Convert HEIC to AVIF - Image Converter
Free online tool to convert HEIC to AVIF image format. Fast, private, browser-based conversion.
Drop image files here or click to browse
JPG、PNG、WebP、BMP、GIF、SVG、AVIF、HEIC、TIFF、PSD に対応
Supported Formats
Most common lossy image format
Lossless format with transparency
Modern format with excellent compression
Uncompressed bitmap format
Supports animation and transparency
Icon format for websites
Scalable vector graphics
Next-gen format with superior compression
Features
Privacy First
All conversions happen in your browser. Files never leave your device.
No File Size Limit
Convert images of any size without restrictions.
Batch Conversion
Convert multiple images at once.
Quality Control
Adjust output quality for optimal file size.
Why Convert HEIC to AVIF?
Converting HEIC to AVIF re-encodes the image. Both formats use lossy compression, so choose AVIF for better compatibility or smaller file size.
高効率画像コンテナ (HEIC/HEIF)
非可逆圧縮（HEVCベース）
HEIC は iOS 11 以降の Apple のデフォルト画像フォーマットです。HEVC (H.265) 圧縮を使用して、同等の品質で JPEG の約 50% のファイルサイズを実現します。
AVIF (AV1 Image File Format)
Lossy/Lossless
Next-generation format with excellent compression efficiency.
How to Convert HEIC to AVIF
- Click the upload area or drag and drop your image file.
- Select the output format from the dropdown.
- Adjust the quality slider if available.
- Click "Convert All" to start processing.
- Download your converted image file.
HEIC vs AVIF — Format Comparison
| Format | Type | Quality | File Size | Compatibility | Best For |
|---|---|---|---|---|---|
| HEIC | 非可逆圧縮（HEVCベース） | Good (adjustable) | Small | 限定的（Apple デバイス） | iPhone の写真、Apple デバイス |
| AVIF | Lossy/Lossless | Good (adjustable) | Small | Growing (modern browsers) | Next-gen web images, high compression |
Frequently Asked Questions
Is converting HEIC to AVIF free?
Yes, our HEIC to AVIF converter is completely free. All processing happens in your browser.
Will I lose image quality converting HEIC to AVIF?
ImageConverter.conversion.faq2LossyToLossyAnswer
How long does HEIC to AVIF conversion take?
Conversion is nearly instant for most images. Large images may take a few seconds.
Is my image file safe during HEIC to AVIF conversion?
Absolutely. All processing happens locally in your browser. Your images are never uploaded to any server.
Can I batch convert multiple HEIC files to AVIF?
Yes, you can upload and convert multiple HEIC files to AVIF format simultaneously.