Convert HEIC to AVIF
Free, instant and private — your HEIC files are converted right in your browser and never uploaded to a server.
How to convert HEIC to AVIF
- Step 01
Add your HEIC files
Drop them into the box above or click to browse. You can add several files at once.
- Step 02
Conversion starts instantly
It runs in your browser using its built-in image engine — no upload, no queue, no waiting.
- Step 03
Download your AVIF files
Save each file individually or grab them all at once. Done.
Why convert HEIC to AVIF?
HEIC and AVIF are both modern, highly efficient formats, but HEIC is mainly readable on Apple devices while AVIF is fully supported across every modern browser and a growing number of apps. Converting your iPhone photos to AVIF keeps roughly the same tiny file size while making them open everywhere on the web. It runs entirely in your browser — your photos are never uploaded.
HEIC vs AVIF at a glance
HEIC is Apple's default photo format — roughly half the size of JPG at the same quality, but barely supported outside Apple devices. AVIF is the newest mainstream image format — outstanding compression, but support outside browsers is still patchy.
| Property | HEIC | AVIF |
|---|---|---|
| Extension | .heic, .heif | .avif |
| Full name | High Efficiency Image Format | AV1 Image File Format |
| First released | 2015 | 2019 |
| Developed by | MPEG (popularized by Apple) | Alliance for Open Media |
| Compression | Lossy | Lossy |
| Transparency | Yes | Yes |
| Animation | No | Yes |
| Best for | iPhone and iPad photos — high quality at half the size of JPG | next-generation web images with maximum compression |
HEIC to AVIF — frequently asked questions
Is this HEIC to AVIF converter really free?
Yes — completely free, with no sign-up, no watermarks and no daily limits.
Are my HEIC files uploaded to a server?
No. The conversion happens entirely on your device using your browser's built-in image engine. Your HEIC files never leave your computer or phone — which is also why the conversion is nearly instant.
Will I lose quality converting to AVIF?
AVIF uses lossy compression, so the image is re-encoded at high quality (92%). For photos the difference is practically invisible; for text-heavy graphics or logos, a lossless format like PNG preserves sharp edges better.
Will the AVIF be the same size as the HEIC?
Roughly, yes — both use similarly advanced compression, so file sizes are usually comparable. The real win is compatibility, not extra savings.
Why convert HEIC to AVIF instead of JPG?
AVIF keeps a much smaller file size than JPG while staying fully supported on the web — the closest like-for-like upgrade to HEIC's efficiency, just usable outside Apple's ecosystem.