Convert WebP to AVIF — free, private, in your browser
Decoded with libwebp, encoded with libavif — entirely on your device. No upload, no queue, no watermark.
Why convert WebP to AVIF?
Convert WebP (google's web format: ~30% smaller than jpeg, supports transparency and animation) to AVIF — the conversion can preserve every pixel, and transparency carries over. Drop files below: decoding and encoding run entirely in your browser via WebAssembly, so images are never uploaded to a server.
How to convert WebP to AVIF
- 1Drop your WebP files onto the tool above (or click to browse, or paste from the clipboard). Batches are fine.
- 2AVIF is pre-selected as the output. Adjust the quality slider — 80 is visually lossless for most photos. Optionally cap the maximum dimension to also downscale.
- 3Each file converts in your browser and shows its new size. Download files individually or grab everything as a ZIP.
WebP vs AVIF
| WebP | AVIF | |
|---|---|---|
| Introduced | 2010 (Google) | 2019 (Alliance for Open Media) |
| Compression | Lossy + lossless | Lossy + lossless |
| Transparency | Yes | Yes |
| Animation | Yes | Yes |
| HDR / wide gamut | No | Yes |
| Browser display | All browsers | All modern browsers |
| Typical use | Website and e-commerce images | Hero images and photography on fast websites |
About WebP full guide →
Google's web format: ~30% smaller than JPEG, supports transparency and animation.
About AVIF full guide →
The best compression available in browsers today — often half the size of JPEG.
Frequently asked questions
Is it safe to convert WebP to AVIF online?+
With EditItAll, your files are never uploaded: decoding and encoding run inside your browser using WebAssembly (Squoosh-grade codecs (MozJPEG, libwebp, libavif, libjxl, OxiPNG) to decode, Squoosh-grade codecs (MozJPEG, libwebp, libavif, libjxl, OxiPNG) to encode). The images stay on your device from start to finish, and the whole thing works offline once the page has loaded.
Will converting WebP to AVIF lose quality?+
AVIF supports both lossy and lossless modes. At the default settings EditItAll uses visually transparent quality; push the slider to 100 for lossless where supported.
Is there a file size or count limit?+
No hard limits and no accounts — processing uses your own device's memory and CPU, so very large images are only constrained by your browser (multi-hundred-megapixel images may fail on low-memory devices). Batch as many files as you like; they are processed in sequence.
Can I convert AVIF back to WebP?+
Yes — use the AVIF to WebP converter, or just change the output format dropdown after dropping files.