JPG to AVIF Converter
Convert JPG images to AVIF right in your browser. JPG is a small, widely-supported photo format that uses lossy compression, while AVIF is a next-gen format with the best compression, supported by modern browsers. Because everything runs on your own device, your files are never uploaded to a server — making this the private way to convert JPG to AVIF.
Drop images here or click to browse
Files are converted on your device. Nothing is uploaded — no size limit.
How to convert JPG to AVIF
- Drop your JPG file(s) into the box above, or click to browse.
- Choose AVIF as the output format and pick a quality level.
- Click “Convert to AVIF” — conversion happens instantly on your device.
- Download your new AVIF file. No watermark, no sign-up.
Frequently asked questions
Is this JPG to AVIF converter free?
Yes. It is completely free with no sign-up, no watermark and no limits imposed by us. The only limit is your device's memory, since conversion runs locally.
Are my files uploaded anywhere?
No. Your JPG files are read and converted entirely inside your browser using JavaScript. They never leave your device or get sent to any server.
Can I convert multiple JPG files at once?
Yes. You can add several files and convert them in one batch. Each downloaded file keeps its original name with the new .avif extension.
Will I lose quality converting JPG to AVIF?
AVIF uses lossy compression, so you can balance size and quality with the quality slider. At 90% the difference is usually invisible.