranopia, tritanopia and achromatopsia.📷 二维码识别(图片扫码)QR Code Scanner (from Image)qr-code-scanner 上传或拖入含有二维码的图片/截图,在浏览器本地识别二维码内容,网址可直接打开。 Decode a QR code from an uploaded image or screenshot, entirely in your browser.▮▯ 条形码生成器Barcode Generatorbarcode-generator 在线生成 Code128、EAN-13、EAN-8、UPC-A、Code39、ITF-14、Codabar 条形码,可下载 SVG 或 PNG。 Generate Code128, EAN-13, EAN-8, UPC-A, Code39, ITF-14 and Codabar barcodes; download SVG or PNG.🔎 照片 EXIF 信息查看/清除EXIF Viewer & Removerexif-viewer 查看照片的 EXIF 元数据(相机、镜头、光圈、快门、ISO、拍摄时间、GPS 位置),并一键导出去除 EXIF 的图片保护隐私。 View photo EXIF metadata (camera, lens, aperture, shutter, ISO, date, GPS) and export a copy with metadata removed.📕 图片转 PDF(多张合并)Images to PDF Converterimages-to-pdf 把多张 JPG/PNG/WebP 图片合并成一个 PDF 文件,可选 A4 页面或按图片尺寸、页边距和图片质量,本地生成不上传。 Combine multiple JPG/PNG/WebP images into one PDF — A4 or image-sized pages, margins and quality — generated locally.📊 图片直方图分析Image Histogramimage-histogram 分析图片的 RGB 和亮度直方图,显示平均亮度、对比度和过曝/欠曝像素比例。 Show an image's RGB and luminance histograms with mean brightness, contrast and clipped-pixel percentages.🖼️ 截图美化(加背景/阴影/圆角)Screenshot Beautifierscreenshot-beautifier 给截图加渐变背景、内边距、圆角、阴影和浏览器窗口边框,一键生成适合分享和做演示的精美图片。 Add a gradient background, padding, rounded corners, shadow and a browser frame to screenshots for sharing.🪪 证件照制作(裁剪排版)ID Photo Maker (Crop & Print Layout)id-photo-maker 把照片裁剪为一寸、二寸、护照、签证等标准证件照尺寸(300dpi),可调位置和缩放、填充背景色,并生成 6 寸相纸排版。 Crop photos to standard ID sizes (1-inch, 2-inch, passport, visas) at 300 dpi, fill the background and make a 4×6 print sheet.
查看全部 30 个图片工具 →See all 30 image tools →🎨 颜色工具Color Tools 全部 9 →All 9 →
🎨 颜色转换器Color Converter (HEX/RGB/HSL)color-converter 在线颜色格式转换:HEX、RGB、HSL 互转,带取色器和预览。 Convert colors between HEX, RGB and HSL with a picker and preview.🌓 颜色对比度检测Color Contrast Checker (WCAG)contrast-checker 检测文字颜色与背景色的对比度,判断是否符合 WCAG AA/AAA 无障碍标准。 Check text/background color contrast against WCAG AA and AAA accessibility standards.🌈 颜色深浅色阶生成Color Shades & Tints Generatorcolor-shades-generator 输入一个颜色,生成从浅到深的 10 级色阶(tints & shades),点击即可复制。 Generate 10-step tints and shades from any color; click to copy.🎨 配色方案生成器Color Palette Generatorcolor-palette-generator 根据色轮生成互补色、三角色、类似色、分裂互补色和四方色配色方案。 Generate complementary, triadic, analogous, split-complementary and tetradic color schemes.🎲 随机颜色生成器Random Color Generatorrandom-color-generator 随机生成好看的颜色,显示 HEX/RGB/HSL,可锁定色相或生成柔和色、亮色。 Generate random colors (HEX/RGB/HSL) — any, pastel, vivid or dark, with optional hue lock.🧪 颜色混合器Color Mixercolor-mixer 把两种颜色按任意比例混合,得到中间色和渐变过渡色。 Mix two colors at any ratio and see the blended color plus intermediate steps.🖨️ RGB 与 CMYK 互转RGB to CMYK Converterrgb-cmyk-converter HEX、rgb()、hsl() 或颜色名与印刷用 CMYK 值互相转换。 Convert HEX, rgb(), hsl() or named colors to print CMYK values and back.🏷️ 颜色名称查询(最接近的 CSS 颜色名)Color Name Findercolor-name-finder 输入任意颜色,找出最接近的 CSS 标准颜色名称(148 个),按感知色差(CIELAB ΔE)排序。 Find the closest CSS named colors (all 148) to any color, ranked by perceptual difference (CIELAB ΔE).🌡️ 色温转 RGB(开尔文)Color Temperature to RGB (Kelvin)color-temperature-converter 把色温(1000K–40000K)转换为近似的 RGB/HEX 颜色,并显示常见光源参考,适合摄影和灯光设计。 Convert color temperature (1000 K–40000 K) to an approximate RGB/HEX color, with common light-source references.
🖌️ CSS 生成器CSS Generators 全部 23 →All 23 →
🔲 CSS 阴影生成器CSS Box Shadow Generatorbox-shadow-generator 可视化调整 CSS box-shadow 阴影效果,实时预览并复制代码。 Visually design CSS box-shadow with live preview and copy the code.⭕ CSS 圆角生成器CSS Border Radius Generatorborder-radius-generator 可视化生成 CSS border-radius 圆角代码,可分别设置四个角。 Generate CSS border-radius visually, with each corner adjustable.🌅 CSS 渐变生成器CSS Gradient Generatorcss-gradient-generator 在线生成 CSS 线性渐变和径向渐变背景代码,支持多色和角度。 Create CSS linear and radial gradient backgrounds with multiple colors and angles.🅰️ CSS 文字阴影生成器CSS Text Shadow Generatortext-shadow-generator 可视化生成 CSS text-shadow 文字阴影、发光和描边效果。 Design CSS text-shadow effects (shadow, glow, outline) visually.📦 Flexbox 布局生成器CSS Flexbox Generatorflexbox-generator 可视化学习和生成 CSS Flexbox 布局代码:方向、对齐、换行、间距。 Learn and generate CSS Flexbox layouts visually: direction, alignment, wrap, gap.▦ CSS Grid 布局生成器CSS Grid Generatorcss-grid-generator 可视化生成 CSS Grid 网格布局代码,设置行列数、尺寸和间距。 Generate CSS Grid layouts visually — columns, rows, sizes and gaps.🔀 CSS Transform 生成器CSS Transform Generatorcss-transform-generator 可视化生成 CSS transform:旋转、缩放、倾斜、平移,实时预览。 Generate CSS transforms — rotate, scale, skew, translate — with live preview.🎚️ CSS 滤镜生成器CSS Filter Generatorcss-filter-generator 可视化生成 CSS filter:模糊、亮度、对比度、灰度、色相旋转等效果。 Generate CSS filter effects — blur, brightness, contrast, grayscale, hue-rotate and more.🪟 毛玻璃效果生成器Glassmorphism CSS Generatorglassmorphism-generator 生成毛玻璃(Glassmorphism)CSS 效果代码:背景模糊、透明度和边框。 Generate glassmorphism CSS: backdrop blur, transparency and border.🔺 CSS 三角形生成器CSS Triangle Generatorcss-triangle-generator 用纯 CSS border 生成上下左右各方向的三角形箭头代码。 Generate pure-CSS triangles (arrows) in any direction using borders.🔘 CSS 按钮生成器CSS Button Generatorcss-button-generator 可视化设计 CSS 按钮样式:颜色、圆角、内边距、字体和阴影。 Design CSS button styles visually: colors, radius, padding, font and shadow.✂️ CSS clip-path 生成器CSS Clip-path Generatorclip-path-generator 生成 CSS clip-path 形状:三角形、菱形、五边形、六边形、星形、箭头等。 Generate CSS clip-path shapes: triangle, rhombus, pentagon, hexagon, star, arrow and more.🌈 渐变文字生成器CSS Gradient Text Generatortext-gradient-generator 生成 CSS 渐变色文字效果代码(background-clip: text)。 Generate CSS gradient text (background-clip: text).〰️ CSS 动画曲线生成器CSS Cubic Bezier Generatorcubic-bezier-generator 生成 CSS transition/animation 的 cubic-bezier 缓动曲线,实时预览动画效果。 Create cubic-bezier easing curves for CSS transitions and preview the motion.📐 PX 与 REM 转换PX to REM Converterpx-to-rem 在 px、rem、em 之间互相换算,可设置根字号,附常用尺寸对照表。 Convert between px, rem and em with a custom root font size, plus a reference table.🗜️ CSS clamp() 响应式字号生成器CSS Clamp Generator (Fluid Typography)css-clamp-generator 根据最小/最大字号和视口宽度生成 CSS clamp() 流式响应字号代码。 Generate CSS clamp() for fluid typography from min/max sizes and viewport widths.⚪ 新拟态(Neumorphism)CSS 生成器Neumorphism CSS Generatorneumorphism-generator 生成新拟态风格的柔和阴影 CSS:调节颜色、距离、模糊、强度和凹凸形状,实时预览。 Generate soft-UI neumorphism box-shadow CSS with color, distance, blur, intensity and shape, live preview.🏁 CSS 背景图案生成器CSS Background Pattern Generatorcss-pattern-generator 用纯 CSS 渐变生成条纹、圆点、棋盘格、网格等背景图案,可调颜色和尺寸,无需图片。 Pure-CSS background patterns — stripes, dots, checkerboard, grid — with custom colors and size, no images.📐 CSS 单位换算(px/rem/em/pt/vw)CSS Unit Converter (px, rem, em, pt, vw)css-unit-converter 在 px、rem、em、pt、vw、vh、%、cm、mm、in 之间换算 CSS 长度,可设根字号和视口尺寸。 Convert CSS lengths between px, rem, em, pt, vw, vh, %, cm, mm and in with your root font size and viewport.🖥️ 宽高比计算器Aspect Ratio Calculatoraspect-ratio-calculator 计算宽高比(如 1920×1080 = 16:9),或按比例由新宽度求高度,适用于视频、图片和响应式设计。 Find the aspect ratio (1920×1080 = 16:9) or resize by ratio — for video, images and responsive design.🎯 CSS 选择器优先级计算CSS Specificity Calculatorcss-specificity-calculator 计算 CSS 选择器的优先级(a, b, c),支持 :not()、:is()、:where()、伪元素和属性选择器,批量比较。 Calculate CSS selector specificity (a, b, c) including :not(), :is(), :where(), pseudo-elements and attributes.🌀 CSS 加载动画生成器CSS Loader / Spinner Generatorcss-loader-generator 生成纯 CSS 加载动画(旋转圈、跳动圆点、条形、脉冲、双环),可调颜色、大小和速度,复制 HTML+CSS 即用。 Pure-CSS loading spinners — ring, bouncing dots, bars, pulse, dual ring — with color, size and speed; copy HTML + CSS.🎞️ CSS 动画生成器(@keyframes)CSS Animation Generator (@keyframes)css-animation-generator 选择淡入、滑入、弹跳、抖动、脉冲、旋转、缩放等预设,调节时长、缓动、次数和延迟,生成 @keyframes 动画代码并实时预览。 Pick fade, slide, bounce, shake, pulse, rotate or zoom presets, tune duration, easing, iterations and delay, and get @keyframes code with a live preview.
