Convert AVIF files to WebP when you need a format with wider tool support or a smaller, browser-friendly file for your site.
Everything happens in your browser, so your images stay private.
How to use this tool
Add your AVIF
Drag and drop your AVIF file onto the tool or choose it from your computer.
WebP is pre-selected
The output format is already WebP. Adjust quality if needed.
Compare and download
Preview the result, then download your WebP.
Converting backwards, and why you sometimes need to
AVIF gives the smallest files, but WebP is the safer format in practice: it has broader support, especially on slightly older browsers and in older image editing tools, and it is accepted by more content management systems and upload forms.
Moving from AVIF to WebP means re-encoding an already-lossy image, so a little quality is lost. You also lose the size advantage — expect the WebP to be larger than the AVIF it came from, sometimes by 20–40%.
When this conversion is the right call
- A CMS or upload form rejects AVIF but accepts WebP — still a very common restriction.
- You need to edit the image, and your editor does not open AVIF.
- You are standardising a mixed library on one format, and WebP is the one with the fewest compatibility surprises.
When it is not
If the image is already live on a page and the browser support is fine, leave it as AVIF. Converting to WebP only makes the file bigger. Reach for this conversion when something downstream refuses AVIF, not as a general tidy-up.
Frequently asked questions
Why convert AVIF to WebP?
WebP has broader support in older browsers and many tools and platforms that don't yet handle AVIF.
Is WebP good quality?
Yes — at sensible quality settings WebP is visually indistinguishable from the source for most images.
Is it private?
Yes. Images are processed locally and never uploaded.