JPG to AVIF Converter
without uploading it.
Convert a photo to AVIF — smaller files than JPG or WebP at the same visual quality.
Drop an image, or click to browse
Drop a JPG (PNG and WebP work too) or click to browse.
Click "Convert to AVIF" — encoding happens on your device.
Click "Download AVIF" to save the converted file.
Why there's no upload step
AVIF encoding correctly in every browser needs a real encoder, not just a quick Canvas call — Chrome supports it natively but Firefox and Safari don't, so this uses a WebAssembly AVIF encoder that runs entirely on your device. Nothing is ever uploaded.
Is my image uploaded anywhere?+
No. Encoding happens entirely in your browser via a local WebAssembly module — nothing is sent to a server.
Why does AVIF take a little longer than other conversions?+
AVIF uses a much more complex compression algorithm than JPG or PNG, so encoding takes real computation — still just a few seconds for typical photos.
Will every site or app accept AVIF?+
Support has grown a lot, but some older apps and devices still don't display AVIF — check before relying on it everywhere important.
Can I convert PNG or WebP too?+
Yes — this tool accepts any common image format as input, not just JPG.