💰 金融理财Finance 全部 45 →All 45 →
🏦 房贷计算器Loan & Mortgage Calculatorloan-calculator 房贷/贷款计算器:等额本息和等额本金,计算月供、总利息和还款计划。 Mortgage/loan calculator: monthly payment, total interest and amortization schedule.📈 复利计算器Compound Interest Calculatorcompound-interest-calculator 计算复利投资终值:本金、年利率、年限、复利频率和每月追加投资。 Calculate compound interest with principal, rate, years, compounding frequency and monthly contributions.💵 单利计算器Simple Interest Calculatorsimple-interest-calculator 计算单利利息和本息合计:利息 = 本金 × 利率 × 时间。 Calculate simple interest and total: interest = principal × rate × time.🎯 存钱目标计算器Savings Goal Calculatorsavings-goal-calculator 想在 N 年后攒够目标金额?计算每月需要存多少钱(含收益)。 Find out how much to save each month to reach a savings goal, including returns.💹 定投收益计算器SIP / Regular Investment Calculatorinvestment-calculator 基金定投计算器:每月定投金额、年化收益率和年限,计算最终收益。 Calculate returns on regular monthly investing (SIP / dollar-cost averaging).📊 投资回报率 ROI 计算器ROI Calculatorroi-calculator 计算投资回报率 ROI 和年化收益率,输入投入、回收金额和持有期。 Calculate return on investment (ROI) and annualized return.📉 年复合增长率 CAGRCAGR Calculatorcagr-calculator 计算年均复合增长率 CAGR;结束值留空并填写目标 CAGR,可反推目标结束值。 Calculate compound annual growth rate (CAGR) — or leave the end value blank and enter a target CAGR to get the end value.🏷️ 折扣计算器Discount Calculatordiscount-calculator 计算打折后价格和节省金额,支持打几折(中文)和百分比折扣、满减。 Calculate sale price and savings from a percent discount (or Chinese 'X 折').🧾 小费 / AA 分账计算器Tip & Split Bill Calculatortip-calculator 计算小费金额并平均分摊账单,适合聚餐 AA 和出国旅游。 Calculate tip and split the bill among people.🧮 增值税 / 含税价计算器VAT / Sales Tax Calculatorvat-calculator 计算含税价和不含税价:加税或去税,支持 13%、9%、6% 等增值税率。 Add or remove VAT/sales tax: compute net, tax and gross amounts.🧧 个人所得税计算器China Income Tax Calculatorchina-income-tax-calculator 2026 中国个税计算器:输入月薪、五险一金和专项附加扣除,计算每月个税和税后工资(累计预扣法)。 Chinese individual income tax calculator (cumulative withholding): monthly tax and take-home pay.🎈 通货膨胀计算器Inflation Calculatorinflation-calculator 按年通胀率计算未来购买力:今天的钱 N 年后值多少,或未来需要多少钱。 See how inflation erodes purchasing power over time.⚖️ 盈亏平衡点计算器Break-even Calculatorbreak-even-calculator 计算盈亏平衡点:需要卖出多少件产品才能覆盖固定成本。 Calculate the break-even point in units and revenue.💰 利润率计算器Profit Margin Calculatorprofit-margin-calculator 根据成本和售价计算毛利、毛利率和加价率,或根据目标利润率反推售价。 Calculate profit, margin and markup from cost and price — or price from a target margin.💳 信用卡还款计算器Credit Card Payoff Calculatorcredit-card-payoff-calculator 计算按月固定还款多久能还清信用卡欠款,以及总利息。 How long to pay off a credit card balance with a fixed monthly payment, and total interest.🏭 折旧计算器Depreciation Calculatordepreciation-calculator 计算资产折旧:直线法、双倍余额递减法,生成每年折旧表。 Calculate asset depreciation (straight-line or double-declining) with a yearly schedule.🕒 时薪月薪年薪换算Salary Converter (Hourly ↔ Annual)salary-converter 时薪、日薪、周薪、月薪、年薪互相换算,可设置每周工时和工作日。 Convert between hourly, daily, weekly, monthly and annual pay.🏠 提前还款计算器Mortgage Prepayment Calculatormortgage-prepayment-calculator 计算房贷提前还款能省多少利息:缩短年限或减少月供两种方式对比。 See how much interest a mortgage prepayment saves: shorter term vs lower payment.🏡 房贷月供计算器(含税费保险)Mortgage Calculator (PITI)mortgage-calculator 计算美式房贷每月总支出:本息、房产税、房屋保险、PMI 和物业费(PITI)。 Monthly mortgage payment including principal, interest, property tax, insurance, PMI and HOA (PITI).🚗 车贷计算器Car Loan Calculatorcar-loan-calculator 计算汽车贷款月供:车价、首付、旧车置换、销售税、手续费和贷款期限。 Auto loan payment with price, down payment, trade-in, sales tax, fees and term.🏦 组合贷/公积金贷款计算器China Mortgage (Provident Fund & Combination Loan)provident-fund-combination-loan 商业贷款+公积金组合贷款计算,支持等额本息和等额本金,显示首月月供、末月月供和总利息。 China combination mortgage (commercial + housing provident fund), equal installment or equal principal.👴 退休规划计算器Retirement Calculatorretirement-calculator 估算退休时的储蓄总额,并与按 4% 提取规则所需的金额比较,考虑通胀。 Project your retirement savings and compare with what you need under the 4% rule, adjusting for inflation.🔥 FIRE 财务自由计算器FIRE Calculator (Financial Independence)fire-calculator 计算实现财务自由(FIRE)所需的资产和年数:年支出 ÷ 安全提取率。 How much you need for FIRE and how many years it takes: annual expenses ÷ safe withdrawal rate.📉 负债收入比计算器Debt-to-Income (DTI) Ratio Calculatordebt-to-income-calculator 计算负债收入比(DTI),判断贷款申请时的财务健康程度(36% / 43% 参考线)。 Calculate your debt-to-income ratio and see where you stand against the 36% / 43% lending guidelines.🏘️ 租房还是买房计算器Rent vs Buy Calculatorrent-vs-buy-calculator 比较在一定年限内租房与买房的净成本(含房价涨幅、机会成本、维护费)。 Compare the net cost of renting vs buying over a time horizon, including appreciation and opportunity cost.📈 APR 转 APY 计算器APR to APY Calculatorapy-calculator 把名义年利率(APR)换算为实际年收益率(APY/EAR),支持不同复利频率,以及反向换算。 Convert APR to APY (effective annual rate) for any compounding frequency, and back.⏪ 现值计算器Present Value Calculatorpresent-value-calculator 计算未来一笔钱或一系列等额收付款在今天的价值(折现)。 Discount a future amount or a series of equal payments to its present value.⏩ 终值计算器Future Value Calculatorfuture-value-calculator 计算一次性投入和定期定额投入在未来的价值,支持期初/期末付款。 Future value of a lump sum plus regular payments, with payments at the beginning or end of each period.💹 NPV / IRR 计算器NPV & IRR Calculatornpv-irr-calculator 输入各期现金流,计算净现值(NPV)、内部收益率(IRR)和盈利指数。 Calculate net present value (NPV), internal rate of return (IRR) and profitability index from cash flows.⏳ 投资回收期计算器Payback Period Calculatorpayback-period-calculator 根据初始投资和每期现金流计算静态回收期和动态(折现)回收期。 Simple and discounted payback period from an initial investment and periodic cash flows.💵 股息率计算器Dividend Yield Calculatordividend-yield-calculator 计算股息率、年股息收入和派息率,可估算达到目标股息收入所需的持股数量。 Dividend yield, annual dividend income, payout ratio and shares needed for a target income.📊 股票补仓成本计算器Stock Average Cost Calculatorstock-average-cost-calculator 多次买入后计算持仓平均成本(摊薄成本),输入现价可看浮动盈亏。 Average cost per share after multiple buys, with unrealized profit/loss at the current price.🇨🇳 A股交易费用计算器China A-Share Trading Fee Calculatora-share-trading-fee-calculator 计算 A 股买卖的佣金、印花税(卖出 0.05%)、过户费和净盈亏,以及保本卖出价。 China A-share fees: commission, stamp duty (0.05% on sells), transfer fee, net profit and break-even price.🏷️ 加价率计算器Markup Calculatormarkup-calculator 根据成本和加价率计算售价,或根据成本和售价计算加价率与毛利率,并互相换算。 Selling price from cost and markup, or markup and margin from cost and price.🧧 年终奖个税计算器China Year-End Bonus Tax Calculatoryear-end-bonus-tax-calculator 按全年一次性奖金单独计税方法计算年终奖个人所得税和税后金额,提示“多发一元多缴税”区间。 China annual one-off bonus tax under the separate-taxation method, with the 'tax trap' ranges flagged.🛡️ 五险一金计算器China Social Insurance & Housing Fund Calculatorsocial-insurance-calculator 按缴费基数和比例计算个人和单位缴纳的养老、医疗、失业、工伤、生育保险和住房公积金。 China 'five insurances and one fund' contributions for employee and employer, by contribution base and rates.7️⃣ 72 法则计算器Rule of 72 Calculatorrule-of-72-calculator 用 72 法则快速估算资金翻倍所需年数,并与精确值比较;或由年数反推所需收益率。 Estimate years to double your money with the Rule of 72, compared with the exact figure, or the rate needed.🤝 提成/佣金计算器Commission Calculatorcommission-calculator 按固定比例或阶梯比例计算销售提成,加上底薪得出总收入。 Sales commission with a flat rate or tiered rates, plus base salary.🛒 单价比较计算器(哪个更划算)Unit Price Comparisonunit-price-comparison 比较不同包装/规格商品的单价,找出最划算的选择。 Compare unit prices across package sizes to find the best deal.🧾 50/30/20 预算计算器50/30/20 Budget Calculatorbudget-calculator 按 50/30/20 法则把税后收入分为必要开支、想要开支和储蓄,比例可自定义。 Split take-home pay into needs, wants and savings with the 50/30/20 rule (adjustable).💡 电费计算器(电器耗电)Electricity Cost Calculatorelectricity-cost-calculator 根据电器功率、每天使用时长和电价,计算每天、每月、每年的耗电量(度)和电费。 Energy use (kWh) and cost per day, month and year from appliance wattage, hours of use and price.🧑💻 自由职业时薪计算器Freelance Hourly Rate Calculatorfreelance-hourly-rate-calculator 根据目标年收入、业务开支、税率、假期和可计费工时,算出你应该收取的时薪和日薪。 Work out your freelance hourly and day rate from target income, expenses, tax, vacation and billable hours.⛽ 油费计算器(自驾)Trip Fuel Cost Calculatortrip-fuel-cost-calculator 根据里程、百公里油耗和油价计算自驾油费,并可按人数 AA 分摊。 Fuel cost for a road trip from distance, consumption and fuel price, split between passengers.⏰ 加班费计算器China Overtime Pay Calculatorovertime-pay-calculator 按中国劳动法计算加班费:工作日 1.5 倍、休息日 2 倍、法定节假日 3 倍,日工资按月薪 ÷ 21.75。 China overtime pay: 150% on workdays, 200% on rest days, 300% on public holidays; daily wage = monthly ÷ 21.75.📤 经济补偿金计算器(N+1)China Severance Pay Calculator (N, N+1, 2N)severance-pay-calculator 按《劳动合同法》计算离职经济补偿金 N、N+1 和违法解除赔偿金 2N,考虑高收入封顶。 China severance under the Labor Contract Law: N, N+1 and 2N, including the high-earner cap.
