HEIC to AVIF Converter
Convert iPhone HEIC photos to AVIF — the next-generation image format
Drop HEIC files here
or click to browse
Frequently Asked Questions
How do I convert HEIC to AVIF?
Three steps:
- Drop your HEIC files onto the area above, or click to select
- Each file is decoded in your browser and re-encoded as AVIF at 92% quality
- Click Save next to each result to download
What's the difference between HEIC and AVIF?
Both use modern perceptual compression, but:
- HEIC — Apple/iOS default, based on HEVC (H.265) video codec
- AVIF — newer, based on AV1 video codec
When both formats encode an original image, AV1 typically reaches the same visual quality as HEVC at a smaller size. Converting an existing HEIC re-encodes already-compressed pixels, so expect a similar or slightly larger file — the real win is cross-platform support (Chrome, Firefox, Safari 17+, plus many Linux/server tools).
Why convert HEIC to AVIF?
Mainly for compatibility: HEIC only opens on Apple devices and a handful of apps, while AVIF plays in all modern browsers and many Linux/server tools. Conversion preserves the image quality but doesn't shrink the file — your HEIC is already efficiently compressed. If you need a smaller file, use the Image Compressor instead.
Other targets:
- Publishing pipelines that already accept AVIF
- Image-heavy websites aiming for the smallest payload
- Linux/server tools that don't have native HEIC support
Will the AVIF be smaller than my HEIC?
Usually not. iPhone HEIC photos are already highly compressed; this converter re-encodes them at 92% quality to preserve what you see, so the AVIF often comes out similar in size or slightly larger. This tool is about compatibility, not compression — to reduce file size, use the Image Compressor.
Do all browsers support AVIF?
AVIF is supported by:
- Chrome 85+ (August 2020)
- Firefox 93+ (October 2021)
- Safari 17+ (September 2023)
- Edge 85+
That covers ~94% of web users today. For older browsers, use a WebP or JPG fallback. AVIF is the format Google Photos and many large image-heavy sites use.
Does this work with .heif files too?
Yes — .heic and .heif use the same HEIF container, just different extensions. The converter accepts both.
How many files can I convert at once?
Up to 50 HEIC files in one batch. AVIF encoding is slower than JPG/WebP because of its complexity — large images can take up to a few minutes each.
Is this converter private?
Yes. All decoding and encoding happens locally in your browser using heic2any and @jsquash/avif. Your photos are never uploaded to a server.