How do I convert WebP to AVIF?

Upload your WebP file above. It is converted to AVIF automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.

Does converting WebP to AVIF lose quality?

AVIF is lossy by default, so some fine detail is discarded to make the file smaller. Raise the quality or switch on lossless in Settings for a closer copy.

Will the AVIF keep the transparent background?

Yes. AVIF supports smooth, partial transparency, so transparent areas stay transparent.

Will the animation be kept?

不能。AVIF 无法保存动画，因此动态 WebP 会保存为其第一帧。

WebP or AVIF: which should I use?

Use WebP for websites, online stores and blogs that need fast-loading images. Use AVIF for the smallest high-quality images for websites and apps. Keep in mind the main drawback of AVIF: it is slow to create and many editing apps and older devices can't open it.

什么是 WebP 文件？

WebP was designed by Google for the web. Google measured lossy WebP files at 25–34% smaller than comparable JPGs, and WebP also handles transparency and animation.

Is the WebP to AVIF converter free?

Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.

Convert WebP to AVIF — Smallest High-Quality Images

Convert WebP to AVIF online for very small web images that keep transparency. No software to install. Preview one free or batch-convert with Premium.

Drop your WebP file or click to browse

Why convert WebP to AVIF?

AVIF files are usually smaller than WebP for the same picture, so pages load faster and uploads finish sooner.
Transparent areas stay transparent: AVIF supports smooth, partial transparency just like WebP.
AVIF is made for the smallest high-quality images for websites and apps.

What to expect when converting WebP to AVIF

AVIF 无法保存此动画，因此动态 WebP 会保存为其第一帧。
AVIF uses lossy compression by default; raise the quality or switch on lossless in Settings for a closer copy.

WebP 与 AVIF 对比

功能	WebP	AVIF
全名	WebP	AV1 图像文件格式
来源	Released by Google in 2010	Released by the Alliance for Open Media in 2019
压缩	有损或无损	有损或无损
透明度	Yes — smooth, partial transparency	Yes — smooth, partial transparency
动画	是	是
颜色	每通道 8 位	8, 10 or 12 bits per channel, including HDR
可用什么打开	All current browsers; some older desktop apps and upload forms reject it	Current Chrome, Edge, Firefox and Safari 16+; fewer editing apps
最适合	websites, online stores and blogs that need fast-loading images	the smallest high-quality images for websites and apps
主要缺点	旧应用和部分上传表单不接受它	它的生成速度慢，许多编辑应用和旧设备都打不开它

In short: choose WebP for websites, online stores and blogs that need fast-loading images; choose AVIF for the smallest high-quality images for websites and apps.

Frequently asked questions

How do I convert WebP to AVIF?: Upload your WebP file above. It is converted to AVIF automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.
Does converting WebP to AVIF lose quality?: AVIF is lossy by default, so some fine detail is discarded to make the file smaller. Raise the quality or switch on lossless in Settings for a closer copy.
Will the AVIF keep the transparent background?: Yes. AVIF supports smooth, partial transparency, so transparent areas stay transparent.
Will the animation be kept?: 不能。AVIF 无法保存动画，因此动态 WebP 会保存为其第一帧。
WebP or AVIF: which should I use?: Use WebP for websites, online stores and blogs that need fast-loading images. Use AVIF for the smallest high-quality images for websites and apps. Keep in mind the main drawback of AVIF: it is slow to create and many editing apps and older devices can't open it.
什么是 WebP 文件？: WebP was designed by Google for the web. Google measured lossy WebP files at 25–34% smaller than comparable JPGs, and WebP also handles transparency and animation.
Is the WebP to AVIF converter free?: Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.

使用 WebP 转 AVIF 可以做什么

在开始之前查看主要功能。

Convert WebP files to AVIF online
Choose AVIF quality or switch to lossless
Switch to any other output format in Settings
Batch-convert many WebP files into one ZIP
Preview the result before you download

使用这个工具

设置参考

WebP 转 AVIF 的可用控件。

设置

输出格式下拉框: Chooses the file type you download. The page opens on its own output format; switch to any other format before converting.选项: JPGPNGWebPAVIFGIFTIFFBMPICOPDF
质量滑块范围: 20–100 · 默认: 90: For JPG, WebP, AVIF and image-to-PDF output: higher keeps more detail but makes a bigger file; 60–80 suits most photos. Documents (Publisher, XPS, EPS…) become PDFs with every page and sharp text, with no quality setting.
无损模式开／关: For WebP and AVIF output: keeps every pixel exactly (best for logos, graphics and transparency) at the cost of a larger file.
背景填充取色器: 适用于无法存储透明度的 JPG、BMP 和图片转 PDF 输出：用于填充透明区域的颜色（默认为白色）。