查看全部 45 个金融理财 →See all 45 finance →❤️ 健康健身Health & Fitness 全部 28 →All 28 →
⚖️ BMI 计算器BMI Calculatorbmi-calculator 在线计算身体质量指数 BMI,按中国标准和 WHO 标准判断偏瘦、正常、超重或肥胖。 Calculate Body Mass Index and see your weight category.🔥 基础代谢率 BMR 计算器BMR Calculatorbmr-calculator 用 Mifflin-St Jeor 公式计算基础代谢率(每天静息消耗的热量)。 Calculate your basal metabolic rate with the Mifflin-St Jeor equation.🍎 每日热量需求 TDEE 计算器Calorie Calculator (TDEE)calorie-calculator 根据年龄、身高、体重和活动量计算每日总热量消耗 TDEE,以及减脂/增肌热量建议。 Calculate daily calorie needs (TDEE) and targets for weight loss or gain.📏 体脂率计算器Body Fat Calculatorbody-fat-calculator 用美国海军公式通过身高、腰围、颈围(女性加臀围)估算体脂率。 Estimate body fat % with the U.S. Navy method (height, waist, neck, hip).🧍 理想体重计算器Ideal Weight Calculatorideal-weight-calculator 根据身高和性别,用多种公式(Devine、Robinson、Miller)和健康 BMI 范围计算理想体重。 Ideal body weight by height and sex using Devine, Robinson, Miller formulas and healthy BMI range.💧 每日饮水量计算器Water Intake Calculatorwater-intake-calculator 根据体重和运动时间计算每天应该喝多少水。 How much water should you drink per day, based on weight and exercise.🤰 预产期计算器Pregnancy Due Date Calculatordue-date-calculator 根据末次月经日期计算预产期、当前孕周和重要产检时间。 Calculate your due date and current pregnancy week from the last menstrual period.🌸 排卵期计算器Ovulation Calculatorovulation-calculator 根据月经周期计算排卵日、易孕期和未来几个月的预测。 Predict ovulation day and fertile window for the next cycles.❤️ 心率区间计算器Heart Rate Zone Calculatorheart-rate-zones 用 Karvonen 公式根据年龄和静息心率计算最大心率和 5 个训练心率区间。 Calculate max heart rate and 5 training zones (Karvonen method).⏳ 腰臀比计算器Waist-to-Hip Ratio Calculatorwaist-hip-ratio 计算腰臀比(WHR),按 WHO 标准评估健康风险。 Calculate waist-to-hip ratio and health risk per WHO guidelines.😴 睡眠周期计算器Sleep Calculatorsleep-calculator 按 90 分钟睡眠周期计算最佳入睡或起床时间,醒来不困。 Find the best time to sleep or wake up based on 90-minute sleep cycles.🏃 跑步配速计算器Running Pace Calculatorpace-calculator 根据距离和用时计算跑步配速(分钟/公里)、速度,并预测 5K、10K、半马、全马成绩。 Calculate running pace (min/km), speed and predict 5K/10K/half/marathon times.🥩 蛋白质摄入量计算器Protein Intake Calculatorprotein-intake-calculator 根据体重和目标(久坐、健身、增肌、减脂)计算每天需要的蛋白质克数。 Daily protein needs by body weight and goal (sedentary, fitness, muscle gain, fat loss).🚴 运动消耗热量计算器Calories Burned Calculatorcalories-burned-calculator 根据运动类型(MET 值)、体重和时长计算运动消耗的卡路里。 Estimate calories burned by activity (MET), body weight and duration.💪 瘦体重计算器Lean Body Mass Calculatorlean-body-mass-calculator 用 Boer、James、Hume 公式估算瘦体重(去脂体重)和体脂比例。 Estimate lean body mass with the Boer, James and Hume formulas.🧍 体表面积计算器Body Surface Area (BSA) Calculatorbody-surface-area-calculator 用 Mosteller、DuBois、Haycock 公式计算体表面积(m²),常用于药物剂量计算。 Body surface area (m²) by Mosteller, DuBois and Haycock — used for drug dosing.🏋️ 1RM 最大重量计算器One Rep Max (1RM) Calculatorone-rep-max-calculator 根据训练重量和次数估算单次最大重量(1RM),并给出各百分比训练重量表。 Estimate your one-rep max from weight × reps (Epley, Brzycki, Lombardi) with a percentage table.🥗 三大营养素计算器Macro Calculatormacro-calculator 根据每日热量和饮食类型计算蛋白质、碳水化合物、脂肪的克数。 Daily protein, carb and fat grams from your calorie target and diet style.🍺 血液酒精浓度计算器Blood Alcohol (BAC) Calculatorblood-alcohol-calculator 用 Widmark 公式估算血液酒精浓度(BAC)和大约多久可以代谢完毕。仅供参考,酒后切勿驾车。 Estimate blood alcohol concentration with the Widmark formula and time until sober. Never drink and drive.👣 步数换算公里计算器Steps to Distance Calculatorsteps-to-km-calculator 根据身高估算步幅,把步数换算为公里/英里,并估算消耗热量。 Convert steps to kilometers/miles using a height-based stride length, with estimated calories.🫁 最大摄氧量计算器(Cooper 测试)VO2 Max Calculator (Cooper Test)vo2-max-calculator 根据 12 分钟跑距离(Cooper 测试)估算最大摄氧量 VO2max。 Estimate VO2 max from the distance covered in a 12-minute run (Cooper test).🧒 孩子身高预测Child Adult Height Predictorchild-height-predictor 根据父母身高用遗传身高公式(中位亲代身高法)预测孩子成年身高范围。 Predict a child's adult height range from parents' heights (mid-parental method).🩺 血压水平判断Blood Pressure Category Checkerblood-pressure-checker 输入收缩压/舒张压,按 AHA 2017 和中国高血压指南判断血压分级。 Classify your blood pressure by the AHA 2017 guideline and the Chinese hypertension guideline.📏 腰高比计算器Waist-to-Height Ratio Calculatorwaist-to-height-ratio 计算腰围身高比(WHtR),评估腹部肥胖风险,0.5 为常用健康界线。 Waist-to-height ratio (WHtR) for central obesity risk; 0.5 is the common cut-off.🏃 跑步成绩预测Race Time Predictorrace-time-predictor 用 Riegel 公式根据已知比赛成绩预测其他距离(5K、10K、半马、全马)的完赛时间。 Predict 5K, 10K, half and full marathon times from a known result using Riegel's formula.🚭 吸烟花费计算器(戒烟省钱)Smoking Cost Calculatorsmoking-cost-calculator 计算吸烟每月、每年和多年来的花费,以及戒烟后能省下的钱。 How much smoking costs per month, year and over the years — and what quitting saves.🤰 孕期体重增长计算器Pregnancy Weight Gain Calculatorpregnancy-weight-gain-calculator 根据孕前 BMI 和 IOM 指南计算孕期建议增重范围及当前孕周的参考增重。 Recommended pregnancy weight gain by pre-pregnancy BMI (IOM guidelines), with the target for your week.🦾 FFMI 去脂体重指数FFMI Calculator (Fat-Free Mass Index)ffmi-calculator 根据身高、体重和体脂率计算去脂体重指数 FFMI 和标准化 FFMI,评估肌肉量。 Fat-free mass index (FFMI) and normalized FFMI from height, weight and body fat %.
查看全部 28 个健康健身 →See all 28 health & fitness →➗ 数学工具Math 全部 48 →All 48 →
% 百分比计算器Percentage Calculatorpercentage-calculator 在线百分比计算:求某数的百分之几、占比多少、涨跌幅百分比。 Calculate X% of Y, what percent X is of Y, and percentage change.🔢 进制转换Number Base Converternumber-base-converter 在线进制转换:二进制、八进制、十进制、十六进制及任意 2–36 进制互转,支持大数。 Convert numbers between binary, octal, decimal, hex and any base 2–36 (big numbers supported).➗ 分数计算器Fraction Calculatorfraction-calculator 分数加减乘除计算,自动约分,显示带分数和小数结果。 Add, subtract, multiply and divide fractions with simplification, mixed numbers and decimals.📐 一元二次方程求解Quadratic Equation Solverquadratic-equation-solver 求解 ax²+bx+c=0,给出实数或复数根、判别式、顶点和对称轴。 Solve ax²+bx+c=0 with real or complex roots, discriminant and vertex.🔗 最大公约数/最小公倍数GCD & LCM Calculatorgcd-lcm-calculator 计算多个整数的最大公约数(GCD)和最小公倍数(LCM),支持大数。 Find the greatest common divisor and least common multiple of several integers (big numbers OK).🔍 质数判断与分解质因数Prime Checker & Factorizationprime-factorization 判断一个数是否为质数,并分解质因数,显示所有因数。 Check if a number is prime, factorize it and list all divisors.🔢 质数表生成器Prime Number List Generatorprime-number-generator 列出指定范围内的所有质数(埃拉托斯特尼筛法),统计个数。 List all prime numbers in a range using the Sieve of Eratosthenes.❗ 阶乘计算器Factorial Calculatorfactorial-calculator 计算 n!(支持到 5000!,大数精确结果),显示位数和末尾零个数。 Calculate n! exactly (up to 5000!) with digit count and trailing zeros.🎰 排列组合计算器Permutation & Combination Calculatorpermutation-combination-calculator 计算排列数 nPr、组合数 nCr,以及可重复排列和可重复组合。 Compute permutations nPr, combinations nCr, and with-repetition variants.📈 统计计算器(平均数/中位数/标准差)Statistics Calculator (Mean, Median, SD)statistics-calculator 输入一组数据,计算平均数、中位数、众数、方差、标准差、四分位数等。 Compute mean, median, mode, variance, standard deviation, quartiles and more.🔬 科学计数法转换Scientific Notation Converterscientific-notation-converter 数字与科学计数法、E 记数法、工程计数法互相转换。 Convert numbers to scientific, E and engineering notation and back.🏛️ 罗马数字转换Roman Numeral Converterroman-numeral-converter 阿拉伯数字与罗马数字互相转换(1–3999),自动识别输入。 Convert between Arabic numbers and Roman numerals (1–3999), auto-detected.🔤 数字转英文单词Number to Words Converternumber-to-words 把数字转换为英文单词(如 1234 → one thousand two hundred thirty-four),含序数词和支票金额写法。 Convert numbers to English words, ordinals and check-writing format.🔢 数字千分位格式化Number Formatter (Thousands Separator)number-formatter 给数字添加千分位分隔符,按不同国家格式显示,以及万/亿和 K/M/B 缩写。 Format numbers with thousands separators, locale styles, and compact forms (K/M/B, 万/亿).⚖️ 比例计算器Ratio Calculatorratio-calculator 解比例方程 A:B = C:X,化简比例,按比例缩放尺寸(如 16:9)。 Solve A:B = C:X, simplify ratios and scale dimensions (e.g. 16:9).📐 勾股定理计算器Pythagorean Theorem Calculatorpythagorean-theorem-calculator 已知直角三角形任意两边,求第三边(a² + b² = c²),以及面积和角度。 Find the missing side of a right triangle (a² + b² = c²), plus area and angles.🔺 三角形计算器Triangle Calculatortriangle-calculator 已知三条边求三角形面积(海伦公式)、周长、三个角和类型。 Find triangle area (Heron's formula), perimeter, angles and type from three sides.⭕ 圆计算器Circle Calculatorcircle-calculator 输入半径、直径、周长或面积中的任意一个,计算圆的其余参数。 Enter radius, diameter, circumference or area to get the rest.🧊 体积计算器Volume Calculatorvolume-calculator 计算立方体、长方体、球体、圆柱、圆锥、棱锥的体积和表面积。 Calculate volume and surface area of cube, box, sphere, cylinder, cone and pyramid.⬛ 面积计算器Area Calculatorarea-calculator 计算矩形、三角形、圆、梯形、椭圆、平行四边形等常见图形面积。 Calculate the area of rectangles, triangles, circles, trapezoids, ellipses and parallelograms.📊 对数计算器Logarithm Calculatorlogarithm-calculator 计算任意底数的对数 logₐ(x),以及自然对数 ln、常用对数 lg 和 log₂。 Calculate logarithms in any base, plus ln, log₁₀ and log₂.√ 幂与开方计算器Exponent & Root Calculatorexponent-root-calculator 计算 x 的 y 次方和 x 的 n 次方根,大整数幂精确计算。 Compute x to the power y and the nth root of x (exact big-integer powers).🎯 四舍五入计算器Rounding Calculatorrounding-calculator 按小数位或有效数字四舍五入,支持银行家舍入(四舍六入五成双)、向上、向下取整。 Round numbers by decimals or significant figures: half-up, half-even (banker's), ceil, floor, truncate.⚖️ 加权平均数计算器Weighted Average Calculatorweighted-average-calculator 输入数值和权重,计算加权平均数,可用于计算学分绩点和综合评分。 Calculate a weighted average from values and weights (grades, scores, portfolios).🔢 矩阵计算器Matrix Calculatormatrix-calculator 计算方阵的行列式、逆矩阵、转置和秩(最大 6×6)。 Compute determinant, inverse, transpose and rank of a square matrix (up to 6×6).🐚 斐波那契数列计算器Fibonacci Calculatorfibonacci-calculator 计算第 n 个斐波那契数(大数精确),并列出前 n 项数列。 Get the nth Fibonacci number (exact big integers) and list the sequence.🍰 小数转分数Decimal to Fraction Converterdecimal-to-fraction 把小数精确转换为最简分数(有限小数按 10ⁿ 约分),也可用近似模式把循环小数/无理数近似为分数,支持百分数。 Convert decimals to exact simplest fractions (finite decimals via 10ⁿ), or approximate repeating decimals with a max denominator.🧮 线性方程组求解System of Linear Equations Solverlinear-equation-solver 求解一元到六元一次方程组(高斯消元),每行输入一个方程的系数。 Solve 1×1 up to 6×6 systems of linear equations (Gaussian elimination).💻 二进制/十六进制计算器Binary & Hex Calculatorbinary-calculator 在二进制、八进制、十六进制下做加减乘除和位运算(AND、OR、XOR、移位)。 Arithmetic and bitwise operations (AND, OR, XOR, shifts) in binary, octal or hex.📐 Z 分数计算器Z-Score Calculatorz-score-calculator 根据数值、平均值和标准差计算 Z 分数,以及对应的百分位和左右尾概率。 Z-score from value, mean and standard deviation, with percentile and tail probabilities.🎲 二项分布概率计算器Binomial Probability Calculatorbinomial-probability-calculator 计算 n 次独立试验中恰好、至多、至少成功 k 次的概率,以及期望和方差。 Probability of exactly, at most and at least k successes in n trials, plus mean and variance.🔔 正态分布计算器Normal Distribution Calculatornormal-distribution-calculator 计算正态分布在区间 [a, b] 内的概率、累积概率,以及给定概率对应的分位数。 Probability between a and b for a normal distribution, cumulative probabilities and inverse (quantile).📏 置信区间计算器Confidence Interval Calculatorconfidence-interval-calculator 根据样本均值、标准差和样本量计算均值的置信区间(使用 t 分布)。 Confidence interval for a mean from sample mean, standard deviation and size (Student's t-distribution).👥 样本量计算器Sample Size Calculatorsample-size-calculator 计算调查所需样本量:置信水平、误差范围、预期比例和总体规模(有限总体修正)。 Survey sample size from confidence level, margin of error, expected proportion and population size.📈 线性回归计算器Linear Regression Calculatorlinear-regression-calculator 输入 x、y 数据对,计算最小二乘回归直线 y = a + bx、相关系数 r 和决定系数 R²,可做预测。 Least-squares regression line y = a + bx, correlation r and R² from x/y pairs, with prediction.🔢 有效数字计算器Significant Figures Calculatorsignificant-figures-calculator 统计一个数的有效数字位数,并按指定有效数字位数进行四舍五入(含科学计数法)。 Count significant figures in a number and round it to a chosen number of sig figs.➗ 竖式除法计算器(带步骤)Long Division Calculator (with steps)long-division-calculator 整数长除法,显示商、余数和每一步竖式计算过程,适合小学生学习。 Integer long division showing quotient, remainder and every step — great for learning.🔁 取模/取余计算器Modulo Calculatormodulo-calculator 计算 a mod n 的三种定义:向下取整(floor,结果与 n 同号,Python 的 %)、截断(truncated,结果与 a 同号,JS/C/Java 的 %)和欧几里得(结果总是非负),并给出对应的商,支持大整数。 a mod n under three definitions — floored (sign of n, Python %), truncated (sign of a, JS/C/Java %) and Euclidean (always non-negative) — each with its matching quotient; BigInt supported.🔣 大数计算器Big Number Calculatorbig-number-calculator 任意精度整数计算:加、减、乘、除、取余、乘方、阶乘,结果不丢失精度(BigInt)。 Arbitrary-precision integer arithmetic: + − × ÷ mod, power and factorial without losing digits (BigInt).📍 两点距离/中点/斜率计算器Distance, Midpoint & Slope Calculatorcoordinate-geometry-calculator 输入平面上两点坐标,计算距离、中点、斜率、倾斜角和直线方程。 Distance, midpoint, slope, angle and line equation between two points.🎯 百分比误差计算器Percent Error Calculatorpercent-error-calculator 计算测量值与真实值之间的绝对误差、相对误差和百分比误差。 Absolute, relative and percent error between a measured and a true value.🔍 数字性质查询Number Properties Checkernumber-properties-checker 查看一个整数的各种性质:奇偶、质数、完全数、平方数、因数个数、数字和、二进制等。 See an integer's properties: parity, prime, perfect, square, divisors, digit sum, binary and more.✖️ 乘法表生成器(九九乘法表)Multiplication Table Generatormultiplication-table 生成九九乘法表或任意范围的乘法表,可打印,适合小学生练习。 Generate a 9×9 or any-size multiplication table, printable for kids.∑ 等差/等比数列求和Arithmetic & Geometric Series Calculatorseries-sum-calculator 计算等差数列和等比数列的第 n 项与前 n 项和,以及无穷等比级数的和。 nth term and sum of the first n terms of arithmetic and geometric series, plus infinite geometric sums.ℂ 复数计算器Complex Number Calculatorcomplex-number-calculator 复数加减乘除、模、辐角、共轭和极坐标形式,输入格式如 3+4i。 Add, subtract, multiply and divide complex numbers; modulus, argument, conjugate and polar form.➡️ 向量计算器Vector Calculatorvector-calculator 二维/三维向量的加减、点积、叉积、模长和夹角计算,输入如 1,2,3。 2D/3D vectors: sum, difference, dot product, cross product, magnitude and angle. Input like 1,2,3.📊 百分位数计算器Percentile Calculatorpercentile-calculator 计算数据集的任意百分位数、四分位数(Q1/Q2/Q3)和四分位距,或求某个值的百分位排名。 Any percentile, quartiles (Q1/Q2/Q3) and IQR of a data set, or the percentile rank of a value.🌀 黄金比例计算器Golden Ratio Calculatorgolden-ratio-calculator 按黄金比例 φ ≈ 1.618 计算长边、短边和总长,常用于设计排版和摄影构图。 Split or extend a length by the golden ratio φ ≈ 1.618 — handy for design and layout.
