Your iPhone captures photos in HEIC format — Apple's efficient but platform-locked format. AVIF takes that efficiency further: built on the open AV1 codec, it delivers even smaller files than HEIC while working across every platform and modern browser. Think of it as upgrading from Apple's proprietary compression to the web's universal standard. Same great quality, broader compatibility, smaller files.
Key Benefits
Smaller Than HEIC
AVIF typically achieves 20-30% better compression than HEIC/HEIF at the same visual quality — making your iPhone photos even smaller.
Universal Compatibility
While HEIC is mostly an Apple format, AVIF works across all platforms and modern browsers without special codecs.
Privacy First
Your iPhone photos are decoded and re-encoded entirely in your browser using the heic2any library. Nothing leaves your device.
Future-Proof Format
AVIF is backed by the Alliance for Open Media (Google, Mozilla, Apple, Netflix) — it's the format the web is moving toward.