Convert JPEG to AVIF
We turn JPEG into AVIF right in your browser — the file never goes to a server.
What you will lose
Nothing important: the target format does everything the source does.
How they differ
| JPEG | AVIF | |
|---|---|---|
| Lossless | no | yes |
| Lossy | yes | yes |
| Transparency | no | yes |
| Animation | no | yes |
| Released | 1992 | 2019 |
| Author | Joint Photographic Experts Group | Alliance for Open Media |
JPEG
Good at
- Compresses photos tightly, and the loss is hard to notice
- Opens literally everywhere, including old devices and printers
- Fast to encode and open, easy on the device
Awkward about
- Lossy: every re-save degrades the image a little more
- No transparency — it turns white or black
- Visible halos appear around text and sharp edges
Use it when
- Photos that will not be edited further
- When the file has to open for absolutely anyone
AVIF
Good at
- Compresses tighter than WebP — usually another 20–30 %
- Handles 10 bits per channel and high dynamic range
- Transparency and animation are both there
Awkward about
- Noticeably slower to encode than the others
- Support outside browsers is still thin
- On small images it sometimes loses to WebP on size
Use it when
- Large images on a site where weight matters
- When you have a fallback for older browsers
Common questions
- Does the file get uploaded to a server?
- Yes, this pair needs the server: browsers cannot encode that format. The file and the result are deleted within a couple of hours and never shared.
- Will transparency survive?
- Yes, AVIF supports transparency, so semi-transparent edges stay as they were.
- Can I get the original quality back afterwards?
- Yes, AVIF supports lossless compression, so you can go back to the original.
- How many files, and how large?
- Up to 30 files at a time, 50 MB each. No sign-up, no watermarks.