查看全部 48 个数学工具 →See all 48 math →🔬 科学与工程Science & Engineering 全部 17 →All 17 →
⚡ 欧姆定律计算器Ohm's Law Calculatorohms-law-calculator 填写电压、电流、电阻、功率中的任意两个,计算其余两个(V=IR,P=VI)。 Enter any two of voltage, current, resistance and power to get the other two (V = IR, P = VI).🌈 色环电阻计算器Resistor Color Code Calculatorresistor-color-code-calculator 选择 4 环或 5 环电阻的颜色,计算阻值、误差范围,并显示色环图示。 Pick the bands of a 4- or 5-band resistor to get resistance and tolerance, with a drawing.🔋 分压电路计算器Voltage Divider Calculatorvoltage-divider-calculator 计算电阻分压电路的输出电压:Vout = Vin × R2 / (R1 + R2),以及电流和功耗。 Output voltage of a resistor divider: Vout = Vin × R2 / (R1 + R2), plus current and power.💡 LED 限流电阻计算器LED Resistor Calculatorled-resistor-calculator 根据电源电压、LED 正向电压和电流计算限流电阻值、功率,并推荐 E24 标准阻值。 Current-limiting resistor for LEDs from supply voltage, forward voltage and current, with the nearest E24 value.🚀 速度距离时间计算器Speed, Distance & Time Calculatorspeed-distance-time-calculator 填写速度、距离、时间中的任意两个,计算第三个。 Enter any two of speed, distance and time to calculate the third.🧊 密度质量体积计算器Density, Mass & Volume Calculatordensity-calculator 填写密度、质量、体积中的任意两个,计算第三个(ρ = m / V),并对照常见物质密度。 Enter any two of density, mass and volume to find the third (ρ = m/V), with common material densities.🎢 动能势能计算器Kinetic & Potential Energy Calculatorkinetic-potential-energy-calculator 计算物体的动能(½mv²)和重力势能(mgh),以及从该高度落下时的着地速度。 Kinetic energy (½mv²), gravitational potential energy (mgh) and impact speed from that height.🎯 抛体运动计算器Projectile Motion Calculatorprojectile-motion-calculator 根据初速度、发射角和初始高度计算射程、最大高度和飞行时间(忽略空气阻力)。 Range, maximum height and flight time from launch speed, angle and height (no air resistance).☢️ 半衰期计算器Half-Life Calculatorhalf-life-calculator 计算放射性衰变后剩余量:N = N₀ × (1/2)^(t/T),或由剩余比例反推经过时间。 Remaining quantity after decay, N = N₀ × (½)^(t/T), or the time elapsed from the remaining fraction.🧪 摩尔质量计算器Molar Mass Calculatormolar-mass-calculator 输入化学式(如 H2O、Ca(OH)2、CuSO4·5H2O),计算摩尔质量和各元素质量分数。 Molar mass and element mass percentages from a chemical formula like H2O, Ca(OH)2 or CuSO4·5H2O.🎈 理想气体状态方程计算器Ideal Gas Law Calculatorideal-gas-law-calculator PV = nRT:填写压强、体积、物质的量、温度中的三个,计算第四个。 PV = nRT: enter three of pressure, volume, moles and temperature to solve for the fourth.🌊 波长频率能量换算Wavelength, Frequency & Photon Energywavelength-frequency-calculator 电磁波波长、频率和光子能量互算(c = λf,E = hf),并显示所属波段。 Convert between wavelength, frequency and photon energy (c = λf, E = hf) and show the band.⚗️ 溶液稀释计算器(C1V1=C2V2)Dilution Calculator (C1V1 = C2V2)dilution-calculator 按 C1V1 = C2V2 计算溶液稀释所需体积:留空一个值即可求解。 Solve C1V1 = C2V2 for any one unknown — how much stock and diluent to use.🧫 pH 值计算器pH Calculatorph-calculator 由氢离子浓度 [H⁺]、氢氧根浓度 [OH⁻]、pH 或 pOH 中任意一个,计算其余值(25°C)。 From [H⁺], [OH⁻], pH or pOH, calculate the others (at 25 °C).🪐 在其他星球上的体重Weight on Other Planetsweight-on-planets-calculator 输入你在地球上的体重,看看在月球、火星、木星等星球上有多重。 See what you'd weigh on the Moon, Mars, Jupiter and other planets.🔌 电容代码换算Capacitor Code Calculatorcapacitor-code-calculator 把电容上的 3 位数字代码(如 104、472)换算为 pF/nF/µF,或反向求代码。 Decode 3-digit capacitor codes (e.g. 104, 472) to pF/nF/µF, or find the code for a value.🧵 AWG 线规换算AWG Wire Gauge Converterawg-wire-gauge-converter 美国线规 AWG 与线径(mm)、截面积(mm²)互相换算,并显示参考电阻。 Convert AWG wire gauge to diameter (mm), cross-section (mm²) and resistance per km.
📅 日期时间Date & Time 全部 22 →All 22 →
⏱️ 时间戳转换Unix Timestamp Convertertimestamp-converter Unix 时间戳与日期时间互相转换,支持秒和毫秒,显示本地时间和 UTC。 Convert Unix timestamps (seconds/ms) to dates and back, local and UTC.🎂 年龄计算器Age Calculatorage-calculator 根据出生日期精确计算年龄(岁、月、天)、已活天数和距下次生日天数。 Calculate exact age in years, months and days, plus days until next birthday.📅 日期计算器Date Difference Calculatordate-difference 计算两个日期之间相差多少天、周、月,或计算某日期加减天数后的日期。 Days between two dates, or add/subtract days from a date.🌍 时区转换器Time Zone Convertertimezone-converter 在北京时间、纽约、伦敦、东京等全球时区之间换算时间,自动处理夏令时。 Convert times between world time zones (Beijing, New York, London, Tokyo…) with DST handled.🕰️ 世界时钟World Clockworld-clock 实时显示全球主要城市当前时间和时差:北京、纽约、伦敦、东京、悉尼等。 Live current time and offsets in major cities worldwide.🗓️ 周数计算器(第几周)Week Number Calculatorweek-number-calculator 查询任意日期是今年第几周(ISO 周)、第几天、星期几和第几季度。 Find the ISO week number, day of year, weekday and quarter for any date.💼 工作日计算器Business Days Calculatorbusiness-days-calculator 计算两个日期之间的工作日天数(排除周末和自定义节假日),或某日期加 N 个工作日。 Count working days between dates (excluding weekends and custom holidays), or add N business days.⏱️ 时间间隔计算器Time Duration Calculatortime-duration-calculator 计算两个时间或日期时间之间相差多少小时、分钟、秒,或时间加减。 Calculate the duration between two times or date-times, in hours, minutes and seconds.📆 闰年判断Leap Year Checkerleap-year-checker 判断某一年是否为闰年,并列出前后最近的闰年和该年天数、二月天数。 Check if a year is a leap year and list nearby leap years.⏳ 倒计时(距离某日还有几天)Countdown to Datecountdown-timer 倒计时到任意日期时间:距离春节、高考、生日、考试还有多少天、小时、分钟、秒。 Countdown to any date/time: days, hours, minutes and seconds remaining.⏱️ 在线秒表Online Stopwatchstopwatch 在线秒表计时器,精确到百分之一秒,支持计次(分段)记录。 Online stopwatch with 1/100 s precision and lap times.⏲️ 在线计时器(倒计时提醒)Online Countdown Timeronline-timer 设定分钟和秒的在线倒计时器,时间到响铃提醒,可用于学习、做饭、运动。 Set a countdown timer in minutes/seconds with an alarm sound when time's up.🍅 番茄钟Pomodoro Timerpomodoro-timer 在线番茄工作法计时器:25 分钟专注 + 5 分钟休息,每 4 个番茄长休息,带提醒音。 Pomodoro timer: 25-min focus, 5-min breaks, long break every 4 — with alerts.📅 万年历 / 日历生成Printable Calendar Generatorcalendar-generator 生成任意年份和月份的日历,显示周数和今天,可打印。 Generate a printable calendar for any month and year, with week numbers.📆 星期几查询Day of the Week Calculatorday-of-week-calculator 查询任意日期是星期几,以及该日是一年中的第几天、第几周、第几季度、当月天数。 Find the weekday of any date, plus day of year, ISO week, quarter and days in month.🗂️ 工时计算器(考勤表)Timesheet Calculatortimesheet-calculator 按每天的上下班时间和休息时长统计总工时、加班时长和工资。 Total work hours, overtime and pay from daily clock-in/out times and breaks.🕐 12/24 小时制转换12-Hour ↔ 24-Hour Time Convertertime-format-converter 批量把 12 小时制时间(2:30 PM)与 24 小时制(14:30)互相转换,自动识别。 Convert times between 12-hour (2:30 PM) and 24-hour (14:30) format in bulk, auto-detected.🔭 儒略日转换器Julian Date Converterjulian-date-converter 公历日期时间(UTC)与儒略日(JD)、简化儒略日(MJD)互相转换,天文计算常用。 Convert UTC date/time to Julian Date (JD) and Modified Julian Date (MJD), and back.🌅 日出日落时间计算器Sunrise & Sunset Calculatorsunrise-sunset-calculator 根据经纬度和日期计算日出、日落、正午时间、白昼时长和民用晨昏蒙影时间。 Sunrise, sunset, solar noon, day length and civil twilight from latitude, longitude and date.🌙 月相查询Moon Phase Calculatormoon-phase-calculator 查询任意日期的月相、月龄、月面照明比例,以及下一次满月和新月的大致时间。 Moon phase, age and illumination for any date, with the next full and new moon.📗 Excel 日期序号转换Excel Date Serial Converterexcel-date-converter Excel/WPS 日期序列号(如 46023)与日期互相转换,支持 1900 和 1904 日期系统及时间小数。 Convert Excel/Sheets date serial numbers (e.g. 46023) to dates and back, 1900 or 1904 system.🗓️ 日期格式转换Date Format Converterdate-format-converter 把一个日期时间转换为 ISO 8601、RFC 2822、Unix 时间戳、中文、美式、欧式等多种格式。 Show a date-time in ISO 8601, RFC 2822, Unix timestamp, Chinese, US, European and other formats.
