HEIC to AVIF Converter
Modern AVIF image conversion. Superior web compression processed locally.
Convert HEIC photos to next-generation AVIF images free in your browser. AVIF delivers high visual quality at significantly smaller file sizes than traditional formats.
Convert HEIC to AVIF Online Free — Up to 50% Smaller Than JPG
Looking for the highest efficiency web image format available? HEIC to AVIF Converter transforms Apple HEIC photos into next-generation AVIF (AV1 Image File Format) images free in your browser.
AVIF is an open, royalty-free image standard developed by the Alliance for Open Media (AOMedia). It delivers up to 50% smaller file sizes than JPEG and 20% smaller than WebP at identical visual quality, while supporting 10-bit and 12-bit HDR dynamic range color.
📉 Maximum Compression
AV1 codec architecture yields up to 50% smaller files than JPEG without visible blockiness.
🌈 10-Bit & HDR Support
Preserves wide color gamut dynamic range from iPhone camera sensors without clipping.
🔒 Local WASM Execution
Your high-resolution photos are converted locally in browser memory. 0 cloud uploads.
AVIF vs HEIC vs WebP: Key Comparison
While HEIC uses the proprietary HEVC (H.265) video codec, AVIF uses the open-source AV1 codec. AVIF is supported out-of-the-box by Chrome, Firefox, Edge, and Safari 16.4+ on both desktop and mobile.
Converting HEIC to AVIF is ideal for web developers building modern high-speed web apps where bandwidth and page load times are paramount.
How to Convert HEIC to AVIF — 4 Simple Steps
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Add your HEIC filesClick “Add files” or drag & drop HEIC/HEIF photos — batch up to 500 files at once.
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Set your optionsPick quality — AVIF stays small even at high settings — and keep EXIF/GPS with “Preserve Metadata”.
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ConvertPress “Convert all” — WebAssembly processes everything on your device, with no uploads.
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DownloadSave your AVIF files individually or as a single ZIP.
Privacy by design: all conversion runs locally in your browser, so your photos never leave your computer.
HEIC vs AVIF — Which Should You Choose?
| Format | File size | Quality | Transparency | Best for |
|---|---|---|---|---|
| HEIC (source) | Small | Excellent · 10-bit | No | iPhone storage |
| AVIF (output) | Smallest | Excellent · lossy/lossless | Yes | Modern web & apps |
| WebP | Very small | Excellent | Yes | Web |
| JPG | Small | Very good · lossy | No | Universal sharing |