🖼️ AVIF 转 WebPAVIF to WebP Converter
把 AVIF 图片批量转换为 WebP：兼容性比 AVIF 更好（旧版 Safari、部分 CMS 和社交平台也支持），保留透明，可调质量控制体积，多张打包 ZIP，图片只在浏览器本地处理。Batch-convert AVIF images to WebP, which is supported more widely than AVIF (older Safari, many CMSs and social platforms), keeping transparency with adjustable quality for file size. Download each file or a ZIP; images are processed only in your browser.
使用说明与常见问题How-to & FAQ
「AVIF 转 WebP」是什么？What is the AVIF to WebP Converter tool?
把 AVIF 图片批量转换为 WebP：兼容性比 AVIF 更好（旧版 Safari、部分 CMS 和社交平台也支持），保留透明，可调质量控制体积，多张打包 ZIP，图片只在浏览器本地处理。Batch-convert AVIF images to WebP, which is supported more widely than AVIF (older Safari, many CMSs and social platforms), keeping transparency with adjustable quality for file size. Download each file or a ZIP; images are processed only in your browser.
如何使用「AVIF 转 WebP」？How do I use the AVIF to WebP Converter tool?
在「AVIF 转 WebP」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 AVIF to WebP Converter: Choose or drop your files, set "Quality", then click "Download all (ZIP)".
AVIF 已经很小了，为什么还要转 WebP？AVIF is already small — why convert to WebP?
主要是兼容性：Safari 14–15、部分 WordPress 主题、广告平台和图片 CDN 只认 WebP。WebP 通常会比原 AVIF 稍大一些；质量 85 左右肉眼一般看不出差别，想要更小可降到 70–80。Compatibility: Safari 14–15, some WordPress themes, ad platforms and image CDNs accept WebP but not AVIF. The WebP is usually a little larger than the AVIF; quality around 85 is visually lossless for most images, and 70–80 gives smaller files.
AVIF 是什么？为什么有的软件打不开？What is AVIF, and why won't some apps open it?
AVIF 是基于 AV1 编码的新一代图片格式，体积小、画质好，很多网站和手机已经在用；但旧版 Windows 照片查看器、Photoshop 的旧版本、Office 和不少上传表单还不支持。转换后的文件可以在这些软件里正常打开。需要 Chrome、Edge、Firefox 或 Safari 16 以上来解码。AVIF is a newer image format based on AV1 that gives small files with good quality, and many sites and phones already use it — but older Windows photo viewers, older Photoshop versions, Office and many upload forms still don't accept it. The converted file opens normally there. Decoding needs Chrome, Edge, Firefox or Safari 16+.
HDR、动画 AVIF 和 10 位色深会怎样？What about HDR, animated AVIF and 10-bit images?
HDR 和 10/12 位 AVIF 会按浏览器的标准动态范围（sRGB、8 位）输出；动画 AVIF 只转换第一帧，结果中会注明。HDR and 10/12-bit AVIFs are output in the browser's standard dynamic range (sRGB, 8-bit); animated AVIFs convert their first frame only, and the result 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.
「AVIF 转 WebP」免费吗？需要注册吗？Is the AVIF to WebP Converter free? Do I need an account?
「AVIF 转 WebP」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 AVIF 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.