Convert AVIF images to JPG for free in your browser. AVIF is the most efficient image format currently available, but support outside browsers is still limited — JPG opens in anything.
AVIF is built on the AV1 video codec and is currently the best-compressing image format in general use — frequently half the size of a JPEG at matched quality, with notably better handling of gradients and flat colour where JPEG produces visible banding. It also supports HDR, wide colour gamut and transparency.
Browser support is now broad. Support in desktop applications, print workflows and upload validators is not, which is why you are here.
This conversion goes from a more capable format to a less capable one, so some things cannot come along:
AVIF is recent enough that many image viewers, editors and print systems have not added support. Browsers handle it well; almost everything else is inconsistent.
Typically around double, since AVIF compresses roughly twice as efficiently at matched quality.
Yes. JPG is limited to 8-bit standard dynamic range, so HDR highlights and wide-gamut colours are compressed into the smaller sRGB space.
Yes, where your browser can encode it. Some browsers can display AVIF but not create it — in that case the converter falls back to WEBP rather than failing silently.