Convert PNG to AVIF — free, private, in your browser
Decoded with OxiPNG, encoded with libavif — entirely on your device. No upload, no queue, no watermark.
Why convert PNG to AVIF?
For web delivery, AVIF crushes PNG on file size while keeping transparency — often 80–90% smaller for photographic content and screenshots. Convert locally in your browser below.
How to convert PNG to AVIF
- 1Drop your PNG 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.
PNG vs AVIF
| PNG | AVIF | |
|---|---|---|
| Introduced | 1996 (PNG Development Group (W3C)) | 2019 (Alliance for Open Media) |
| Compression | Lossless | Lossy + lossless |
| Transparency | Yes | Yes |
| Animation | No | Yes |
| HDR / wide gamut | No | Yes |
| Browser display | All browsers | All modern browsers |
| Typical use | Screenshots | Hero images and photography on fast websites |
About PNG full guide →
Lossless with full transparency. The standard for screenshots, logos and UI graphics.
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 PNG 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 PNG 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 PNG?+
Yes — use the AVIF to PNG converter, or just change the output format dropdown after dropping files.