100% local · no uploads · free

Convert HEIC to AVIF

Converting HEIC to AVIF is worth doing when the destination matters more than the source. HEIC is built for iPhone camera storage, efficient but rejected by a great deal of software. AVIF is built for the smallest modern web images, at the cost of slower encoding. Which one you want depends entirely on where the image is going next.

Technically the closest match, since HEIC and AVIF are cousins built on video codecs and both compress far harder than JPG. Quality holds up well through this conversion, and support, while narrower than JPG, is considerably better than HEIC's.

AVIF is the largest saving available from an already compressed source, frequently half the size of JPG at matching quality. Encoding is noticeably slower and support covers current browsers but little else, so it suits images you are delivering over the web rather than files someone else must open.

HEIC is decoded in the browser, which is the part most converters cannot do without sending your photo to a server first. Apple's format is unpacked locally to raw pixels and re-encoded, so iPhone photos convert without an app and without leaving your device.

Open the HEIC to AVIF converter →

Files never leave your device
No size limits
Free, no sign-up

Frequently asked questions

Why do so many sites reject HEIC files?

HEIC is comparatively recent and licensing has slowed its adoption, so many websites, form portals and older applications never added support. Converting to a widely accepted format is usually faster than arguing with the upload form.

Is the HEIC to AVIF converter free?

Yes. There is no account, no watermark on the output, no daily limit and no paid tier holding features back.

My browser will not produce AVIF. Why?

AVIF encoding requires a Chromium based browser. Where it is unavailable the tool falls back to a supported format automatically rather than failing silently.