Turn heavy PNG images into small AVIF files with the transparent background kept - need it lossless? Compress PNG keeps every pixel.
Need the AVIF back as a PNG later? AVIF to PNG keeps the transparency too.
PNG is lossless, which makes it heavy.
AVIF keeps the same look and the transparent background in a fraction of the bytes - often 70-90% less for photos and artwork.
That means faster pages, lighter apps and quicker uploads.
| PNG | AVIF | |
|---|---|---|
| Compression | Lossless | Lossy or lossless (AV1) |
| Typical size | 100% | 10-30% for photos and art |
| Transparency | Yes | Yes |
| Animation | APNG only | Yes |
| Best for | Editing, pixel-exact graphics | Websites and apps |
Test images with transparency are in the PNG sample files.
Drop your PNG files into the box, keep quality 70 or pick a preset, and press Convert to AVIF. More than two files come as a ZIP.
Yes. The alpha channel is kept, soft edges included. Pick Fill background if you want a solid colour instead.
Photos and artwork often shrink by 70-90%. Flat graphics with few colours save less, and tiny icons may not shrink at all.
Most browsers cannot write AVIF yet, so your browser sends one PNG copy over HTTPS to our server, which encodes it and deletes it the moment you download. If your browser can write AVIF, nothing is uploaded.
Not by default - AVIF here is lossy, but at quality 80+ the difference is very hard to see. Keep the PNG as your master copy for editing.
Standard colour detail (4:2:0) stores colour at half resolution. Pick Full colour (4:4:4) for crisp coloured edges.
Chrome, Edge, Firefox, Opera and Safari 16.4 and later. Serve a WebP or PNG fallback for older ones.