HEIC to AVIF converter
Convert HEIC to AVIF in seconds, free and unlimited. No upload, no sign-up, no watermark: your image never leaves your device.
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Quick answer: To convert HEIC to AVIF, add the HEIC file to the iHateFiles HEIC to AVIF converter and press Convert. The conversion runs in your browser, so the file is never uploaded, and it is free with no sign-up, watermark or size limit. AVIF supports transparency, which HEIC never had. That helps if you plan to cut the background out afterwards.
Should you convert HEIC to AVIF?
A safe conversion: HEIC and AVIF are both lossless, so this is a change of container rather than a change to the picture.
Both HEIC and AVIF are lossy
Going from HEIC to AVIF re-encodes material that has already been compressed once, so the AVIF encoder is working from the HEIC artefacts rather than the original. Set the quality high: this is the one conversion where being generous costs little and being mean shows immediately.
AVIF supports transparency, but there is none to recover
AVIF can store an alpha channel and HEIC cannot, so nothing is gained here automatically. The result is fully opaque. Transparency has to be cut in an editor; no converter can work out which parts of a HEIC were meant to be see-through.
HEIC and AVIF side by side
| HEIC | AVIF | |
|---|---|---|
| Compression | Lossy | Lossy |
| Transparency | No | Yes |
| Animation | No | No |
| Written here | No | Yes |
What usually goes wrong
About the HEIC. This is the single most common conversion people need: a photo taken on an iPhone that no one else can open. Converting to JPG solves it, at the cost of some file size.
About the AVIF. Reading AVIF is nearly universal; writing it is not. A browser without an encoder quietly hands back a PNG instead of refusing, so the conversion looks as though it worked. Current Chrome on macOS is one of them. This site checks for a real encoder first and says so when there is none.
How to convert HEIC to AVIF
- Add your HEIC file. It is read from your disk and stays there.
- Check the settings. The output format is already set to AVIF.
- Press convert and the AVIF file is saved back to your device.
Questions
How do I convert HEIC to AVIF?
Open this page, add your HEIC file, and press convert. The file is decoded and re-encoded by your own browser and saved back to your device. Nothing is uploaded.
Is this HEIC to AVIF converter free?
Yes, completely. There is no account, no sign-in, no watermark and no daily limit, because there is no server doing the work. Your own device does it.
Are my files uploaded anywhere?
No. There is no upload endpoint. The conversion runs inside this browser tab, so your file never leaves your device. You can open your browser's network panel and watch: nothing carrying your file is sent.
Is there a file size limit?
No fixed limit. Because the work happens on your machine there is no server quota. The only ceiling is your own device's memory, which for video means very large files may be slow.
Will converting to AVIF lose quality?
AVIF is a lossy format, so some detail is discarded. The quality control on this page decides how much. The default is set high enough that most people cannot see the difference.
Can I convert several HEIC files at once?
Yes. Add as many as you like and they are converted one after another, then offered as a single ZIP.