JPG to AVIF Converter

AVIF is based on the AV1 video codec. It uses far more modern compression than JPG, which dates from 1992, so it can describe the same photo with fewer bytes. In typical web use, AVIF photos come out around 40 to 60 percent smaller than comparable JPGs and often smaller than WebP too.

AVIF also handles the things JPG struggles with. Smooth gradients stay free of blocky banding, and text or sharp edges in a photo show less ringing. It supports transparency, HDR and wide colour as well, although a JPG source has no transparency to carry over.

This converter encodes at a high quality setting (85 on the AVIF scale), aimed at photos that look like the original. How much you save depends on the source. Large, lightly compressed camera JPGs shrink the most. A JPG that was already squeezed hard, such as a social media download, will not shrink as dramatically, because re-encoding cannot recover detail that is already gone. Resizing with Resize Image first often saves more than the format change itself.

All current major browsers display AVIF: Chrome and Firefox for several years, Safari from version 16, and Edge since early 2024. On a website, AVIF is safe for nearly all visitors. Very old browsers still in use can be covered with a JPG fallback in a picture element.

Outside browsers, support is patchier. Some image viewers, office programs, email clients and upload forms still do not open AVIF. Keep your original JPGs as masters and use AVIF for publishing.

How this page handles AVIF: browsers can display AVIF but most cannot create it, so this conversion is done on our server. Your photo is sent to RegiAI, encoded, and the AVIF is returned to your browser for download. Each file can be up to 20 MB. If you prefer processing that never leaves your device, JPG to WebP runs fully in the browser in Chrome, Edge and Firefox.

• Convert large images, not tiny ones. The savings from AVIF are biggest on hero images, banners and gallery photos. For small icons or thumbnails of a few kilobytes, the difference from WebP or JPG is negligible.
• Resize first. AVIF encoding time grows with image size. Shrinking a 6000 pixel original to the size you actually display, with Resize Image, makes conversion faster and the file smaller.
• Always start from the best original. Converting JPG to AVIF, then to JPG, then to AVIF again stacks compression losses. Keep your source JPGs and convert from them each time.
• Look at gradients and skin. Open one converted photo at full size and check skies, shadows and faces. At the quality used here they should look clean.
• Measure the result. Run your page through a speed test before and after swapping images, so you can see the effect on load time.
• Keep a fallback plan. If a platform refuses AVIF uploads, JPG to WebP gives most of the benefit with wider support.

Converting iPhone photos? HEIC files can be turned into JPG or AVIF with the HEIC Converter.