What is AVIF?
AVIF (AV1 Image File Format) is one of the newest image formats on the web. It is based on the AV1 video codec and can make images up to 50% smaller than JPG at the same quality. Many large websites now serve AVIF images automatically, so when you save a picture from the web, you may get an .avif file.
The downside is compatibility. Older versions of Windows Photos, Microsoft Office, many image editors, printers and upload forms do not recognise AVIF yet. Converting to JPG makes the image work everywhere.
How the conversion works
All modern browsers — Chrome, Edge, Firefox and Safari 16+ — can decode AVIF natively. This tool uses your browser’s built-in decoder to read the image, then encodes it as JPG on your device. No files are sent anywhere, and conversion is almost instant.
JPG or PNG?
- JPG — best for photos and the smallest files. Transparent areas are filled with the colour you choose.
- PNG — choose it if the AVIF has a transparent background or contains sharp text and graphics.
Learn more about modern formats in JPG vs PNG vs WebP vs AVIF. Other converters: HEIC to JPG, WebP to PNG.