PixCompress AVIF Files
AVIF is the newest and most efficient image format available, offering 20-50% smaller files than WebP at equivalent quality. But AVIF files exported from editors or converted from high-resolution originals can still benefit from quality tuning. Pixotter compresses AVIF files in your browser — no upload, no server processing, instant results.
1,000+ images processed · Your images never leave your browser
When to Compress AVIF
- Web performance — AVIF is already efficient, but quality tuning can save an extra 20-40% on file size
- Image-heavy sites — Galleries, portfolios, and e-commerce sites benefit most from AVIF compression
- Progressive enhancement — Serve optimized AVIF to supported browsers with JPEG/WebP fallbacks
- Storage optimization — Compress AVIF archives and backups to save disk space
AVIF Browser Support
AVIF is supported in Chrome, Firefox, Safari 16+, and Edge. For older browsers or platforms that don't support AVIF, consider converting to WebP (next best compression) or converting to JPEG (universal compatibility). Most modern websites serve AVIF as the primary format with WebP and JPEG fallbacks.
Why Compress AVIF Images
AVIF (AV1 Image File Format) already delivers the best compression ratios of any modern image format — up to 50% smaller than JPEG at equivalent visual quality. But there are still good reasons to compress AVIF files further.
AVIF images exported from editing software or generated by AI tools often use conservative quality settings that prioritize visual perfection over file size. A 4000x3000 AVIF photo at quality 90 might be 2MB — technically smaller than the equivalent JPEG, but still larger than necessary for web delivery. Compressing it to quality 60-70 can bring it under 500KB with no perceptible quality difference on a typical screen.
For website performance, every kilobyte matters. Google's Core Web Vitals directly measure how fast your Largest Contentful Paint (LCP) loads, and images are often the LCP element. An AVIF image that loads in 200ms instead of 800ms measurably improves your page speed score and user experience. Compressing AVIF files before uploading them to your CMS or CDN is one of the easiest performance wins available.
AVIF compression is based on the AV1 video codec, which uses advanced techniques like intra prediction, transform coding, and in-loop filtering. This means AVIF handles gradients, skin tones, and complex textures better than JPEG at the same file size. When you compress an AVIF file, you are leveraging these superior algorithms — so even aggressive compression produces cleaner results than equivalent JPEG compression.
Frequently Asked Questions
Which browsers support AVIF?
All major modern browsers support AVIF: Chrome (since version 85), Firefox (since 93), Safari (since 16.4 on macOS and iOS 16.4), Edge, and Opera. Combined, this covers roughly 93-95% of global web traffic. For the remaining users, serve a JPEG or WebP fallback using the HTML `
How does AVIF quality compare to JPEG?
At the same file size, AVIF looks significantly better than JPEG. A 100KB AVIF image typically matches the visual quality of a 200KB JPEG. AVIF handles gradients, skin tones, and fine textures especially well — areas where JPEG often shows visible blocking and banding artifacts. For photographs, AVIF quality 50-65 is roughly equivalent to JPEG quality 80-85.
Does AVIF support transparency and animation?
Yes to both. AVIF supports alpha channel transparency (like PNG) and animated sequences (like GIF or animated WebP). This makes it the only modern format that combines best-in-class compression with full transparency and animation support. Animated AVIF files are significantly smaller than equivalent animated GIFs or WebPs.
Why are my AVIF files still large after export?
Image editors often export AVIF at very high quality (80-100) by default, prioritizing visual perfection. For web use, quality 50-70 is usually sufficient and dramatically smaller. Also check the image dimensions — a 6000x4000 photo in AVIF is still a large file. Resize to your actual display dimensions before compressing for the biggest savings.
Should I use AVIF or WebP for my website?
If your audience uses modern browsers (93%+ support), AVIF delivers smaller files and better quality. If you need broader compatibility, WebP has 97%+ browser support. The ideal approach is to serve AVIF with a WebP fallback using the `
How It Works
Drag and drop one or more AVIF images. Batch processing handles up to 20 files at once.
Use the quality slider to find the perfect balance. AVIF retains excellent quality even at low settings.
Download individual files or grab them all as a ZIP. The before/after slider shows the quality difference.