Convert JPG to AVIF
Turn JPG images into AVIF files, the smallest modern format.
Runs on your device. Your files are never stored.
Short answer
To convert JPG 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 416 KB 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
JPG vs AVIF
AVIF is the most efficient common format for photos, so it’s the best choice when every kilobyte on a web page counts. Fewer apps can open AVIF than WebP, which is why many sites serve AVIF with a JPG fallback.
| Feature | JPG | AVIF |
|---|---|---|
| Full name | JPEG (Joint Photographic Experts Group) | AV1 Image File Format |
| Introduced | 1992 | 2019 |
| Compression | Lossy | Lossy or lossless |
| Transparency | No | Yes |
| Animation | No | Yes |
| Best for | Photos to share, print or upload anywhere | 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 | JPG | AVIF | Change |
|---|---|---|---|
| A 2400 × 1350 photo | 416 KB | 12 KB | 35× smaller |
| A 1440 × 860 website screenshot | 105 KB | 28 KB | -73% |
About the two formats
JPG
JPG is the default format for photos. It throws away detail the eye barely notices to keep files small, and every device made in the last 30 years can open it.
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 JPG to AVIF
- 1Add your JPG files.
- 2Adjust the quality if you like.
- 3Download the AVIF files.
Questions
Do my files get uploaded?
No. JPG 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.
Should my website use AVIF or WebP?
AVIF makes smaller files at the same quality; WebP opens in more apps. Many sites serve AVIF first and fall back to WebP or JPG.