Convert HEIC to AVIF Online
Convert Apple HEIC photos to open next-gen AVIF format. Free, private, browser-based conversion with no server uploads. Processed locally in your browser memory — your photos never leave your device.
Drop an image here
or choose files (single or batch)
JPG · PNG · WebP · AVIF · HEIC
Why Convert HEIC to AVIF?
Move from Apple's proprietary HEIC container to the open-standard AVIF format for modern web delivery without losing high-efficiency compression.
Pro Quality Tip: 65% matches Apple's native photographic clarity.
Technical Comparison: HEIC vs AVIF
| Feature Specification | HEIC (HEIC) | AVIF (AVIF) |
|---|---|---|
| Full Name | HEIC (High Efficiency Image Container) | AV1 Image File Format |
| File Extension | .heic | .avif |
| MIME Type | image/heic | image/avif |
| Compression Type | Lossy | Lossy |
| Alpha Transparency | Not Supported | Supported |
| Developer / Creator | MPEG / Apple Inc. | Alliance for Open Media (AOMedia) |
| Encoding Algorithm | HEVC / H.265 Intra-frame | AV1 Video Codec Intra-frame |
| Color Depth Support | Up to 16-bit color depth | 10-bit and 12-bit High Dynamic Range (HDR) |
| Relative File Weight | 50% smaller than legacy JPEG | 50% smaller than JPG; 20% smaller than WebP |
| Browser Compatibility | Apple Safari only; Incompatible with Chrome/Firefox native render | 93%+ (Chrome, Edge, Firefox, Safari 16+) |
How to Convert HEIC to AVIF in 3 Simple Steps
Select or Drop Image
Drag your HEIC file into the converter or click to browse from your device.
Adjust Settings (Optional)
Fine-tune compression quality or scale dimensions while keeping aspect ratios locked.
Download AVIF
Click Convert and save your optimized AVIF image instantly to your computer or phone.
HEIC to AVIF FAQs
Answers to common questions about converting HEIC into AVIF
How do I convert HEIC to AVIF without uploading to a server?
Our converter runs entirely inside your web browser using HTML5 Canvas and WebAssembly. When you drag in your HEIC file, your device processor decodes the pixels and generates the AVIF file in temporary local memory. Your image never travels over the internet.
Will converting from HEIC to AVIF reduce image quality?
Converting to AVIF uses lossy compression. You can use our quality slider (set to 85% by default) to achieve the exact balance of sharp visual quality and lightweight file size you need.
Why choose this HEIC to AVIF converter over cloud tools?
Most online tools upload your confidential photos to remote cloud servers, exposing you to privacy risks, queue wait times, and file size limits. ConvertImage processes everything locally in milliseconds with zero uploads, no watermarks, and complete privacy.
Can I batch convert multiple HEIC files to AVIF?
Yes! You can drag and drop multiple HEIC files at once. The converter queues and processes each image through background Web Workers for smooth multitasking without freezing your browser.