📏 单位换算Unit Converters 全部 19 →All 19 →
📏 单位换算Unit Converterunit-converter 在线单位换算:长度、重量、面积、体积、温度、速度、数据大小,含市制单位(斤、亩、尺)。 Convert length, weight, area, volume, temperature, speed and data units.📏 长度单位换算Length Converterlength-converter 米、厘米、毫米、公里、英寸、英尺、码、英里、海里、市尺、里等长度单位在线换算。 Convert meters, cm, mm, km, inches, feet, yards, miles, nautical miles and Chinese units.⚖️ 重量单位换算Weight Converterweight-converter 千克、克、斤、两、吨、磅、盎司、克拉等重量单位在线换算。 Convert kg, g, tonnes, pounds, ounces, stones, carats and Chinese jin/liang.🌡️ 温度单位换算Temperature Convertertemperature-converter 摄氏度、华氏度、开尔文、兰氏度互相换算。 Convert Celsius, Fahrenheit, Kelvin and Rankine.🟩 面积单位换算Area Converterarea-converter 平方米、平方公里、公顷、亩、平方英尺、英亩等面积单位换算。 Convert square meters, km², hectares, acres, square feet and Chinese mu.🧴 体积/容积单位换算Volume Convertervolume-converter 升、毫升、立方米、加仑、夸脱、品脱、杯、液量盎司等体积单位换算。 Convert liters, milliliters, cubic meters, gallons, quarts, pints, cups and fluid ounces.🚀 速度单位换算Speed Converterspeed-converter 公里/小时、米/秒、英里/小时、节、马赫、光速等速度单位换算。 Convert km/h, m/s, mph, knots, Mach and more.💾 数据存储单位换算Data Storage Converterdata-storage-converter 字节、KB、MB、GB、TB、PB 以及 KiB/MiB/GiB(1024 进制)与 1000 进制互相换算。 Convert bytes, KB/MB/GB/TB (decimal) and KiB/MiB/GiB/TiB (binary).⌛ 时间单位换算Time Unit Convertertime-unit-converter 秒、分钟、小时、天、周、月、年、毫秒、微秒等时间单位换算。 Convert seconds, minutes, hours, days, weeks, months, years, ms and µs.🎈 压力单位换算Pressure Converterpressure-converter 帕、千帕、兆帕、巴、标准大气压、psi、毫米汞柱等压力单位换算。 Convert Pa, kPa, MPa, bar, atm, psi, mmHg and more.⚡ 能量单位换算Energy Converterenergy-converter 焦耳、千焦、卡路里、千卡、千瓦时、电子伏特、英热单位等能量单位换算。 Convert joules, kJ, calories, kcal, kWh, eV, BTU and more.🔌 功率单位换算Power Converterpower-converter 瓦、千瓦、兆瓦、马力(公制/英制)、BTU/小时等功率单位换算。 Convert watts, kW, MW, horsepower (metric/imperial) and BTU/h.📐 角度单位换算Angle Converterangle-converter 角度、弧度、梯度、角分、角秒、圈之间换算。 Convert degrees, radians, gradians, arcminutes, arcseconds and turns.📶 频率单位换算Frequency Converterfrequency-converter 赫兹、千赫、兆赫、吉赫、每分钟转数(RPM)等频率单位换算。 Convert Hz, kHz, MHz, GHz, THz and RPM.💪 力单位换算Force Converterforce-converter 牛顿、千牛、公斤力、磅力、达因等力的单位换算。 Convert newtons, kN, kilogram-force, pound-force and dynes.⛽ 油耗单位换算Fuel Economy Converterfuel-economy-converter 百公里油耗(L/100km)与 英里每加仑(MPG 美制/英制)、公里每升互相换算。 Convert L/100km, km/L and MPG (US/UK).📡 网速单位换算Data Transfer Rate Converterdata-transfer-rate-converter 网速换算:Mbps 与 MB/s 互转,100M 宽带下载速度是多少?bps、Kbps、Gbps、KB/s。 Convert internet speeds: Mbps ↔ MB/s, bps, Kbps, Gbps, KB/s.🍳 烹饪单位换算Cooking Measurement Convertercooking-converter 烘焙/烹饪单位换算:杯、汤匙、茶匙、毫升、液量盎司,看懂国外食谱。 Convert cooking measures: cups, tablespoons, teaspoons, ml and fl oz.👟 鞋码对照换算Shoe Size Convertershoe-size-converter 中国码(脚长 mm)、欧码 EU、美码 US(男/女)、英码 UK 鞋码对照换算。 Convert shoe sizes between CN (mm), EU, US (men/women) and UK.
🔁 常用单位速换Quick Unit Conversions 全部 98 →All 98 →
📏 厘米换算英寸(cm 转 in)Centimeters to Inches Converter (cm to in)cm-to-inches 厘米转换为英寸,输入数值立即得到结果,附换算公式和常用对照表。 Convert centimeters to inches instantly, with the formula and a quick reference table.📏 英寸换算厘米(in 转 cm)Inches to Centimeters Converter (in to cm)inches-to-cm 英寸转换为厘米,输入数值立即得到结果,附换算公式和常用对照表。 Convert inches to centimeters instantly, with the formula and a quick reference table.📏 毫米换算英寸(mm 转 in)Millimeters to Inches Converter (mm to in)mm-to-inches 毫米转换为英寸,输入数值立即得到结果,附换算公式和常用对照表。 Convert millimeters to inches instantly, with the formula and a quick reference table.📏 英寸换算毫米(in 转 mm)Inches to Millimeters Converter (in to mm)inches-to-mm 英寸转换为毫米,输入数值立即得到结果,附换算公式和常用对照表。 Convert inches to millimeters instantly, with the formula and a quick reference table.📏 米换算英尺(m 转 ft)Meters to Feet Converter (m to ft)m-to-feet 米转换为英尺,输入数值立即得到结果,附换算公式和常用对照表。 Convert meters to feet instantly, with the formula and a quick reference table.📏 英尺换算米(ft 转 m)Feet to Meters Converter (ft to m)feet-to-m 英尺转换为米,输入数值立即得到结果,附换算公式和常用对照表。 Convert feet to meters instantly, with the formula and a quick reference table.🛣️ 公里换算英里(km 转 mi)Kilometers to Miles Converter (km to mi)km-to-miles 公里转换为英里,输入数值立即得到结果,附换算公式和常用对照表。 Convert kilometers to miles instantly, with the formula and a quick reference table.🛣️ 英里换算公里(mi 转 km)Miles to Kilometers Converter (mi to km)miles-to-km 英里转换为公里,输入数值立即得到结果,附换算公式和常用对照表。 Convert miles to kilometers instantly, with the formula and a quick reference table.📏 英尺换算厘米(ft 转 cm)Feet to Centimeters Converter (ft to cm)feet-to-cm 英尺转换为厘米,输入数值立即得到结果,附换算公式和常用对照表。 Convert feet to centimeters instantly, with the formula and a quick reference table.📏 厘米换算英尺(cm 转 ft)Centimeters to Feet Converter (cm to ft)cm-to-feet 厘米转换为英尺,输入数值立即得到结果,附换算公式和常用对照表。 Convert centimeters to feet instantly, with the formula and a quick reference table.📏 米换算码(m 转 yd)Meters to Yards Converter (m to yd)m-to-yards 米转换为码,输入数值立即得到结果,附换算公式和常用对照表。 Convert meters to yards instantly, with the formula and a quick reference table.📏 码换算米(yd 转 m)Yards to Meters Converter (yd to m)yards-to-m 码转换为米,输入数值立即得到结果,附换算公式和常用对照表。 Convert yards to meters instantly, with the formula and a quick reference table.⚓ 海里换算公里(nmi 转 km)Nautical miles to Kilometers Converter (nmi to km)nautical-miles-to-km 海里转换为公里,输入数值立即得到结果,附换算公式和常用对照表。 Convert nautical miles to kilometers instantly, with the formula and a quick reference table.⚓ 公里换算海里(km 转 nmi)Kilometers to Nautical miles Converter (km to nmi)km-to-nautical-miles 公里转换为海里,输入数值立即得到结果,附换算公式和常用对照表。 Convert kilometers to nautical miles instantly, with the formula and a quick reference table.📐 市尺换算厘米(尺 转 cm)Chi (市尺) to Centimeters Converter (尺 to cm)chi-to-cm 市尺转换为厘米,输入数值立即得到结果,附换算公式和常用对照表。 Convert chi (市尺) to centimeters instantly, with the formula and a quick reference table.📐 厘米换算市尺(cm 转 尺)Centimeters to Chi (市尺) Converter (cm to 尺)cm-to-chi 厘米转换为市尺,输入数值立即得到结果,附换算公式和常用对照表。 Convert centimeters to chi (市尺) instantly, with the formula and a quick reference table.📐 市寸换算厘米(寸 转 cm)Cun (市寸) to Centimeters Converter (寸 to cm)cun-to-cm 市寸转换为厘米,输入数值立即得到结果,附换算公式和常用对照表。 Convert cun (市寸) to centimeters instantly, with the formula and a quick reference table.📐 厘米换算市寸(cm 转 寸)Centimeters to Cun (市寸) Converter (cm to 寸)cm-to-cun 厘米转换为市寸,输入数值立即得到结果,附换算公式和常用对照表。 Convert centimeters to cun (市寸) instantly, with the formula and a quick reference table.⚖️ 千克换算磅(kg 转 lb)Kilograms to Pounds Converter (kg to lb)kg-to-lb 千克转换为磅,输入数值立即得到结果,附换算公式和常用对照表。 Convert kilograms to pounds instantly, with the formula and a quick reference table.⚖️ 磅换算千克(lb 转 kg)Pounds to Kilograms Converter (lb to kg)lb-to-kg 磅转换为千克,输入数值立即得到结果,附换算公式和常用对照表。 Convert pounds to kilograms instantly, with the formula and a quick reference table.⚖️ 克换算盎司(g 转 oz)Grams to Ounces Converter (g to oz)g-to-oz 克转换为盎司,输入数值立即得到结果,附换算公式和常用对照表。 Convert grams to ounces instantly, with the formula and a quick reference table.⚖️ 盎司换算克(oz 转 g)Ounces to Grams Converter (oz to g)oz-to-g 盎司转换为克,输入数值立即得到结果,附换算公式和常用对照表。 Convert ounces to grams instantly, with the formula and a quick reference table.⚖️ 千克换算斤(kg 转 斤)Kilograms to Jin (斤) Converter (kg to 斤)kg-to-jin 千克转换为斤,输入数值立即得到结果,附换算公式和常用对照表。 Convert kilograms to jin (斤) instantly, with the formula and a quick reference table.⚖️ 斤换算千克(斤 转 kg)Jin (斤) to Kilograms Converter (斤 to kg)jin-to-kg 斤转换为千克,输入数值立即得到结果,附换算公式和常用对照表。 Convert jin (斤) to kilograms instantly, with the formula and a quick reference table.⚖️ 英石换算千克(st 转 kg)Stone to Kilograms Converter (st to kg)stone-to-kg 英石转换为千克,输入数值立即得到结果,附换算公式和常用对照表。 Convert stone to kilograms instantly, with the formula and a quick reference table.⚖️ 千克换算英石(kg 转 st)Kilograms to Stone Converter (kg to st)kg-to-stone 千克转换为英石,输入数值立即得到结果,附换算公式和常用对照表。 Convert kilograms to stone instantly, with the formula and a quick reference table.💎 克拉换算克(ct 转 g)Carats to Grams Converter (ct to g)carat-to-g 克拉转换为克,输入数值立即得到结果,附换算公式和常用对照表。 Convert carats to grams instantly, with the formula and a quick reference table.💎 克换算克拉(g 转 ct)Grams to Carats Converter (g to ct)g-to-carat 克转换为克拉,输入数值立即得到结果,附换算公式和常用对照表。 Convert grams to carats instantly, with the formula and a quick reference table.⛽ 升换算美制加仑(L 转 gal)Liters to US gallons Converter (L to gal)liters-to-gallons 升转换为美制加仑,输入数值立即得到结果,附换算公式和常用对照表。 Convert liters to US gallons instantly, with the formula and a quick reference table.⛽ 美制加仑换算升(gal 转 L)US gallons to Liters Converter (gal to L)gallons-to-liters 美制加仑转换为升,输入数值立即得到结果,附换算公式和常用对照表。 