100% Client-side
Dedicated Converter
Convert HEIC to AVIF
Convert HEIC images to AVIF in seconds. Next-generation web delivery — up to 50% smaller than JPG with better quality. All processing happens in your browser — nothing is uploaded.
Format
AVIF
Compression
both
Alpha
Yes
HEIC→AVIF
LockedDrop HEIC files or click to browse
Output: AVIF · Extension .avif
85%
100% private · Runs in your browser · No sign-up
Why convert
Why convert HEIC to AVIF?
Optimized for next-generation web delivery
AVIF is next-generation web delivery — up to 50% smaller than JPG with better quality.
Wider compatibility
AVIF opens on more devices and platforms than HEIC. Chrome, Edge, Firefox, and Safari 16+.
Preserves what matters
The engine keeps the image dimensions, color profile, and (when supported) transparency intact.
Technical spec
HEIC vs AVIF
| HEIC | AVIF | |
|---|---|---|
| Full name | High Efficiency Image Container | AV1 Image File Format |
| Compression | lossy | both |
| Transparency | Yes | Yes |
| Animation | No | Yes |
| Browser support | Native on iPhone/Mac. Windows and Android need conversion. | Chrome, Edge, Firefox, and Safari 16+. |
| Best for | iPhone photos — roughly half the size of JPG at the same quality. | Next-generation web delivery — up to 50% smaller than JPG with better quality. |
FAQ
Common questions
Everything you need to know about converting HEIC to AVIF.