Convert HEIC to AVIF OnlineFree & Private
Convert your HEIC images from iPhone and iPad to AVIF, the most efficient image format available. AVIF delivers superior compression with HDR and wide color gamut support.
Drop an image here or browse files
Supports JPG, PNG, WebP, AVIF, HEIC, GIF, TIFF, BMP, and SVG
About This Conversion
What is HEIC?
HEIC (High Efficiency Image Container) is Apple's preferred image format, used by default on iPhones and iPads since iOS 11. HEIC provides excellent compression while supporting 16-bit color depth and alpha transparency. However, HEIC has limited support outside the Apple ecosystem.
What is AVIF?
AVIF (AV1 Image File Format) is a cutting-edge image format based on the AV1 video codec. It delivers the best compression efficiency available, supporting HDR, wide color gamut, 10/12-bit color depth, alpha transparency, and animation. AVIF is the most efficient image format for modern web use.
Why Convert HEIC to AVIF?
- You want the best compression — AVIF achieves the highest compression efficiency of any image format.
- You need HDR support — AVIF supports high dynamic range and wide color gamut for stunning visuals.
- You want cross-platform use — AVIF works on Chrome, Firefox, and Safari, unlike HEIC which is Apple-only.
- You are future-proofing your images — AVIF is the emerging standard endorsed by all major browser vendors.
HEIC vs AVIF: Comparison
| Feature | HEIC | AVIF |
|---|---|---|
| Compression Type | Lossy and lossless | Lossy and lossless |
| Transparency | Supported (alpha channel) | Full alpha channel |
| HDR Support | Limited | Full (HDR10, Dolby Vision) |
| Color Depth | Up to 16-bit per channel | 8-bit, 10-bit, 12-bit |
| Typical File Size | Smaller | Comparable or smaller |
| Best For | Apple devices | Maximum compression, modern web |
| Browser Support | Safari, iOS Photos; limited | Chrome 85+, Firefox 93+, Safari 16.4+ |
| Animation | Image sequences | Supported |
How to Convert HEIC to AVIF
1. Upload Image
Drag & drop or browse to select your HEIC file
2. Select Format
AVIF is pre-selected as output format
3. Convert
Click convert — processing happens in your browser
4. Download
Preview and download your converted AVIF file
All processing happens in your browser. Your files never leave your device.
Frequently Asked Questions
Is this HEIC to AVIF converter free?
Yes, Nice Converter is 100% free. Convert unlimited HEIC images to AVIF with no restrictions, no sign-up, and no watermarks.
Is my data safe? Do you upload my files?
All conversion happens in your browser using WebAssembly. Your files never leave your device — no uploads, no servers, no tracking.
Why would I convert HEIC to AVIF?
AVIF offers the best compression of any image format and works across Chrome, Firefox, and Safari. It is ideal for web use where maximum efficiency and modern features are needed.
How does AVIF quality compare to HEIC?
Both are modern formats with excellent compression. AVIF offers HDR support and wide color gamut, while HEIC has higher native color depth (16-bit). For most use cases, the visual quality is comparable.
Do all browsers support AVIF?
AVIF is supported by Chrome 85+, Firefox 93+, and Safari 16.4+, covering approximately 90% of browsers. This is much wider than HEIC's limited support.
What other formats can I convert HEIC to?
You can also convert HEIC to JPG for universal compatibility, to PNG for lossless quality, or to WebP for wide browser support. See our other converter pages.
Related Conversions
HEIC to JPG
Convert your HEIC images from iPhone and iPad to JPG format directly in your browser. JPG is universally supported, making it easy to share, edit, and use your Apple photos anywhere.
HEIC to PNG
Convert your HEIC images from iPhone and iPad to PNG format directly in your browser. PNG provides lossless quality, full transparency support, and universal tool compatibility.
HEIC to WebP
Convert your HEIC images from iPhone and iPad to WebP format directly in your browser. WebP offers excellent compression with 97%+ browser support, perfect for web optimization.
JPG to AVIF
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PNG to AVIF
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WebP to AVIF
Convert your WebP images to AVIF, the next-generation format with even better compression. AVIF builds on WebP's advantages with superior encoding efficiency and HDR support.