NimbleTools

JPG to AVIF Converter Online

Convert JPG photos to modern AVIF to save 30–50% of file size at the same quality. Works in both directions, right in your browser.

Direction
jpgavif

Your files never leave your device

Frequently asked questions

How much smaller is AVIF than JPG?

Typically 30–50% smaller at similar visual quality — great for website speed and Core Web Vitals.

Which browsers support AVIF?

All modern browsers decode AVIF (Chrome, Edge, Firefox, Safari 16+). Encoding to AVIF in the browser works in Chrome and Edge.

Are my images uploaded?

No, conversion runs locally in your browser.