Add up to 30 AVIF images (up to 50 MB each) and convert them to WebP, lossy at the quality you choose (10 to 100, default 85) or lossless. Transparency carries over. The tool has its own AVIF decoder for browsers that can't read AVIF, and the conversion runs in your browser.
Convert AVIF images to WebP
AVIF usually gives the smallest image files, but WebP is supported by many more browsers, editors and content management systems. This AVIF to WebP converter is a practical middle ground: modern compression with much wider compatibility.
Why convert AVIF to WebP?
Plenty of programs that accept WebP still reject AVIF, including some CMS platforms, email clients, upload forms and design tools. WebP also encodes much faster than AVIF, which helps when you process many images. If your images need to work in more places and stay small, WebP is the sensible choice.
File size
The WebP will usually be somewhat larger than the AVIF at similar visual quality, since AVIF compresses more efficiently. It will still be noticeably smaller than a JPG of the same image, so you keep most of the benefit of a modern format.
Transparency
Both formats support alpha channel transparency, and the converter keeps it, including semi-transparent areas. If you need transparency with the widest support among modern formats, WebP is the best choice.
Private processing
Your AVIF images are converted in your browser and never uploaded.
Frequently Asked Questions
Is WebP more compatible than AVIF?
Yes. WebP has been around since 2010, and current browsers and most modern software support it. AVIF still isn't supported by many CMS platforms, image editors and older browsers.
How much larger will my WebP files be compared to AVIF?
It depends on the image, but expect the WebP to be somewhat larger at similar quality. It will still be smaller than a JPG of the same image.
Does AVIF to WebP conversion preserve transparency?
Yes. Semi-transparent areas, anti-aliased edges and fully transparent regions all carry over to the WebP.
Which format should I use for my website, AVIF or WebP?
AVIF for the smallest files when your visitors use current browsers, WebP for broader compatibility with CMS platforms, email clients and older software. Many websites serve both, with AVIF first and WebP as the fallback.