How to convert JPG to AVIF
Drag and drop your JPG files into the upload zone, or click to browse and select them from your device.
Click Convert to AVIF. The conversion runs in your browser when supported, with secure server fallback if needed.
Download each converted AVIF file individually, or use Download all after multiple files finish.
JPG and AVIF - what's the difference?
AVIF: Choose AVIF when the destination supports it and you want the smallest possible file size at good quality for web delivery. WebP: Choose WebP instead when you need broader compatibility — WebP has been supported in browsers longer than AVIF.
Why People Convert JPG to AVIF
Convert JPG files to AVIF online for free. AVIF is one of the most efficient image formats available, producing files that are typically 50% smaller than JPG at comparable visual quality.
JPG has been the standard photo format for decades, but it was designed before modern compression research produced far more efficient alternatives. AVIF, based on the AV1 video codec, delivers noticeably smaller files at the same visual quality level — which directly translates to faster page loads and lower bandwidth costs for web images.
AVIF is now supported in all major modern browsers. Converting existing JPG images to AVIF is a straightforward way to improve web performance without changing how images look on screen.
Common situations where this helps
A website has many large JPG images and you want to reduce their file sizes for faster loading without visible quality loss.
A product image gallery or blog needs to be optimised for Core Web Vitals and smaller delivery sizes.
You are building a modern image pipeline and want to adopt AVIF as the delivery format for new and existing JPG assets.
A JPG photo needs to be uploaded to a platform that accepts AVIF and rewards smaller file sizes.
Common problems and fixes
The platform or browser does not display the AVIF file.
AVIF is supported in Chrome, Firefox, Safari 16+, and Edge. Older browsers and some platforms do not support it. If compatibility is a concern, WebP has broader support and is still much smaller than JPG.
The AVIF output looks worse than the JPG at the same file size.
AVIF compression can introduce slight artefacts at aggressive settings. Try a higher quality setting to find the right balance between file size and visual quality for your use case.
Converting is slow for large JPG files.
AVIF encoding is computationally intensive. Larger files take longer to convert, especially at high quality settings. Resize large images before converting if speed is a priority.