WebP vs AVIF — Which Image Format Should You Use in 2026?
Side-by-side comparison of WebP and AVIF for web images. File size, quality, browser support, and practical recommendations.
WebP
Best balance of support and compression.
AVIF
Best compression, but still catching up on tooling.
Overview
WebP and AVIF are both modern image formats built to replace JPG and PNG. WebP (2010, Google) is the pragmatic workhorse — supported everywhere, fast to encode, good compression. AVIF (2019, Alliance for Open Media) is the newer, smaller, more capable format — but tooling and encoders are still maturing.
Side-by-side
| Feature | WebP | AVIF |
|---|---|---|
| Release year | 2010 | 2019 |
| Browser support | 97%+ (all modern browsers) | 92%+ (Safari 16+, all others) |
| Compression vs JPG | 25-35% smaller | 40-50% smaller |
| Compression vs WebP | baseline | 15-30% smaller |
| Encoding speed | Fast | Slow (2-10x slower) |
| Decoding speed | Fast | Moderate |
| Transparency | Yes (lossy + lossless) | Yes (lossy + lossless) |
| HDR / wide gamut | Limited | Full support |
| Animation | Yes | Yes |
| Editor / CDN support | Excellent | Good, improving |
Bottom line
Use WebP as your default today — it works everywhere and is a massive improvement over JPG/PNG. Adopt AVIF with a <picture> fallback for maximum compression on modern browsers. The pragmatic 2026 stack serves AVIF → WebP → JPG in that order.
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Image to WebP
Convert JPG, PNG, and GIF images to WebP format for faster websites.