Convert JPG to AVIF | MiniPx — Free, Fast & Private
AVIF is the most efficient image format available today. Based on the AV1 video codec, AVIF produces files roughly 50% smaller than JPEG and 20% smaller than WebP at equivalent visual quality. Converting your JPG images to AVIF can dramatically reduce page load times.
Browser support for AVIF has expanded rapidly. Chrome, Firefox, Opera, and Samsung Internet all support AVIF. Safari added support in version 16.4. For maximum compatibility, serve AVIF with a JPG or WebP fallback using the HTML picture element.
MiniPx converts JPG to AVIF using your browser Canvas API. The conversion happens entirely on your device — no server upload needed. Quality settings let you balance file size against visual fidelity.
AVIF particularly excels at compressing photographs with smooth gradients and subtle color transitions. Where JPEG shows visible banding or blocking artifacts, AVIF maintains smooth transitions at much smaller file sizes.
Note that AVIF encoding can be slower than JPG or WebP encoding. Processing time depends on your device hardware. The file size savings are worth the extra encoding time for web delivery.