📱 HEIC 转 WebP（iPhone 照片）HEIC to WebP Converter

使用说明与常见问题How-to & FAQ

「HEIC 转 WebP（iPhone 照片）」是什么？What is the HEIC to WebP Converter tool?

把 iPhone 的 HEIC/HEIF 照片批量转换为 WebP：体积小、网页和安卓都能直接显示，可调质量，适合上传网站和博客，多张打包 ZIP，照片只在浏览器本地处理。Batch-convert iPhone HEIC/HEIF photos to WebP — small files that browsers and Android display directly — with adjustable quality, ready for websites and blogs. Download each file or a ZIP; photos are processed only in your browser.

如何使用「HEIC 转 WebP（iPhone 照片）」？How do I use the HEIC to WebP Converter tool?

在「HEIC 转 WebP（iPhone 照片）」中，选择或拖入文件，按需设置「质量」等选项，然后点击「全部下载（ZIP）」按钮即可。In the HEIC to WebP Converter: Choose or drop your files, set "Quality", then click "Download all (ZIP)".

HEIC 转 WebP 还是转 JPG？WebP or JPG for HEIC photos?

上传到网站、博客或在网页中使用时选 WebP：同等画质下通常比 JPG 小 25–35%。要发给不确定用什么软件的人、打印或导入老软件时选 JPG（用「HEIC 转 JPG」），兼容性最好。质量 85 左右肉眼一般看不出差别。Choose WebP for websites, blogs and other web use: it is usually 25–35% smaller than JPG at the same quality. For sending to people with unknown software, printing or older apps, JPG (use HEIC to JPG) is the most compatible. Quality around 85 is visually lossless for most photos.

HEIC 是什么？第一次为什么慢？What is HEIC, and why is the first run slow?

HEIC 是 iPhone 和不少安卓手机默认的照片格式（HEIF 容器 + HEVC 编码），Windows、网页和很多软件不能直接打开。解码组件 heic2any（MIT，内含 LGPL 许可的 libheif）约 1.3 MB，第一次转换时才加载；实况照片和连拍只取主图。少数带透明通道的 HEIC（iPhone 照片没有）目前读不出透明信息，透明区域会按不透明处理，转换后会在结果旁提示。HEIC is the default photo format on iPhones and many Android phones (HEIF container + HEVC), which Windows, websites and many apps cannot open directly. The decoder, heic2any (MIT, bundling LGPL-licensed libheif), is about 1.3 MB and loads on first use; Live Photos and bursts give the main image only. The rare HEIC files with an alpha channel (iPhone photos have none) can't have their transparency read yet, so transparent areas come out opaque; the result row says so.

WebP 有什么好处？Why WebP?

在相同画质下 WebP 通常比 JPG 小 25–35%，并支持透明背景，所有现代浏览器都能显示；但一些老旧软件和部分平台仍无法打开 WebP。At the same quality WebP is typically 25–35% smaller than JPG and supports transparency; all modern browsers display it, though some older software and platforms still cannot open it.

图片会上传吗？Are my images uploaded?

不会。解码和编码都在你的浏览器里完成，文件不会离开你的设备；照片中的 EXIF 元数据（包括拍摄位置）不会写入输出文件。No. Decoding and encoding happen in your browser and files never leave your device; EXIF metadata in photos (including location) is not written to the output.

「HEIC 转 WebP（iPhone 照片）」免费吗？需要注册吗？Is the HEIC to WebP Converter free? Do I need an account?

「HEIC 转 WebP（iPhone 照片）」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 HEIC to WebP 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.