🖼️ GIF 转 AVIFGIF to AVIF Converter
把 GIF 图片批量转换为 AVIF 静态图：颜色不再受 256 色限制，体积通常小很多，保留透明，可调质量、编码速度或选择无损，多张打包 ZIP，图片只在浏览器本地编码。Batch-convert GIF images to still AVIF — no 256-colour limit and usually much smaller files — keeping transparency, with adjustable quality, encoder speed or lossless mode. Download each file or a ZIP; images are encoded only in your browser.
使用说明与常见问题How-to & FAQ
「GIF 转 AVIF」是什么？What is the GIF to AVIF Converter tool?
把 GIF 图片批量转换为 AVIF 静态图：颜色不再受 256 色限制，体积通常小很多，保留透明，可调质量、编码速度或选择无损，多张打包 ZIP，图片只在浏览器本地编码。Batch-convert GIF images to still AVIF — no 256-colour limit and usually much smaller files — keeping transparency, with adjustable quality, encoder speed or lossless mode. Download each file or a ZIP; images are encoded only in your browser.
如何使用「GIF 转 AVIF」？How do I use the GIF to AVIF Converter tool?
在「GIF 转 AVIF」中，选择或拖入文件，按需设置「质量」、「编码速度」等选项，然后点击「全部下载（ZIP）」按钮即可。In the GIF to AVIF Converter: Choose or drop your files, set "Quality", "Encoder speed", then click "Download all (ZIP)".
动图 GIF 会怎样？What happens to animated GIFs?
此工具输出静态 AVIF：动图只转换第一帧，结果中会注明“仅转换了第一帧”。如果要保留动画，可以用 GIF 转 WebP（动图）或视频类工具。图标和像素画建议勾选“无损”，避免边缘出现模糊。This tool writes still AVIFs: an animated GIF converts its first frame only, and the result says so. To keep the animation, use GIF to WebP or a video tool. For icons and pixel art, tick Lossless so edges stay crisp.
AVIF 有什么好处？质量和速度怎么选？Why AVIF, and how do I set quality and speed?
AVIF 基于 AV1 视频编码，同等画质下通常比 JPG 小一半左右、也比 WebP 更小，并支持透明。质量 60 是兼顾体积和画质的常用值，80 以上肉眼几乎无损；“编码速度”越慢文件越小，但大图可能要十几秒。勾选“无损”会按 4:4:4 无损编码，像素完全不变，但文件往往比 PNG 小不了多少。AVIF is based on the AV1 video codec: at the same visual quality it is often around half the size of JPG and smaller than WebP, with transparency support. Quality 60 is a common balance of size and quality and 80+ looks lossless to most eyes; slower encoder speeds give smaller files but large images can take 10+ seconds. Lossless encodes 4:4:4 with every pixel unchanged, though the file is often not much smaller than PNG.
编码在哪里进行？第一次为什么慢？Where does encoding happen, and why is the first run slow?
浏览器的 Canvas 不能直接导出 AVIF，所以本工具在后台线程（Web Worker）中运行开源编码器 libavif + libaom（WebAssembly，来自 jSquash，Apache-2.0 / BSD 许可）。编码组件约 3.5 MB，第一次转换时下载，之后由浏览器缓存；图片始终只在本机处理，不会上传。单张最多 4,000 万像素。Browser Canvas cannot export AVIF, so the tool runs the open-source libavif + libaom encoder (WebAssembly, from jSquash, Apache-2.0 / BSD licensed) in a background Web Worker. The encoder is about 3.5 MB and downloads on first use, then stays in the browser cache; images are only processed on your device and never uploaded. Each image can be up to 40 megapixels.
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.
「GIF 转 AVIF」免费吗？需要注册吗？Is the GIF to AVIF Converter free? Do I need an account?
「GIF 转 AVIF」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 GIF to AVIF 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.