Convert iPhone HEIC photos to AVIF free online. Next-gen compression — even smaller than WebP. No upload to any server, no signup, 100% private.
HEIC is Apple's proprietary format — excellent on iPhone, but unsupported on most of the web. AVIF is the next-generation image format backed by the Alliance for Open Media: it delivers superior compression to both JPG and WebP, typically producing files 50% smaller than JPG and 20–30% smaller than WebP at the same visual quality. If you are optimizing iPhone photos for modern websites, AVIF is the best choice for maximum performance.
Drag and drop your HEIC or HEIF photo into IMGVO, or click to browse. Works with iPhone photos directly. Supports multiple files at once.
IMGVO detects the HEIC format and converts it instantly to AVIF in your browser. No waiting, no server involved.
Click Download to save the AVIF to your device. Works on iPhone, Android, Windows, and Mac. No watermark, no signup.
| Universal compatibility | ❌ Apple only | ✅ Modern browsers |
| Compression efficiency | ✅ Excellent | 🏆 Best |
| Transparency support | ❌ No | ✅ Yes |
| Typical file size vs JPG | ~50% smaller | ~50% smaller |
| Best for web use | ❌ Not ideal | 🏆 Ideal |
For most web use cases, yes. AVIF offers superior compression — typically 20–30% smaller than WebP at the same visual quality, and up to 50% smaller than JPG. The tradeoff is that AVIF encoding is slower and browser support, while now widespread (Chrome, Firefox, Safari 16+, Edge), is not as universal as WebP.
Yes. AVIF supports full alpha channel transparency. HEIC photos from iPhone cameras don't contain transparency, so the converted AVIF will have a solid background — but you can add transparency afterward using a background removal tool.
Quality 75–85% is ideal for web use — AVIF at this level is visually indistinguishable from the original while being dramatically smaller. For archival, quality 90–95% is recommended. IMGVO defaults to 80% which is a great balance for web delivery.
Yes. IMGVO supports batch conversion. Drop multiple HEIC files at once and download them individually or as a single ZIP archive.
100% safe. IMGVO processes all files directly in your browser — nothing is ever uploaded to any server. Your photos never leave your device.