HEIC to AVIF
Convert HEIC to AVIF in your browser. Nothing's uploaded.
Runs in this tab. The file stays here.
This runs in your browser. Nothing is uploaded.
Format hubs: HEIC · AVIF · Convert
About HEIC to AVIF
Converts HEIC to AVIF in your browser. Apple's default still format on iPhone. Output is AVIF. Nothing is uploaded.
HEIC is apple's default still format on iPhone. AVIF is often smaller than WebP at the same viewing size. This page is only that pair. It isn't a generic dump box that guesses the destination after an upload. If you have a different container, use that format's hub instead of forcing the file through the wrong decoder.
The still is read into memory and converted with a HEIC decoder compiled to WebAssembly, then a still encoder in the tab. You can open the network tab first: you should see this origin load, not a POST of the file. After the page (and encoder, if this is media) has loaded, wifi can go off. That's the whole product, not a badge.
AVIF is a lossy target, and the source is already compressed once. Re-encoding throws away some detail. I won't call the result identical to the source. If you need a lossless container, this is the wrong pair, pick PNG or FLAC or WAV where those exist. Quality sliders on stills are honest: lower means more of the picture is discarded.
Related conversions sit on this same origin. HEIC to another destination, or another source into AVIF, are separate pages so the titles stay specific. The HEIC hub and the AVIF hub list every pair I actually ship. Missing pairs are missing because the encoder or decoder isn't here, not because they are paid.
Start from the HEIC hub if you're leaving this format, or the AVIF hub if you need to arrive in it. Those pages are indexes, not upload forms. A generic dropdown still exists under Video convert and Audio convert when you would rather pick the destination after you drop the file. Stills use jSquash or canvas; HEIC is the one exception that needs its own decoder. You can disconnect after that core has loaded.
How to use HEIC to AVIF
- 1Drop a HEIC file onto the panel, or click to browse. Other formats belong on their own pair pages.
- 2Set quality if you care about size. Higher keeps more of the picture.
- 3Click Convert & download. The AVIF file saves on this device.
What it won't do
- Input is HEIC (image/heic,image/heif,.heic,.heif). A different container belongs on its own pair.
- Live Photos convert as the still. The motion clip is dropped.
Common questions
Does converting HEIC to AVIF upload the file?
No. This is a static page. The still stays in the tab. The network panel should show this origin, not a POST of your HEIC file.
Will HEIC to AVIF look or sound the same?
Close, if you keep quality high, not identical. AVIF compresses. A second generation on top of HEIC is a real cost. If the result looks chewed, raise quality or pick a lossless pair.
Why is there a separate HEIC to AVIF page instead of one converter?
Searchers type this pair. A generic convert tool with a dropdown is easy to build and easy to bury. Each pair is its own URL, its own title, and a file picker that expects HEIC. The generic pickers still live at video convert and audio convert if you want a dropdown.
Can I convert AVIF back to HEIC on this site?
Not as AVIF → HEIC. I decode HEIC; I don't write HEIC. Use the format hub for what actually exists.
Related tools
Why this one doesn't upload your file
There is no server to upload to. This page is a static file, and the work happens in your browser using the same graphics and WebAssembly code that renders every other site you visit. Your file is read from disk into memory, processed, and handed back as a download. Once the page has loaded you can disconnect from the network entirely and it keeps working. The longer explanation