ConvertWhat happens when you convert HEIF to AVIF
- HEIF is another name for HEIC; files ending in .heif work here.
- iPhone photos use wide-gamut Display P3 color; it's converted to standard sRGB so colors look right everywhere.
- Works in Safari, Chrome and Edge. Firefox can't open HEIC yet.
- Both formats are lossy. Re-encoding loses a little detail, so keep the quality high if the image will be edited again.
- Transparency is kept.
- Creating AVIF works in Chrome, Edge and Safari.
HEIC vs AVIF
| Feature | HEIC | AVIF |
|---|---|---|
| Compression | Lossy | Lossy or lossless |
| Transparency | Yes | Yes |
| Animation | No | Yes |
| Colors | 1B+ | 1B+ |
| Best for | iPhone and iPad photos | Modern websites |
How to convert HEIF to AVIF
- Drop your HEIF files on the box above, or click it to choose files. You can add many at once.
- Adjust the options if you want. The defaults work well for most files.
- Click Download for each AVIF file, or "Download all" to get a ZIP.
Frequently asked questions
Is it safe to convert my files here?
Yes. Conversion happens entirely in your browser. Your files are never uploaded to a server, so nobody else can see them.
Is it free? Are there limits?
It's completely free, with no sign-up, watermarks or daily limits. The only limit is your device's memory for very large files.
Can I convert many HEIF files at once?
Yes. Drop as many files as you like; they're converted one after another and you can download them all as a ZIP.
Will converting HEIF to AVIF reduce quality?
AVIF is lossy, so some fine detail is removed to make the file smaller. At the default quality it's hard to see; raise the Quality slider to keep more.
Does AVIF keep transparency?
Yes, AVIF supports transparency and it's kept.
Which browsers does the HEIF to AVIF converter work in?
It works in the latest Safari, Chrome and Edge, on computers and phones.