AVIF is the codec JPEG should have been if it had been invented in 2019. Same photographic content, half the bytes, HDR and wide-gamut built in — all in the browser tab you already have open.
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Three codec generations of compression research
Drop camera JPEGs, stock photos, or web-sourced images. The converter handles baseline, progressive, and CMYK JPEGs.
Decoded pixels run through the AV1 encoder with intra-frame-only config (AV1 is a video codec; AVIF uses a single still frame). Quality defaults to 50 — visually matching WebP 80.
Files are typically 30–50% smaller than the source JPEG at equivalent quality. Extension changes to .avif; filenames preserved.
Convert images between these related converters
insight-to-avif-reason
WebP descends from VP8 (2010). AVIF descends from AV1 (2018). Eight years of codec research separate them — and the file sizes show it.
encoder runs via WebAssembly in your browser tab
convert portfolios, catalogs, and photo libraries in place
Browser support, encoding time, HDR, and when AVIF is worth it.
Typically 40–55% smaller for photographic content at equivalent SSIM. A 500 KB JPEG becomes a 220–300 KB AVIF with no visible quality change. On simpler content (flat color, graphics) gains are smaller; on complex photos with fine detail, gains are largest.
Chrome 85+ (Aug 2020), Firefox 93+ (Oct 2021), Safari 16.4+ (Mar 2023), Edge 121+ (Jan 2024). Coverage around 92% of global traffic. For the 8% gap, serve WebP or JPEG as fallback via picture.
AV1's compression complexity is an order of magnitude higher than VP8. A JPEG encodes in milliseconds; AVIF takes 1–3 seconds per image in-browser at default settings. The trade-off is one-time pain for ongoing delivery gain.
Yes — AVIF natively supports 10- and 12-bit color depth, Rec.2020 color space, and HDR10/HLG transfer functions. For most JPEG inputs this is irrelevant (JPEG is 8-bit sRGB), but if you feed 10-bit TIFFs through an AVIF pipeline, HDR preserves end-to-end.
Yes. Google indexes AVIF, as do Bing and most modern crawlers. Image SEO metadata (alt text, structured data, filename) works identically regardless of format. The format itself is codec-only — SEO signals live around it.
AVIF supports alpha channel identically to WebP and PNG. For JPEG inputs (which have no transparency) the output AVIF is fully opaque. For transparent sources, use our PNG to AVIF pipeline instead.
Compression-wise, usually yes — 15–25% smaller than WebP on photographic content. Browser-support-wise, WebP wins (97% vs 92%). Encoding-speed-wise, WebP wins massively. Choose AVIF when compression matters most, WebP when speed or compatibility does.
Serve all three via picture AVIF first, WebP second, JPEG fallback. Browsers pick the smallest format they can decode. This is the 2025-standard approach for performance-conscious sites and is supported natively in every major CMS and image CDN.