Image Conversion
Convert HEIF to AVIF Online — Free
Fast, free HEIF to AVIF converter. No registration required.
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How to Convert
1
Upload your .heif file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .avif file when it's ready.
What is HEIF?
HEIF is the standard name for the image container format used by Apple. While HEIC is the Apple-specific variant, HEIF is the broader ISO standard used across platforms.
Format Details
- Full Name
- High Efficiency Image Format
- Extension
- .heif
Key Features
- ISO standard
- Better than JPEG
- HDR support
- Small files
What is AVIF?
AVIF is a modern image format based on the AV1 video codec. It offers the best compression available, outperforming both WebP and JPEG.
Format Details
- Full Name
- AV1 Image File Format
- Extension
- .avif
Key Features
- Best compression
- HDR support
- Transparency
- Modern browsers
HEIF vs AVIF
| Feature | HEIF | AVIF |
|---|---|---|
| Full Name | High Efficiency Image Format | AV1 Image File Format |
| Extension | .heif | .avif |
| Best For | ISO standard | Best compression |
Frequently Asked Questions
Yes. You can convert up to 5 files per day completely free, with no watermark or registration required.
Most files convert in under 30 seconds. Larger files (over 500MB) may take 1-3 minutes.
No. Our converter uses optimized encoding settings by default to preserve the original quality.
Free users can convert files up to 100MB. Pro users can convert files up to 2GB.
Yes. Our converter works in any modern web browser on any device.