Convert PNG to AVIF
Turn PNG images into AVIF files, the smallest modern format.
Runs on your device. Your files are never stored.
Short answer
To convert PNG to AVIF, add your files to FileFleet, adjust the quality if you like, and download the AVIF files, zipped if there are several. It runs in your browser, so nothing is uploaded. In our test, a 2400 × 1350 photo went from 4.10 MB to 12 KB as AVIF.
- Price
- Free
- Account
- None needed
- Your files
- Never stored
- Limits
- No daily limit, no watermark
- You get
- AVIF images, zipped if there are several
- Works on
- Phones and computers
PNG vs AVIF
AVIF keeps transparency too and usually makes the smallest file of all. Encoding is slower than other formats, so a large image can take a few seconds in your browser.
| Feature | PNG | AVIF |
|---|---|---|
| Full name | Portable Network Graphics | AV1 Image File Format |
| Introduced | 1996 | 2019 |
| Compression | Lossless | Lossy or lossless |
| Transparency | Yes | Yes |
| Animation | No (the APNG variant is rarely used) | Yes |
| Best for | Screenshots, logos, text and graphics with sharp edges | The smallest files for websites |
| Opens in | Every computer, phone, app and website | Current Chrome, Firefox, Edge and Safari; many apps can’t open it yet |
What happens to file size
| Test image | PNG | AVIF | Change |
|---|---|---|---|
| A 2400 × 1350 photo | 4.10 MB | 12 KB | 362× smaller |
| A 1440 × 860 website screenshot | 155 KB | 24 KB | 6× smaller |
About the two formats
PNG
PNG stores every pixel exactly, with no quality loss, and supports transparent backgrounds. That makes it ideal for graphics and screenshots, but photos saved as PNG are very large.
AVIF
AVIF uses compression from the AV1 video codec and usually makes the smallest image files of any common format. Browser support is broad, but desktop apps are still catching up.
How to convert PNG to AVIF
- 1Add your PNG files.
- 2Adjust the quality if you like.
- 3Download the AVIF files.
Questions
Do my files get uploaded?
No. PNG to AVIF runs entirely in your browser, so your files never leave your device. Close the tab and they're gone.
Is it really free?
Yes. No account, no daily limits and no watermark on your files.
Why does AVIF take longer than other formats?
AVIF’s encoder searches harder for savings. That costs a few seconds of your computer’s time and pays off in a much smaller file.