What AVIF is, and why you have one
AVIF is a newer image format based on the AV1 video codec. At the same visual quality it is often half the size of a JPG, so image-heavy sites, online shops and CDNs increasingly serve it to browsers that support it. Save an image from one of those sites and you get a .avif file, which plenty of software still can’t open: older versions of Windows Photos, Microsoft Office, many photo editors and most print and upload services.
Getting a good JPG
AVIF files are usually small because they are compressed hard. Converting to JPG at the default quality of 85 adds a second, lighter round of compression on top. The JPG will normally be two to three times the size of the AVIF; that is expected and doesn’t mean anything went wrong. For printing, raise quality to 92 or so.
Transparency and HDR
AVIF can hold transparent areas and high dynamic range colour; JPG can do neither. Transparent parts become white, and HDR images are converted as your browser displays them in standard range, so very bright highlights may look flatter. To keep transparency, choose PNG with the general image converter.
Questions
My browser won't load the AVIF here.
Decoding uses your browser’s built-in AVIF support, which needs Chrome or Edge 85+, Firefox 93+, or Safari 16.4+. Update the browser, or try another one.
Are my images uploaded?
No. Conversion happens on your device.