Convert images into AVIF for high compression efficiency.
AVIF Converter transforms your images into the next-generation AVIF format, delivering exceptional compression efficiency with impressive visual quality. It is free, entirely browser-based, and requires no login or server upload.
AVIF Converter is a client-side tool that re-encodes JPG, PNG, WEBP, or GIF images into the AV1 Image File Format. AVIF achieves some of the highest compression ratios available today, often producing files 30-50 percent smaller than equivalent WEBP or JPEG output while maintaining excellent perceptual quality. The format supports HDR, wide color gamut, and transparency. Because conversion happens locally in your browser, your images are never sent to a remote server, keeping your files completely private.
Upload a source image through the file input. Adjust the quality slider to control the balance between file size and detail -- a setting of 75 to 85 is a strong starting point for most photographs. Click Convert to process the image using your browser's native AVIF encoding support. Preview the output on the canvas to verify quality, then click Download AVIF to save the file to your device. Note that AVIF encoding is browser-dependent, so the tool works best in up-to-date versions of Chrome, Firefox, or Edge.