HEIC to AVIF Converter

Three steps:

1. Drop your HEIC files onto the area above, or click to select
2. Each file is decoded in your browser and re-encoded as AVIF at 92% quality
3. Click Save next to each result to download

Both use modern perceptual compression, but:

• HEIC — Apple/iOS default, based on HEVC (H.265) video codec
• AVIF — newer, based on AV1 video codec

AVIF typically produces files ~20% smaller than HEIC at the same visual quality, with wider cross-platform tooling support (Chrome, Firefox, Safari 17+, plus many Linux/server tools).

If you need maximum compression at high quality, AVIF beats HEIC by ~20% on typical photos. For web delivery or long-term archiving, AVIF gives the smallest files at 90%+ quality. For everyday sharing the savings are modest — about 100 KB on a 500 KB photo — but they add up at scale.

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

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.

Yes — .heic and .heif use the same HEIF container, just different extensions. The converter accepts both.

Up to 10 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.

Yes. All decoding and encoding happens locally in your browser using heic2any and @jsquash/avif. Your photos are never uploaded to a server.