AVIF vs WebP — Full Comparison for 2026
AVIF and WebP are both next-generation image formats designed to replace JPG and PNG on the web — but AVIF is newer and significantly more efficient. AVIF (AV1 Image File Format) was standardised in 2019 and can produce files 40–50% smaller than equivalent JPGs. WebP was released by Google in 2010 and produces files 25–35% smaller than JPG. Both support transparency and animation. The tradeoff is browser and software compatibility — WebP is more widely supported, while AVIF offers better compression but requires newer software.
Quick Answer
AVIF and WebP are both next-generation image formats designed to replace JPG and PNG on the web — but AVIF is newer and significantly more efficient. AVIF (AV1 Image File Format) was standardised in 2019 and can produce files 40–50% smaller than equivalent JPGs.
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Check your compatibility requirements
AVIF is supported by Chrome 85+, Firefox 93+, and Safari 16+. WebP is supported by virtually all modern browsers. If you need maximum compatibility, use WebP. If your audience uses modern browsers and you want maximum compression, use AVIF.
Convert to your chosen format
Use the Image Converter to convert JPG, PNG, or any image to AVIF or WebP. Both conversions are free and run in your browser.
Compare file sizes
Convert the same image to both AVIF and WebP and compare the output sizes. AVIF is typically 10–20% smaller than WebP at equivalent quality.
Use picture element for fallback
For maximum browser compatibility, use the HTML picture element to serve AVIF to supporting browsers with a WebP or JPG fallback for older ones.
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Pro tip
Pre-optimizing images before uploading to a platform gives you more control than relying on the platform's automatic (and often aggressive) compression.
WebP vs JPG vs PNG — Real File Sizes
Same 1080×1080px photo at equivalent visual quality
| Format | Quality | File Size | Notes |
|---|---|---|---|
| PNG (lossless) | Perfect | 4.2 MB | No compression loss |
| JPG (85% quality) | Excellent | 310 KB | Best compatibility |
| WebP (85% quality)BEST | Excellent | 205 KB | −34% vs JPG · Best for web |
Based on a 1080×1080px photo. Results vary by image content and complexity.
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