PNG to AVIF — Online Image Converter
Convert PNG to AVIF online. Private, client-side — no uploadrequired. Fast batch converter.
About PNG to AVIF
PNG holds exact pixels with alpha support in large files. AVIF re-encodes the image with the AV1 codec in lossy or lossless mode, cutting bytes sharply for web delivery. Transparency carries over because both formats keep an alpha channel. Older viewers may not open the result, so keep a PNG copy for sharing and archiving. For graphics with text, lossless mode preserves edges; for photos, a mid-range quality setting balances size and fidelity. Stills carry no animation frames.
Why convert PNG to AVIF?
- Flexible size with AVIF lossy or lossless compression - lossy for smaller files, lossless for exact quality.
- Keep animation and transparency where supported.
- Private, no upload - runs in your browser.
PNG vs AVIF
| Animation | No | Yes |
|---|---|---|
| Transparency | Yes | Yes |
| Compression | lossless | lossy or lossless |
| Typical use | PNG stores lossless images with transparency support. | AVIF encodes stills and sequences with the AV1 codec for compact files. |
When not to convert PNG to AVIF
- Skip AVIF for archival masters: lossy compression discards detail, so keep the PNG original.
- No motion to preserve: PNG is a still, so pick AVIF for size or compatibility rather than animation.
Limits
Starting point: PNG - Lossless graphics with transparency support. Lossless quality means larger files than JPEG. Older viewers may not open it; keep a JPEG or PNG copy for sharing. Set the quality slider near 80-90 for AVIF photos from PNG, and keep dimensions matched to the source.
How conversion works
Conversion runs entirely in your browser with the WASM image engine. Files never leave your device.