AVIF vs WebP — Which Next-Gen Image Format Is Better?
AVIF and WebP are both modern image formats designed to replace JPEG and PNG. AVIF offers better compression while WebP has wider support. Here's the complete comparison.
Quick Answer
AVIF gives 20-50% smaller files than WebP but encodes slower and has slightly less browser support. WebP is faster to encode, universally supported, and still 30% smaller than JPEG. Best practice: serve AVIF with WebP fallback.
AVIF vs WebP Comparison Table
| Feature | AVIF | WebP |
|---|---|---|
| Compression (photos) | 20-50% smaller than WebP | 30% smaller than JPEG |
| Encoding Speed | Slow (10-20x slower) | Fast |
| Decoding Speed | Moderate | Fast |
| Transparency | Yes | Yes |
| Animation | Yes (AVIF sequence) | Yes |
| HDR Support | Yes (10/12-bit) | No (8-bit only) |
| Max Resolution | 8193 × 4320 (tiled for larger) | 16383 × 16383 |
| Browser Support | ~93% (2024) | ~97% (universal) |
| Based On | AV1 video codec | VP8/VP9 video codec |
| Developed By | Alliance for Open Media |
Key Differences
Compression Efficiency
AVIF consistently produces 20-50% smaller files than WebP at equivalent visual quality, especially for photographs. At low bitrates (highly compressed images), AVIF maintains significantly better quality than WebP — fewer artifacts, better color preservation, and sharper details. This makes AVIF ideal for sites with thousands of product images or photo-heavy content.
Encoding Speed Trade-off
AVIF's major downside: encoding is 10-20x slower than WebP. A batch of 100 photos that WebP encodes in 10 seconds might take AVIF 3-5 minutes. This makes AVIF impractical for real-time processing but fine for pre-built assets. Tools like theimgapp process AVIF efficiently for individual use, but CDNs should pre-encode AVIF versions.
HDR and Wide Color Gamut
AVIF supports 10-bit and 12-bit color depth plus HDR metadata. WebP is limited to 8-bit color. For HDR displays, AVIF is the only next-gen web format that can deliver the full color range. This matters for photography sites, art galleries, and product showcases on modern displays.
Practical Recommendation
Use both formats with progressive enhancement. Serve AVIF to supported browsers (smallest files), fall back to WebP (broad support), then JPEG/PNG for legacy browsers. The HTML <picture> element makes this simple. For theimgapp users: convert to both AVIF and WebP using our format converter and choose based on your audience's browser support.
Frequently Asked Questions
Is AVIF better than WebP?
For compression, yes — AVIF is 20-50% smaller. But WebP encodes faster, has wider support, and is better for dynamic/real-time processing. For pre-built static assets, AVIF wins.
Should I use AVIF or WebP for my website?
Ideally, use both — serve AVIF when supported for smallest files, with WebP fallback. If you can only choose one, WebP is the safer bet with near-universal support and excellent compression.
Convert to AVIF or WebP Free
Convert images to AVIF or WebP instantly in your browser. No upload, no signup, free.
Convert Images Free