Select the JPG files to convert (select any number of files)
The images are encoded right in your browser (adjust quality to control size)
Download the files one by one or all together as a zip file!
Converting JPG images to next-gen AVIF has never been this easy, free, and secure!
Fublix's JPG to AVIF converter is 100% free and has no limits! Use it as many times as you want without paying anything.
No files are uploaded or sent to any server. The entire conversion takes place locally in your browser. 100% safe and secure.
No limit on the number of files you can convert. Convert as many files as you need, whenever you need.
AVIF is the cutting edge of image compression. Based on the AV1 video codec, it routinely cuts file sizes in half compared to JPG at the same visual quality, and it beats WEBP too.
If you're optimizing a website, serving AVIF images means faster page loads, better Core Web Vitals scores, and lower bandwidth costs. Google recommends serving AVIF first, with WEBP and JPG as fallbacks.
Our converter encodes AVIF entirely in your browser using WebAssembly - no server, no upload, no waiting in a queue.
Fublix's JPG to AVIF converter never uploads your files. The complete encoding process runs locally in your browser.
Your images stay on your device from start to finish - private by design, with no limits on how many files you convert.
