Why convert JPG to AVIF?

AVIF uses modern compression that typically produces files 30-50% smaller than JPEG at the same visual quality, which speeds up web pages and saves storage. It is supported by current versions of Chrome, Edge, Firefox and Safari.

Are my images uploaded to a server?

No. Conversion happens entirely in your browser using the HTML canvas — your photos are never uploaded, stored or seen by anyone.

How accurate is the conversion?

The image is decoded and re-drawn at its original pixel dimensions, then re-encoded as AVIF at the quality you choose. AVIF is a lossy format, so very high quality settings keep detail close to the original while still shrinking the file.

JPG to AVIF Converter

Convert JPG photos to AVIF without uploading them

AVIF is a modern image format based on the AV1 codec. For the same visual quality it is usually far smaller than JPEG, so pages load faster and you store less. This tool re-encodes your JPG photos as AVIF using a quality slider you control.

Everything runs locally in your browser — your photos are never uploaded, stored, or seen by anyone. That makes it both faster (no upload wait) and private by design. AVIF encoding needs a recent browser (Chrome, Edge, Firefox or Safari); if yours can’t encode AVIF, the tool will tell you.