Convert US gallons to liters instantly, with the formula and a quick reference table.🧴 毫升换算液量盎司(mL 转 fl oz)Milliliters to US fluid ounces Converter (mL to fl oz)ml-to-fl-oz 毫升转换为液量盎司,输入数值立即得到结果,附换算公式和常用对照表。 Convert milliliters to US fluid ounces instantly, with the formula and a quick reference table.🧴 液量盎司换算毫升(fl oz 转 mL)US fluid ounces to Milliliters Converter (fl oz to mL)fl-oz-to-ml 液量盎司转换为毫升,输入数值立即得到结果,附换算公式和常用对照表。 Convert US fluid ounces to milliliters instantly, with the formula and a quick reference table.🥛 杯(美制)换算毫升(cup 转 mL)US cups to Milliliters Converter (cup to mL)cups-to-ml 杯(美制)转换为毫升,输入数值立即得到结果,附换算公式和常用对照表。 Convert US cups to milliliters instantly, with the formula and a quick reference table.🥛 毫升换算杯(美制)(mL 转 cup)Milliliters to US cups Converter (mL to cup)ml-to-cups 毫升转换为杯(美制),输入数值立即得到结果,附换算公式和常用对照表。 Convert milliliters to US cups instantly, with the formula and a quick reference table.🥄 汤匙换算毫升(tbsp 转 mL)Tablespoons to Milliliters Converter (tbsp to mL)tbsp-to-ml 汤匙转换为毫升,输入数值立即得到结果,附换算公式和常用对照表。 Convert tablespoons to milliliters instantly, with the formula and a quick reference table.🥄 毫升换算汤匙(mL 转 tbsp)Milliliters to Tablespoons Converter (mL to tbsp)ml-to-tbsp 毫升转换为汤匙,输入数值立即得到结果,附换算公式和常用对照表。 Convert milliliters to tablespoons instantly, with the formula and a quick reference table.🥄 茶匙换算毫升(tsp 转 mL)Teaspoons to Milliliters Converter (tsp to mL)tsp-to-ml 茶匙转换为毫升,输入数值立即得到结果,附换算公式和常用对照表。 Convert teaspoons to milliliters instantly, with the formula and a quick reference table.🥄 毫升换算茶匙(mL 转 tsp)Milliliters to Teaspoons Converter (mL to tsp)ml-to-tsp 毫升转换为茶匙,输入数值立即得到结果,附换算公式和常用对照表。 Convert milliliters to teaspoons instantly, with the formula and a quick reference table.📦 立方英尺换算立方米(ft³ 转 m³)Cubic feet to Cubic meters Converter (ft³ to m³)cubic-feet-to-cubic-meters 立方英尺转换为立方米,输入数值立即得到结果,附换算公式和常用对照表。 Convert cubic feet to cubic meters instantly, with the formula and a quick reference table.📦 立方米换算立方英尺(m³ 转 ft³)Cubic meters to Cubic feet Converter (m³ to ft³)cubic-meters-to-cubic-feet 立方米转换为立方英尺,输入数值立即得到结果,附换算公式和常用对照表。 Convert cubic meters to cubic feet instantly, with the formula and a quick reference table.⛽ 英制加仑换算升(imp gal 转 L)UK gallons to Liters Converter (imp gal to L)uk-gallons-to-liters 英制加仑转换为升,输入数值立即得到结果,附换算公式和常用对照表。 Convert UK gallons to liters instantly, with the formula and a quick reference table.⛽ 升换算英制加仑(L 转 imp gal)Liters to UK gallons Converter (L to imp gal)liters-to-uk-gallons 升转换为英制加仑,输入数值立即得到结果,附换算公式和常用对照表。 Convert liters to UK gallons instantly, with the formula and a quick reference table.🌡️ 摄氏度换算华氏度(°C 转 °F)Celsius to Fahrenheit Converter (°C to °F)celsius-to-fahrenheit 摄氏度转换为华氏度,输入数值立即得到结果,附换算公式和常用对照表。 Convert celsius to fahrenheit instantly, with the formula and a quick reference table.🌡️ 华氏度换算摄氏度(°F 转 °C)Fahrenheit to Celsius Converter (°F to °C)fahrenheit-to-celsius 华氏度转换为摄氏度,输入数值立即得到结果,附换算公式和常用对照表。 Convert fahrenheit to celsius instantly, with the formula and a quick reference table.🌡️ 摄氏度换算开尔文(°C 转 K)Celsius to Kelvin Converter (°C to K)celsius-to-kelvin 摄氏度转换为开尔文,输入数值立即得到结果,附换算公式和常用对照表。 Convert celsius to kelvin instantly, with the formula and a quick reference table.🌡️ 开尔文换算摄氏度(K 转 °C)Kelvin to Celsius Converter (K to °C)kelvin-to-celsius 开尔文转换为摄氏度,输入数值立即得到结果,附换算公式和常用对照表。 Convert kelvin to celsius instantly, with the formula and a quick reference table.🌡️ 华氏度换算开尔文(°F 转 K)Fahrenheit to Kelvin Converter (°F to K)fahrenheit-to-kelvin 华氏度转换为开尔文,输入数值立即得到结果,附换算公式和常用对照表。 Convert fahrenheit to kelvin instantly, with the formula and a quick reference table.🌡️ 开尔文换算华氏度(K 转 °F)Kelvin to Fahrenheit Converter (K to °F)kelvin-to-fahrenheit 开尔文转换为华氏度,输入数值立即得到结果,附换算公式和常用对照表。 Convert kelvin to fahrenheit instantly, with the formula and a quick reference table.🏠 平方米换算平方英尺(m² 转 ft²)Square meters to Square feet Converter (m² to ft²)square-meters-to-square-feet 平方米转换为平方英尺,输入数值立即得到结果,附换算公式和常用对照表。 Convert square meters to square feet instantly, with the formula and a quick reference table.🏠 平方英尺换算平方米(ft² 转 m²)Square feet to Square meters Converter (ft² to m²)square-feet-to-square-meters 平方英尺转换为平方米,输入数值立即得到结果,附换算公式和常用对照表。 Convert square feet to square meters instantly, with the formula and a quick reference table.🌾 英亩换算公顷(ac 转 ha)Acres to Hectares Converter (ac to ha)acres-to-hectares 英亩转换为公顷,输入数值立即得到结果,附换算公式和常用对照表。 Convert acres to hectares instantly, with the formula and a quick reference table.🌾 公顷换算英亩(ha 转 ac)Hectares to Acres Converter (ha to ac)hectares-to-acres 公顷转换为英亩,输入数值立即得到结果,附换算公式和常用对照表。 Convert hectares to acres instantly, with the formula and a quick reference table.🗺️ 平方公里换算平方英里(km² 转 mi²)Square kilometers to Square miles Converter (km² to mi²)square-kilometers-to-square-miles 平方公里转换为平方英里,输入数值立即得到结果,附换算公式和常用对照表。 Convert square kilometers to square miles instantly, with the formula and a quick reference table.🗺️ 平方英里换算平方公里(mi² 转 km²)Square miles to Square kilometers Converter (mi² to km²)square-miles-to-square-kilometers 平方英里转换为平方公里,输入数值立即得到结果,附换算公式和常用对照表。 Convert square miles to square kilometers instantly, with the formula and a quick reference table.🌾 亩换算平方米(亩 转 m²)Mu (亩) to Square meters Converter (亩 to m²)mu-to-square-meters 亩转换为平方米,输入数值立即得到结果,附换算公式和常用对照表。 Convert mu (亩) to square meters instantly, with the formula and a quick reference table.🌾 平方米换算亩(m² 转 亩)Square meters to Mu (亩) Converter (m² to 亩)square-meters-to-mu 平方米转换为亩,输入数值立即得到结果,附换算公式和常用对照表。 Convert square meters to mu (亩) instantly, with the formula and a quick reference table.🌾 亩换算公顷(亩 转 ha)Mu (亩) to Hectares Converter (亩 to ha)mu-to-hectares 亩转换为公顷,输入数值立即得到结果,附换算公式和常用对照表。 Convert mu (亩) to hectares instantly, with the formula and a quick reference table.🌾 公顷换算亩(ha 转 亩)Hectares to Mu (亩) Converter (ha to 亩)hectares-to-mu 公顷转换为亩,输入数值立即得到结果,附换算公式和常用对照表。 Convert hectares to mu (亩) instantly, with the formula and a quick reference table.🚗 公里/小时换算英里/小时(km/h 转 mph)km/h to mph Converter (km/h to mph)kmh-to-mph 公里/小时转换为英里/小时,输入数值立即得到结果,附换算公式和常用对照表。 Convert km/h to mph instantly, with the formula and a quick reference table.🚗 英里/小时换算公里/小时(mph 转 km/h)mph to km/h Converter (mph to km/h)mph-to-kmh 英里/小时转换为公里/小时,输入数值立即得到结果,附换算公式和常用对照表。 Convert mph to km/h instantly, with the formula and a quick reference table.⛵ 节换算公里/小时(kn 转 km/h)Knots to km/h Converter (kn to km/h)knots-to-kmh 节转换为公里/小时,输入数值立即得到结果,附换算公式和常用对照表。 Convert knots to km/h instantly, with the formula and a quick reference table.⛵ 公里/小时换算节(km/h 转 kn)km/h to Knots Converter (km/h to kn)kmh-to-knots 公里/小时转换为节,输入数值立即得到结果,附换算公式和常用对照表。 Convert km/h to knots instantly, with the formula and a quick reference table.💨 米/秒换算公里/小时(m/s 转 km/h)m/s to km/h Converter (m/s to km/h)meters-per-second-to-kmh 米/秒转换为公里/小时,输入数值立即得到结果,附换算公式和常用对照表。 Convert m/s to km/h instantly, with the formula and a quick reference table.💨 公里/小时换算米/秒(km/h 转 m/s)km/h to m/s Converter (km/h to m/s)kmh-to-meters-per-second 公里/小时转换为米/秒,输入数值立即得到结果,附换算公式和常用对照表。 Convert km/h to m/s instantly, with the formula and a quick reference table.💾 MB换算GB(MB 转 GB)Megabytes to Gigabytes Converter (MB to GB)mb-to-gb MB转换为GB,输入数值立即得到结果,附换算公式和常用对照表。 Convert megabytes to gigabytes instantly, with the formula and a quick reference table.💾 GB换算MB(GB 转 MB)Gigabytes to Megabytes Converter (GB to MB)gb-to-mb GB转换为MB,输入数值立即得到结果,附换算公式和常用对照表。 Convert gigabytes to megabytes instantly, with the formula and a quick reference table.💾 GB换算TB(GB 转 TB)Gigabytes to Terabytes Converter (GB to TB)gb-to-tb GB转换为TB,输入数值立即得到结果,附换算公式和常用对照表。 Convert gigabytes to terabytes instantly, with the formula and a quick reference table.💾 TB换算GB(TB 转 GB)Terabytes to Gigabytes Converter (TB to GB)tb-to-gb TB转换为GB,输入数值立即得到结果,附换算公式和常用对照表。 Convert terabytes to gigabytes instantly, with the formula and a quick reference table.💾 KB换算MB(KB 转 MB)Kilobytes to Megabytes Converter (KB to MB)kb-to-mb KB转换为MB,输入数值立即得到结果,附换算公式和常用对照表。 Convert kilobytes to megabytes instantly, with the formula and a quick reference table.💾 MB换算KB(MB 转 KB)Megabytes to Kilobytes Converter (MB to KB)mb-to-kb MB转换为KB,输入数值立即得到结果,附换算公式和常用对照表。 Convert megabytes to kilobytes instantly, with the formula and a quick reference table.📶 Mbps(兆比特/秒)换算MB/s(兆字节/秒)(Mbps 转 MB/s)Megabits per second to Megabytes per second Converter (Mbps to MB/s)mbps-to-mb-per-second Mbps(兆比特/秒)转换为MB/s(兆字节/秒),输入数值立即得到结果,附换算公式和常用对照表。 