Product photo (1200×900)
- Input
- JPEG 85%: 320 KB
- Expected output
- AVIF: ~170 KB (−47%)
Nearly half the weight at equivalent quality.
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convert JPG to AVIF
AVIF is currently the best widely-supported image compression format: for the same visual quality it produces files 20–50% smaller than JPEG and ~20% smaller than WebP. For photo-heavy sites, moving to AVIF improves LCP and Core Web Vitals scores. AVIF encoding depends on browser support and runs locally, without sending the original photo anywhere.
Nearly half the weight at equivalent quality.
Direct LCP reduction on pages with a hero image.
Across a 30-photo gallery, the savings add up to over 1.9 MB total.
Transparency is filled with white, because the JPEG format does not support an alpha channel. If you need to preserve transparency, convert to PNG or WebP. The tool automatically warns you when this situation occurs.
AVIF encoding via Canvas depends on the browser. Recent Chrome and Edge encode AVIF; some browsers only decode it. If the option does not appear, use an up-to-date Chromium-based browser.
In compression, usually yes, especially on photographs. WebP has broader support and faster encoding, often finishing in a fraction of the time AVIF takes on the same image. For maximum savings with a fallback, serve AVIF with WebP as a second option and JPEG as the last resort.
Yes, slightly: the artifacts already present in the JPEG remain, and AVIF recompression adds a second layer of loss on top of them. The size gain is real, but for maximum quality it is best to generate the AVIF from the original file, not from an already-compressed JPEG.
Preset conversion: JPG → AVIF. Add your files below.
Your browser cannot encode this format. Pick another one. Otherwise the file would be saved with the wrong extension.
AVIF (not supported)
Converting a 6000px image without resizing is the classic mistake: the format changes but the file stays huge.
All conversions happen in your browser. No file is sent to any server.