Convert HEIC to AVIF Online Free
Instantly convert your HEIC files to AVIF format right in your browser. No uploads, no registration, 100% free and private.
How to Convert HEIC to AVIF
Upload Files
Select your HEIC files by dragging and dropping or clicking to browse.
Choose Settings
AVIF is pre-selected. Adjust quality and metadata options if needed.
Download
Click Convert and download your AVIF files instantly.
Why Convert HEIC to AVIF?
Converting from HEIC to AVIF is useful when you need smaller file sizes and Chrome, Firefox, Safari 16+ support. HEIC (High Efficiency Image Container) files can be converted to AVIF (AV1 Image File Format) instantly using our browser-based converter — no uploads needed, completely free.
HEIC vs AVIF Comparison
| Feature | HEIC | AVIF |
|---|---|---|
| Compression | Lossy | Lossy |
| Transparency | Yes | Yes |
| Animation | Yes | Yes |
| Browser Support | Safari only | Chrome, Firefox, Safari 16+ |
| Typical File Size | Smaller (50% less than JPG) | Smallest (50% less than WebP) |
| Best For | iPhone/iPad photos, storage efficiency | Maximum compression, modern websites |
Frequently Asked Questions
Yes, completely safe. PhotoFormatLab processes your files entirely in your browser using JavaScript. Your images are never uploaded to any server — the conversion happens on your device. No one else can see or access your files.
AVIF uses lossy compression, so there may be a very slight quality reduction. However, at our default quality setting of 90%, the difference is virtually imperceptible. You can adjust the quality slider to find the perfect balance between file size and quality.
Yes! You can drag and drop multiple files at once, or use our batch converter to process many files simultaneously. All conversions run in parallel on your device for fast results.
HEIC (High Efficiency Image Container) uses lossy compression and is best for iphone/ipad photos, storage efficiency. AVIF (AV1 Image File Format) uses lossy compression and is best for maximum compression, modern websites.
There's no hard limit since processing happens on your device. However, very large files (over 50MB) may take longer to process depending on your device's capabilities. For best performance, we recommend files under 25MB.
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