Convert HEIC to AVIF Online — Apple Photos to Open Royalty-Free AVIF
Convert Apple proprietary HEIC photos into the open, royalty-free AVIF standard supported across Chrome, Firefox, Safari, and Edge. Retain high dynamic range and deep color accuracy with unmatched compression efficiency.
How to convert HEIC to AVIF online without uploading?
To convert HEIC to AVIF privately in your browser: 1. Drag and drop your HEIC file into the workspace below. 2. Your browser's WebAssembly and Canvas engine decodes and re-encodes the image locally in device RAM. 3. Click Download AVIF to immediately save your converted image without uploading the file.
When converting HEIC to AVIF on llmscope.link, your files are decoded and re-encoded entirely within your computer’s browser sandbox via the HTML5 Canvas API and WebAssembly. No image files or telemetry packets are ever uploaded, logged, or retained on any remote server.
| Specification | HEIC (Source) | AVIF (Target) |
|---|---|---|
| Compression Mechanism | Apple HEVC / H.265 patent-encumbered codec | Alliance for Open Media AV1 open standard codec |
| Alpha Transparency | Supported | Supported |
| Animation Support | Supported | Supported |
| Browser Support | Safari / Apple ecosystem only | All modern browsers (Chrome, Safari, Firefox, Edge) |
| Typical Data Delta | 10% to 20% smaller than HEIC at matched perceptual quality | |
- Publishing iPhone photography to the open web without royalty encumbrance
- Next.js high-performance web galleries
- Cross-platform digital art distribution
Upload iPhone HEIC
Select the HEIC photo taken on your iPhone or iPad.
Select AVIF quality
Choose your desired AVIF quality level (75-85% recommended).
Process client-side
Browser decodes HEIC via WebAssembly and encodes the AVIF stream in memory.
Download AVIF
Save your royalty-free, next-gen web image.
Q:Why convert HEIC to AVIF instead of JPG?
AVIF produces files that are up to 60% smaller than JPG while maintaining wide color gamuts and HDR metadata that JPG completely discards.