WebP to AVIF Converter
Push image compression further: convert WebP files to AVIF and save even more bandwidth, right in your browser, with adjustable quality and batch support.
What Is This Tool?
WebP is efficient, but AVIF is the current champion. Built on the AV1 video codec, it routinely produces files 20-30% smaller than WebP at matched quality — a meaningful win for image-heavy sites with bandwidth budgets.
This converter decodes your WebP files and re-encodes them as AVIF with tunable quality. The trade-off is browser support, which has grown quickly: if your audience is on modern browsers, AVIF is ready for production.
Everything runs locally through WebAssembly, so even big batches convert privately. Add your files, set the quality, and export the optimized set.
How to Use
- Add WebP files via drag-and-drop, the picker, or paste — the queue shows every file and its size.
- Set the Quality slider (1-100). AVIF is aggressive, so even 60-75 looks excellent on most images while saving maximum bandwidth.
- Convert the batch and follow each row's progress until every file reads "Converted".
- Export per file as they finish, or grab the whole batch with Download All / Download ZIP.
- "Re-select" resets the queue. When compatibility matters more than size, the AVIF to WebP converter brings files back to WebP.
FAQ
Is AVIF really better than WebP?
For most images, yes — AVIF is typically 20-30% smaller at the same quality. The gap is biggest on photos and complex gradients.
Why doesn't everyone use AVIF then?
Browser and platform support is newer and still incomplete. This converter lets you produce AVIF now, while WebP remains the fallback.
Are my images uploaded?
No — the conversion runs entirely in your browser, so nothing leaves your device.
Can I batch-convert WebP to AVIF?
Yes, add as many files as you need; the queue processes them one by one and Download ZIP exports the finished set.
What if I need WebP again?
The AVIF to WebP converter restores WebP output with the same quality controls.