Convert megabits per second to megabytes per second instantly, with the formula and a quick reference table.📶 MB/s(兆字节/秒)换算Mbps(兆比特/秒)(MB/s 转 Mbps)Megabytes per second to Megabits per second Converter (MB/s to Mbps)mb-per-second-to-mbps MB/s(兆字节/秒)转换为Mbps(兆比特/秒),输入数值立即得到结果,附换算公式和常用对照表。 Convert megabytes per second to megabits per second instantly, with the formula and a quick reference table.🍎 千卡(大卡)换算千焦(kcal 转 kJ)Kilocalories to Kilojoules Converter (kcal to kJ)kcal-to-kj 千卡(大卡)转换为千焦,输入数值立即得到结果,附换算公式和常用对照表。 Convert kilocalories to kilojoules instantly, with the formula and a quick reference table.🍎 千焦换算千卡(大卡)(kJ 转 kcal)Kilojoules to Kilocalories Converter (kJ to kcal)kj-to-kcal 千焦转换为千卡(大卡),输入数值立即得到结果,附换算公式和常用对照表。 Convert kilojoules to kilocalories instantly, with the formula and a quick reference table.🔥 英热单位换算千瓦时(度)(BTU 转 kWh)BTU to Kilowatt-hours Converter (BTU to kWh)btu-to-kwh 英热单位转换为千瓦时(度),输入数值立即得到结果,附换算公式和常用对照表。 Convert BTU to kilowatt-hours instantly, with the formula and a quick reference table.🔥 千瓦时(度)换算英热单位(kWh 转 BTU)Kilowatt-hours to BTU Converter (kWh to BTU)kwh-to-btu 千瓦时(度)转换为英热单位,输入数值立即得到结果,附换算公式和常用对照表。 Convert kilowatt-hours to BTU instantly, with the formula and a quick reference table.⚡ 焦耳换算卡路里(J 转 cal)Joules to Calories (small) Converter (J to cal)joules-to-calories 焦耳转换为卡路里,输入数值立即得到结果,附换算公式和常用对照表。 Convert joules to calories (small) instantly, with the formula and a quick reference table.⚡ 卡路里换算焦耳(cal 转 J)Calories (small) to Joules Converter (cal to J)calories-to-joules 卡路里转换为焦耳,输入数值立即得到结果,附换算公式和常用对照表。 Convert calories (small) to joules instantly, with the formula and a quick reference table.🏎️ 马力(英制)换算千瓦(hp 转 kW)Horsepower to Kilowatts Converter (hp to kW)hp-to-kw 马力(英制)转换为千瓦,输入数值立即得到结果,附换算公式和常用对照表。 Convert horsepower to kilowatts instantly, with the formula and a quick reference table.🏎️ 千瓦换算马力(英制)(kW 转 hp)Kilowatts to Horsepower Converter (kW to hp)kw-to-hp 千瓦转换为马力(英制),输入数值立即得到结果,附换算公式和常用对照表。 Convert kilowatts to horsepower instantly, with the formula and a quick reference table.🏎️ 公制马力换算千瓦(PS 转 kW)Metric horsepower to Kilowatts Converter (PS to kW)ps-to-kw 公制马力转换为千瓦,输入数值立即得到结果,附换算公式和常用对照表。 Convert metric horsepower to kilowatts instantly, with the formula and a quick reference table.🏎️ 千瓦换算公制马力(kW 转 PS)Kilowatts to Metric horsepower Converter (kW to PS)kw-to-ps 千瓦转换为公制马力,输入数值立即得到结果,附换算公式和常用对照表。 Convert kilowatts to metric horsepower instantly, with the formula and a quick reference table.🛞 磅力/平方英寸换算巴(psi 转 bar)PSI to Bar Converter (psi to bar)psi-to-bar 磅力/平方英寸转换为巴,输入数值立即得到结果,附换算公式和常用对照表。 Convert PSI to bar instantly, with the formula and a quick reference table.🛞 巴换算磅力/平方英寸(bar 转 psi)Bar to PSI Converter (bar to psi)bar-to-psi 巴转换为磅力/平方英寸,输入数值立即得到结果,附换算公式和常用对照表。 Convert bar to PSI instantly, with the formula and a quick reference table.🛞 磅力/平方英寸换算千帕(psi 转 kPa)PSI to Kilopascals Converter (psi to kPa)psi-to-kpa 磅力/平方英寸转换为千帕,输入数值立即得到结果,附换算公式和常用对照表。 Convert PSI to kilopascals instantly, with the formula and a quick reference table.🛞 千帕换算磅力/平方英寸(kPa 转 psi)Kilopascals to PSI Converter (kPa to psi)kpa-to-psi 千帕转换为磅力/平方英寸,输入数值立即得到结果,附换算公式和常用对照表。 Convert kilopascals to PSI instantly, with the formula and a quick reference table.🩺 毫米汞柱换算千帕(mmHg 转 kPa)mmHg to Kilopascals Converter (mmHg to kPa)mmhg-to-kpa 毫米汞柱转换为千帕,输入数值立即得到结果,附换算公式和常用对照表。 Convert mmHg to kilopascals instantly, with the formula and a quick reference table.🩺 千帕换算毫米汞柱(kPa 转 mmHg)Kilopascals to mmHg Converter (kPa to mmHg)kpa-to-mmhg 千帕转换为毫米汞柱,输入数值立即得到结果,附换算公式和常用对照表。 Convert kilopascals to mmHg instantly, with the formula and a quick reference table.🌍 标准大气压换算磅力/平方英寸(atm 转 psi)Atmospheres to PSI Converter (atm to psi)atm-to-psi 标准大气压转换为磅力/平方英寸,输入数值立即得到结果,附换算公式和常用对照表。 Convert atmospheres to PSI instantly, with the formula and a quick reference table.🌍 磅力/平方英寸换算标准大气压(psi 转 atm)PSI to Atmospheres Converter (psi to atm)psi-to-atm 磅力/平方英寸转换为标准大气压,输入数值立即得到结果,附换算公式和常用对照表。 Convert PSI to atmospheres instantly, with the formula and a quick reference table.🔩 兆帕换算磅力/平方英寸(MPa 转 psi)Megapascals to PSI Converter (MPa to psi)mpa-to-psi 兆帕转换为磅力/平方英寸,输入数值立即得到结果,附换算公式和常用对照表。 Convert megapascals to PSI instantly, with the formula and a quick reference table.🔩 磅力/平方英寸换算兆帕(psi 转 MPa)PSI to Megapascals Converter (psi to MPa)psi-to-mpa 磅力/平方英寸转换为兆帕,输入数值立即得到结果,附换算公式和常用对照表。 Convert PSI to megapascals instantly, with the formula and a quick reference table.🔧 牛·米换算磅·英尺(N·m 转 lb·ft)Newton-meters to Pound-feet Converter (N·m to lb·ft)newton-meters-to-pound-feet 牛·米转换为磅·英尺,输入数值立即得到结果,附换算公式和常用对照表。 Convert newton-meters to pound-feet instantly, with the formula and a quick reference table.🔧 磅·英尺换算牛·米(lb·ft 转 N·m)Pound-feet to Newton-meters Converter (lb·ft to N·m)pound-feet-to-newton-meters 磅·英尺转换为牛·米,输入数值立即得到结果,附换算公式和常用对照表。 Convert pound-feet to newton-meters instantly, with the formula and a quick reference table.📐 度换算弧度(° 转 rad)Degrees to Radians Converter (° to rad)degrees-to-radians 度转换为弧度,输入数值立即得到结果,附换算公式和常用对照表。 Convert degrees to radians instantly, with the formula and a quick reference table.📐 弧度换算度(rad 转 °)Radians to Degrees Converter (rad to °)radians-to-degrees 弧度转换为度,输入数值立即得到结果,附换算公式和常用对照表。 Convert radians to degrees instantly, with the formula and a quick reference table.⛽ 英里/加仑(美)换算升/百公里(mpg 转 L/100km)Miles per gallon (US) to Liters per 100 km Converter (mpg to L/100km)mpg-to-liters-per-100km 英里/加仑(美)转换为升/百公里,输入数值立即得到结果,附换算公式和常用对照表。 Convert Miles per gallon (US) to liters per 100 km instantly, with the formula and a quick reference table.⛽ 升/百公里换算英里/加仑(美)(L/100km 转 mpg)Liters per 100 km to Miles per gallon (US) Converter (L/100km to mpg)liters-per-100km-to-mpg 升/百公里转换为英里/加仑(美),输入数值立即得到结果,附换算公式和常用对照表。 Convert liters per 100 km to Miles per gallon (US) instantly, with the formula and a quick reference table.
查看全部 98 个常用单位速换 →See all 98 quick unit conversions →🌐 网络工具Network & Web 全部 13 →All 13 →
🧮 子网掩码计算器IPv4 Subnet Calculator (CIDR)subnet-calculator 输入 IP/CIDR(如 192.168.1.10/24),计算网络地址、广播地址、子网掩码、可用主机范围和数量。 Calculate network, broadcast, mask, wildcard and usable host range from IP/CIDR.6️⃣ IPv6 地址展开/压缩IPv6 Expand & Compressipv6-expander IPv6 地址完整展开与压缩(::),显示地址类型和反向解析 ip6.arpa。 Expand or compress IPv6 addresses, show address type and ip6.arpa reverse name.🔢 IP 地址进制转换IP Address Converterip-address-converter IPv4 地址与十进制整数、十六进制、二进制、IPv4 映射 IPv6 互相转换。 Convert IPv4 addresses to/from decimal integer, hex, binary and IPv4-mapped IPv6.📐 IP 范围转 CIDRIP Range to CIDRip-range-to-cidr 把 IP 起止范围(如 10.0.0.0 - 10.0.3.255)转换为最少的 CIDR 网段列表。 Convert IP ranges (start - end) into the minimal list of CIDR blocks.🕵️ User-Agent 解析User Agent Parseruser-agent-parser 解析浏览器 User-Agent 字符串:浏览器、版本、操作系统、设备类型和渲染引擎。默认显示你自己的 UA。 Parse User-Agent strings into browser, version, OS, device type and engine (yours by default).🧭 我的浏览器信息What's My Browserbrowser-info 查看你的浏览器、操作系统、屏幕分辨率、视口大小、像素比、语言、时区、CPU 核心等信息。 See your browser, OS, screen resolution, viewport, pixel ratio, language, time zone, CPU cores and more.🔌 MAC 地址格式转换MAC Address Formattermac-address-formatter 把 MAC 地址转换为冒号、短横线、Cisco 点分、无分隔等格式,支持批量。 Convert MAC addresses between colon, hyphen, Cisco dot and plain formats, in bulk.🌐 Punycode 中文域名转换Punycode Converter (IDN)punycode-converter 中文/国际化域名(IDN)与 Punycode(xn--)编码互相转换,如 例子.中国 ↔ xn--fsqu00a.xn--fiqs8s。 Convert internationalized domain names (IDN) to/from Punycode (xn--).📨 HTTP 请求头解析HTTP Header Parserhttp-header-parser 把原始 HTTP 请求/响应头文本解析为 JSON,识别请求行/状态行和 Cookie。 Parse raw HTTP request/response headers into JSON, including the start line and cookies.🚪 常用端口号大全Common Network Ports Listcommon-ports 常见 TCP/UDP 端口号速查:22 SSH、80 HTTP、443 HTTPS、3306 MySQL、6379 Redis 等,可搜索。 Searchable list of common TCP/UDP ports: 22 SSH, 80 HTTP, 443 HTTPS, 3306 MySQL, 6379 Redis…✉️ 邮箱地址格式验证Email Address Validatoremail-validator 批量检查邮箱地址格式是否有效,并提示常见错误(如 gmial.com 拼写)。 Bulk-check email address syntax and flag common typos (e.g. gmial.com).📶 WiFi 二维码生成器WiFi QR Code Generatorwifi-qr-code-generator 输入 WiFi 名称和密码生成二维码,手机扫码即可连接,支持 WPA/WPA2/WPA3、WEP 和开放网络,可下载打印。 Create a QR code that joins your WiFi network when scanned — WPA/WPA2/WPA3, WEP or open — download and print it.⏬ 下载时间计算器Download Time Calculatordownload-time-calculator 根据文件大小和网速(Mbps、MB/s 等)计算下载或上传所需时间,可考虑网络开销。 How long a download or upload takes for a given file size and connection speed (Mbps, MB/s…), with overhead.
