AVIF Converter Pro
Convert images to the modern AVIF format for superior compression and quality. Optional resize, quality control, and batch ZIP download — all processed locally in your browser for maximum privacy. Learn how to open AVIF files on any device.
Drop or click to upload
JPG, PNG, WebP, GIF, BMP · up to 20 MB
Original
AVIF Preview
Drop multiple images
Select many files at once for batch AVIF conversion
How to Use This AVIF Converter
Upload Your Image(s)
Click the upload area or drag & drop images. Supports JPG, PNG, WebP, GIF, and BMP formats for conversion to AVIF.
Choose Settings
Adjust quality (10–100%) and optionally resize using percentage, custom dimensions, or popular presets like 1080p or Instagram square.
Convert & Download
Click Convert to AVIF & Download. Single images save as avif-converted-image.avif; batch jobs produce a convenient ZIP archive.
What is an AVIF File?
AVIF (AV1 Image File Format) is a next-generation image format that serves as a modern, high-performance alternative to legacy formats like JPEG, PNG, BMP, GIF, and WebP. Developed by the Alliance for Open Media, AVIF is fully open-source and royalty-free.
Key Features of AVIF
Superior Compression
AVIF achieves up to 50% smaller file sizes than JPEG and 20% smaller than WebP, all while delivering equal or superior visual fidelity. Perfect for image optimization workflows.
Universal Conversion
Easily convert your existing assets — including transparent PNGs, animated GIFs, JPEGs, and WebP files — into the optimized AVIF format.
Open Source & Royalty-Free
AVIF is developed by the Alliance for Open Media, making it an ideal choice for developers and platforms seeking vendor-neutral solutions.
How to Open AVIF Files
Modern browsers fully support AVIF (Chrome 85+, Firefox 93+, Safari 16.1+, Edge 121+). On desktop, Windows Photos and macOS Preview open AVIF files natively without plugins.
Ready to optimize your images?
AVIF vs. WebP vs. JPEG: Quick Comparison
See why AVIF is the best choice for modern web performance in 2026. This comparison highlights key differences to help you choose the right format.
| Feature | JPEG | WebP | AVIF |
|---|---|---|---|
| File Size | Baseline (100%) | ~30% smaller | ~50% smaller 🏆 |
| Visual Quality | Standard | Excellent | Superior 🏆 |
| Transparency | ❌ No | ✅ Yes | ✅ Yes (with alpha) |
| HDR Support | ❌ No | ❌ No | ✅ Yes 🏆 |
| Animation | ❌ No | ✅ Yes | ✅ Yes |
| Browser Support | 100% | ~97% | ~93% (growing fast) |
🏆 = Best in category. Data based on standard compression benchmarks at equivalent visual quality.
How to Serve AVIF on Your Website
Use the <picture> element to serve AVIF images while maintaining compatibility for older browsers. This is the standard approach recommended by web.dev and MDN for progressive image delivery.
<picture>
<source srcset="image.avif" type="image/avif">
<source srcset="image.webp" type="image/webp">
<img src="image.jpg" alt="Optimized image" loading="lazy" width="800" height="600">
</picture>
Pro tip: Always include descriptive alt text and specify width/height attributes to prevent layout shifts. For advanced performance, pair AVIF with our professional image resizer or use the CSS minifier to optimize your entire frontend stack.
Frequently Asked Questions
Is AVIF better than JPEG?
Yes — AVIF offers up to 50% smaller file sizes than JPEG at the same visual quality. It also supports transparency, HDR, and wider color gamuts, making it the superior modern format for web images and photography.
Does AVIF support transparency?
Yes. AVIF fully supports alpha channel transparency like PNG, but with dramatically smaller file sizes. This makes it ideal for logos, icons, and overlay graphics on any website.
Is this tool completely free?
Yes — 100% free with no signup, no watermarks, and no hidden limits. Convert unlimited images to AVIF format without any restrictions.
Are my images safe?
Yes. All processing is client-side only. Your images never leave your browser — complete privacy guaranteed. No data is ever uploaded to any server.
How do I open an AVIF file?
AVIF files open natively in Chrome 85+, Firefox 93+, Edge, and Opera. On desktop, Windows Photos and macOS Preview support AVIF without plugins. To convert back to JPEG, use our AVIF to JPG converter.
Which browsers support AVIF encoding?
AVIF encoding works in Chrome 85+, Firefox 93+, Edge 121+, and Safari 16.1+. Older systems may need a fallback format. Serve AVIF with a JPEG or WebP fallback using the <picture> element — see the code above.
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