Convert iPhone HEIC photos to modern AVIF format. Runs entirely in your browser. No server uploads, no registration required.

HEIC is the default photo format on Apple devices (iPhone, iPad, Mac). AVIF (AV1 Image File Format) offers comparable or better compression than HEIC but with broader browser support and an open, royalty-free standard. Converting HEIC to AVIF gives you a modern, web-optimized format.
AVIF supports millions of colors, alpha transparency, HDR, and both lossy and lossless modes. It is supported in Chrome 85+, Firefox 93+, Safari 16.4+, and Edge 121+. AVIF files are typically similar in size to HEIC but compatible with web browsers.
This conversion is ideal for publishing iPhone photos on the web with maximum compression and quality. For broader device compatibility (including older browsers), consider converting to WebP or JPG instead.
All processing happens locally in your browser — nothing is sent to any server. No registration, no limits, no watermarks.
Businesses, developers, and creators worldwide rely on image format compatibility. Whether you are preparing product images for Amazon, eBay, Etsy, Shopify, optimizing graphics for WordPress, Wix, Squarespace, or converting photos for government portals worldwide, having the right format matters.
Modern web standards increasingly favor efficient formats. Google PageSpeed Insights and Core Web Vitals metrics reward pages that use optimized images. Converting HEIC to AVIF can directly improve your Largest Contentful Paint (LCP) score, which impacts both search rankings and user experience.
For email marketing campaigns and social media, AVIF provides excellent compression while maintaining visual quality. Whether you are a freelancer, small business owner, or enterprise user, this converter handles your image conversion needs reliably and securely.
| Feature | HEIC | AVIF |
|---|---|---|
| Lossy compression | ||
| Lossless compression | ||
| Transparency (alpha channel) | ||
| Animation support | ||
| Web browser support | Safari 13+ (macOS / iOS) | Chrome 85+, Firefox 93+, Edge 85+, Safari 16.4+ |
| Color depth | 8/10-bit, HDR | 8/10/12-bit, HDR |
| Compact file size | ||
| Metadata (EXIF) |
The quality slider lets you set a value from 60% to 95%. Higher values mean better image quality but larger file sizes.
Both HEIC and AVIF use advanced lossy compression (HEVC and AV1 respectively). AVIF typically produces similar or slightly smaller files than HEIC with comparable visual quality.
AVIF and HEIC use different codecs but achieve similar compression efficiency:
iPhone photo (12 MP)
HEIC: 2.1 MB → AVIF: 1.8 MB
Portrait mode
HEIC: 1.5 MB → AVIF: 1.3 MB
Landscape photo
HEIC: 3.2 MB → AVIF: 2.7 MB
The main benefit is web compatibility. AVIF is supported in all modern browsers, while HEIC is limited to Apple devices.

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