🀄 中文工具Chinese Tools 全部 22 →All 22 →
🀄 全角半角转换Full-width / Half-width Converterfullwidth-halfwidth 在线全角转半角、半角转全角,快速修正中文输入中的全角字母、数字和标点。 Convert between full-width and half-width characters (letters, digits, punctuation).💴 人民币大写转换RMB to Chinese Uppercasermb-uppercase 在线将金额数字转换为人民币大写(壹贰叁…元角分),用于发票、支票和合同。 Convert amounts to Chinese financial uppercase numerals (RMB) for invoices and cheques.🈶 汉字转拼音Chinese to Pinyin Converterpinyin-converter 在线汉字转拼音,支持声调符号、数字声调、无声调,智能识别多音字。 Convert Chinese characters to pinyin with tone marks, tone numbers or no tones; handles polyphones.🔠 拼音首字母提取Pinyin Initials Generatorpinyin-initials 提取汉字拼音首字母,常用于通讯录排序、简拼搜索和缩写。 Extract the first letters of pinyin for Chinese text — for sorting, search and abbreviations.🀄 简繁体转换Simplified ↔ Traditional Chinese Converterchinese-converter 在线简体中文与繁体中文互转,支持台湾正体、香港繁体及常用词汇转换(OpenCC 词库)。 Convert Simplified ↔ Traditional Chinese (Taiwan, Hong Kong variants and phrases) using OpenCC.🪪 身份证号码校验Chinese ID Card Validatorid-card-validator 校验 18 位身份证号码是否有效(校验码),解析出生日期、性别、年龄和省份。本地运行不上传。 Validate 18-digit Chinese ID numbers (checksum) and decode birth date, gender, age and province.🏮 农历阳历转换Chinese Lunar Calendar Converterlunar-calendar-converter 公历(阳历)与农历互相转换,显示干支年、生肖和传统节日,支持闰月。 Convert Gregorian dates to the Chinese lunar calendar and back, with stem-branch year and zodiac.🐉 生肖星座查询Chinese Zodiac & Star Sign Calculatorzodiac-calculator 输入出生日期,查询生肖(按农历春节划分)、星座、干支纪年和本命年。 Find your Chinese zodiac animal (by lunar new year), Western star sign and stem-branch year.🔢 数字转中文(大小写)Chinese Numerals Converterchinese-number-converter 阿拉伯数字与中文数字互相转换:1234 ↔ 一千二百三十四 ↔ 壹仟贰佰叁拾肆,支持万、亿和小数。 Convert Arabic numbers to/from Chinese numerals (一千二百三十四 / 壹仟贰佰叁拾肆), incl. 万/亿 and decimals.〽️ 中英文标点转换Chinese ↔ English Punctuation Converterchinese-punctuation-converter 中文全角标点与英文半角标点互相转换:,。!?“”()【】等。 Convert Chinese full-width punctuation to English half-width and back.✂️ 中文分词工具Chinese Word Segmentationchinese-word-segmentation 在线中文分词:把一段中文切分为词语,可选分隔符、过滤标点、统计词频。基于浏览器内置词典,离线运行。 Split Chinese text into words with a custom separator, optional punctuation filter and word counts.🔤 中文按拼音排序Sort Chinese by Pinyinchinese-pinyin-sort 把中文名单或词语按拼音字母顺序排序,可按首字母分组,适合通讯录和名单整理。 Sort Chinese names or words alphabetically by pinyin, optionally grouped by initial letter.ㄅ 汉字转注音符号(ㄅㄆㄇ)Chinese to Zhuyin (Bopomofo) Converterzhuyin-converter 把汉字或拼音转换为注音符号(ㄅㄆㄇㄈ),台湾常用,带声调。 Convert Chinese characters or pinyin to Zhuyin/Bopomofo (ㄅㄆㄇㄈ) with tone marks.🏢 统一社会信用代码校验Unified Social Credit Code Validatoruscc-validator 批量校验 18 位统一社会信用代码(企业/组织)的格式和校验位,并解析登记机关、机构类别和行政区划码。 Validate China's 18-character Unified Social Credit Codes (checksum) and decode the registration type.💳 银行卡号校验(Luhn)Bank Card Number Validator (Luhn)bank-card-validator 用 Luhn 算法批量校验银行卡/信用卡号是否有效,并识别卡组织(银联、Visa、Mastercard、AmEx、JCB)。本地运行。 Check card numbers with the Luhn algorithm and detect the network (UnionPay, Visa, Mastercard, AmEx, JCB…).📱 手机号码校验/运营商识别China Mobile Number Validatorchina-phone-validator 批量校验中国大陆手机号格式,识别中国移动、联通、电信、广电和虚拟运营商号段。 Validate mainland China mobile numbers in bulk and identify the carrier from the prefix.🚘 车牌号码归属地查询/校验China License Plate Lookuplicense-plate-lookup 识别中国车牌所属省份、是否省会城市(A 字头)、普通/新能源车牌类型,并校验格式。 Identify the province of a Chinese license plate, plate type (regular / new energy) and check the format.📅 日期转中文大写(支票日期)Chinese Date in Characters (Cheque Format)chinese-date-converter 把日期转换为中文小写(二〇二六年十月十七日)和支票/票据用大写日期(贰零贰陆年零壹拾月壹拾柒日)。 Write a date in Chinese numerals and in the financial-cheque uppercase format (with required 零 prefixes).🌾 二十四节气日期查询24 Solar Terms Calendarsolar-terms-calendar 查询任意年份(2000–2099)二十四节气的具体日期和星期,显示下一个节气和倒计时。 Dates of the 24 Chinese solar terms for any year 2000–2099, with the next term and countdown.☯️ 生辰八字/干支计算器Chinese BaZi (Four Pillars) Calculatorbazi-calculator 根据公历出生日期和时辰,按节气换月、立春换年,排出年柱、月柱、日柱、时柱(四柱八字)和五行。 Year, month, day and hour pillars (BaZi / Four Pillars) with five elements, using solar terms for month and year changes.🏮 中国节日倒计时Chinese Holidays Countdownchinese-holidays-countdown 距离春节、元宵、清明、端午、七夕、中秋、国庆等中国传统节日和法定节日还有多少天,自动按农历计算。 Days until Chinese New Year, Lantern, Qingming, Dragon Boat, Qixi, Mid-Autumn, National Day and more (lunar dates computed).📜 竖排文字生成器(古风)Vertical Chinese Text Convertervertical-text-converter 把横排中文转换为从右到左的竖排文字,可设置每列字数,适合古风排版和社交媒体。 Turn horizontal Chinese text into traditional right-to-left vertical columns with a set column height.
🎲 随机生成Random Generators 全部 15 →All 15 →
🆔 UUID 生成器UUID Generatoruuid-generator 在线批量生成 UUID v4(GUID),可选大写和去掉连字符。 Generate random UUID v4 / GUIDs in bulk.🔑 随机密码生成器Password Generatorpassword-generator 在线生成高强度随机密码,可设置长度、大小写、数字、符号,排除易混淆字符。 Generate strong random passwords with custom length and character sets.🎰 随机数生成器Random Number Generatorrandom-number 在线生成指定范围内的随机整数,可批量生成、不重复,适合抽奖和抽签。 Generate random integers in a range, in bulk, with optional no-repeat — great for draws.🎲 抛硬币 / 掷骰子Coin Flip & Dice Rollercoin-dice 在线抛硬币、掷骰子,支持多个骰子和自定义面数(D4–D100)。 Flip a coin or roll dice online — multiple dice, D4 to D100.🔤 随机字符串生成器Random String Generatorrandom-string-generator 生成指定长度和字符集的随机字符串,可用于 API 密钥、Token、测试数据。 Generate random strings with custom length and character sets — API keys, tokens, test data.📅 随机日期生成器Random Date Generatorrandom-date-generator 在指定日期范围内随机生成日期(可含时间),可批量生成并排序。 Generate random dates (optionally with times) within a range, in bulk.🔢 数字序列生成器Number Sequence Generatornumber-sequence-generator 按起始值、结束值和步长生成数字序列(等差/等比),可加前后缀和补零,批量编号必备。 Generate arithmetic/geometric number sequences with prefix/suffix and zero-padding.🔑 密码短语生成器Passphrase Generatorpassphrase-generator 用随机英文单词生成易记又安全的密码短语(类似 Diceware),可设单词数、分隔符、大写和数字,显示熵值。 Generate memorable, strong passphrases from random words (Diceware-style) with entropy shown.🪪 随机姓名生成器Random Name Generatorrandom-name-generator 随机生成中文姓名或英文姓名,可批量生成,适合测试数据、小说角色和游戏昵称。 Generate random Chinese or English names in bulk — for test data, characters and nicknames.🧪 测试数据生成器(假数据)Fake Test Data Generatorfake-data-generator 批量生成假的测试数据:姓名、邮箱、手机号、城市、日期、UUID、金额,导出 JSON、CSV 或 SQL。 Generate fake test data — names, emails, phones, cities, dates, UUIDs, amounts — as JSON, CSV or SQL.🔡 随机字母生成器Random Letter Generatorrandom-letter-generator 随机生成英文字母(大写/小写/混合),可设数量、是否重复,适合游戏和教学。 Random letters (upper, lower or mixed) with count and no-repeat options — for games and teaching.🌐 随机 IP 地址生成器Random IP Address Generatorrandom-ip-generator 随机生成 IPv4 或 IPv6 地址,可选公网/内网,批量生成测试数据。 Generate random IPv4 or IPv6 addresses (public or private) in bulk for testing.🃏 随机抽扑克牌Random Playing Card Drawplaying-card-draw 从一副标准 52 张扑克牌(可含大小王)中随机抽牌,不放回,可洗牌重来。 Draw random cards from a standard 52-card deck (jokers optional) without replacement; reshuffle anytime.🔮 Yes or No 随机决定器Yes or No Oracleyes-no-oracle 纠结的时候让它帮你决定:随机给出“是”或“否”(可加“也许”),公平随机。 Can't decide? Get a fair random Yes or No (optionally Maybe).🎉 随机 Emoji 生成器Random Emoji Generatorrandom-emoji-generator 随机生成表情符号,可按类别(表情、动物、食物、运动、交通、自然)选择,一键复制。 Random emojis by category — faces, animals, food, sports, travel, nature — copy with one click.
🎮 趣味工具Fun & Games 全部 16 →All 16 →
🎡 幸运大转盘Spin the Wheel (Random Picker)spin-the-wheel 自定义选项的在线幸运转盘:抽奖、吃什么、谁请客,一转决定。 Custom spinning wheel to pick a random option — raffles, what to eat, who pays.🎯 随机点名/抽奖器Random Name Pickerrandom-name-picker 粘贴名单,随机抽取一个或多个名字,不重复,适合课堂点名、年会抽奖。 Paste a list and randomly draw one or more names without repeats — for classes and raffles.⌨️ 打字速度测试Typing Speed Testtyping-speed-test 在线测试打字速度(WPM/每分钟字数)和准确率,支持中英文。 Test your typing speed (WPM / characters per minute) and accuracy, English or Chinese.⚡ 反应速度测试Reaction Time Testreaction-time-test 测试你的反应速度:屏幕变绿时尽快点击,统计平均反应时间(毫秒)。 Test your reaction time: click as soon as the box turns green; get your average in ms.🖱️ 手速测试(CPS)Click Speed Test (CPS)click-speed-test 测试你每秒能点击多少次鼠标(CPS),可选 5/10/30 秒。 How many clicks per second can you do? 5, 10 or 30-second CPS test.👥 随机分组器Random Team Generatorteam-generator 把名单随机分成若干组,可按组数或每组人数分组,适合活动、课堂和比赛。 Randomly split a list of names into teams — by number of teams or team size.🎱 彩票号码随机生成Lottery Number Generatorlottery-number-generator 随机生成双色球、大乐透、Powerball、Mega Millions、欧洲百万号码,或自定义规则。仅供娱乐。 Random numbers for lotteries (双色球, 大乐透, Powerball, Mega Millions, EuroMillions) or custom rules. For fun.🔢 在线计数器Online Tally Countertally-counter 在线点击计数器,支持多个计数项、加减、键盘快捷键,自动保存。 Online click/tally counter with multiple counters, +/−, keyboard shortcuts and auto-save.🎹 在线钢琴Online Pianoonline-piano 在浏览器中弹钢琴:鼠标点击、触屏或电脑键盘(Z 行 + S 行为低八度,Q 行 + 数字行为高八度,共 24 键)演奏两个八度,支持多种音色。 Play a two-octave piano in your browser with mouse, touch or computer keyboard (Z row + S row = lower octave, Q row + number row = upper octave, all 24 keys), several tones.🥁 在线节拍器Online Metronomemetronome 可调速度(20–300 BPM)、拍号和重音的在线节拍器,带视觉节拍指示和点击测速(Tap Tempo)。 Online metronome with adjustable tempo (20–300 BPM), time signature and accent, visual beat indicator and tap tempo.〰️ 在线音频发生器(频率声音)Online Tone Generatortone-generator 生成指定频率(1–20000 Hz)的正弦波、方波、三角波、锯齿波声音,可用于调音、测试耳机和听力。 Generate a tone at any frequency (1–20000 Hz) with sine, square, triangle or sawtooth waves — for tuning and audio tests.🌧️ 白噪音生成器(助眠/专注)White Noise Generatorwhite-noise-generator 在线播放白噪音、粉红噪音、棕色噪音,帮助睡眠、专注和屏蔽环境噪声,可设定时关闭。 Play white, pink or brown noise for sleep, focus and masking background sound, with a sleep timer.⭕ 井字棋(人机对战)Tic-Tac-Toe vs Computertic-tac-toe 经典井字棋:与电脑(简单/不可战胜)或好友对战,记录胜负比分。 Classic tic-tac-toe against the computer (easy or unbeatable) or a friend, with a scoreboard.🔢 2048 小游戏2048 Gamegame-2048 经典 2048 数字合并游戏:用方向键或手机滑动合并相同数字,挑战 2048,自动保存最高分。 The classic 2048 puzzle: slide with arrow keys or swipes to merge tiles and reach 2048; best score saved.🖌️ 在线画板Online Drawing Boarddrawing-board 简单好用的在线画板:画笔、橡皮擦、颜色、粗细、撤销、清空,支持触屏,可下载 PNG。 A simple online drawing board with brush, eraser, colors, sizes, undo and clear; touch-friendly, save as PNG.🟥 屏幕坏点检测Dead Pixel Testdead-pixel-test 全屏显示纯红、绿、蓝、白、黑等颜色,帮助检测显示器和手机屏幕的坏点、亮点和漏光。 Show full-screen solid colors (red, green, blue, white, black…) to spot dead or stuck pixels and backlight bleed.