Convert JPG to AVIF
Drop JPG files and download them as AVIF. The conversion runs on your device.
How it works
- The output is set to AVIF.
- Set the quality; 90 for text and graphics, around 80 for photos. The AVIF encoder loads on first use.
- Drop your JPG files; other formats work too.
- Download one, or all as a ZIP.
Why convert JPG to AVIF
AVIF is the most efficient photo format browsers can show today: at the same visible quality it is usually 20 to 30 percent smaller than WebP and about half the size of JPG. Converting hero images, product shots and blog photos to AVIF is one of the quickest ways to cut page weight and improve Largest Contentful Paint.
What changes in the file
No browser can write AVIF from a canvas, so the page fetches a 3.5 MB AVIF encoder (libavif compiled to WebAssembly) from this site the first time you choose AVIF; the photo itself never leaves your device. Encoding is slower than JPG, a few seconds for a large photo. The JPG's earlier compression is not undone, so start from the best copy you have, and camera EXIF data is not carried over.
Other conversions
PNG to JPG, JPG to PNG, PNG to WebP, JPG to WebP, PNG to AVIF, WebP to JPG, WebP to PNG