📋 TSV 转 CSVTSV to CSV Converter
把从 Excel 或表格复制出来的 TSV（制表符分隔）转换成标准 CSV，自动给含逗号、引号、换行的字段加引号。Convert TSV (tab-separated, e.g. copied from Excel or Sheets) to standard CSV, quoting fields that contain commas, quotes or line breaks.
使用说明与常见问题How-to & FAQ
「TSV 转 CSV」是什么？What is the TSV to CSV Converter tool?
把从 Excel 或表格复制出来的 TSV（制表符分隔）转换成标准 CSV，自动给含逗号、引号、换行的字段加引号。Convert TSV (tab-separated, e.g. copied from Excel or Sheets) to standard CSV, quoting fields that contain commas, quotes or line breaks.
如何使用「TSV 转 CSV」？How do I use the TSV to CSV Converter tool?
在「TSV 转 CSV」中，把内容粘贴或输入到上方输入框，按需设置「输出分隔符」，结果会实时显示在下方，点击「复制结果」即可复制。In the TSV to CSV Converter: Paste or type into the input box, adjust "Output delimiter"; the result appears below instantly — click "Copy result" to copy it.
为什么 Excel 打开 CSV 中文乱码？Why does Excel show garbled Chinese?
Excel 默认不按 UTF-8 读取没有 BOM 的 CSV。勾选“加 UTF-8 BOM”后再保存为 .csv 文件即可正常显示。Excel does not assume UTF-8 for CSV files without a BOM. Tick "Add UTF-8 BOM" and save as .csv to fix it.
引号和换行怎么处理？How are quotes and line breaks handled?
按 RFC 4180 解析：用双引号包住的字段可以包含分隔符、换行，两个双引号 "" 表示一个引号；输出时只在必要时加引号。开头的 UTF-8 BOM 会被忽略。Parsed per RFC 4180: double-quoted fields may contain delimiters and line breaks, and "" is an escaped quote; output is quoted only where needed. A leading UTF-8 BOM is ignored.
数据会上传吗？Is my data uploaded?
不会。转换完全在浏览器本地进行，适合处理内部数据。No. Conversion happens entirely in your browser, so it is safe for internal data.
「TSV 转 CSV」免费吗？需要注册吗？Is the TSV to CSV Converter free? Do I need an account?
「TSV 转 CSV」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The TSV to CSV Converter is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.