Does JPG keep AVIF transparency?
No. JPG export flattens transparency onto a white background because the JPG format cannot carry an alpha channel. Use AVIF to PNG if you need transparency preserved.
Does this upload the AVIF to a server?
No. Decoding, preview, and JPG export all stay in your browser, so the AVIF is never uploaded and remains private on your device.
Is AVIF to JPG free?
Yes. The converter is free to use with no signup, and the conversion happens locally in your browser.
Can I control the JPG quality?
Yes. You choose a JPG quality preset before export to balance file size against image fidelity for your needs.
Why is the JPG bigger than the AVIF?
Because AVIF is the far more efficient format. Our own benchmark measured it at 37% smaller than JPEG at matched quality, so converting the other way costs you that saving back. Convert for compatibility, not for size.
What happens to the transparent background?
It is flattened onto white, because JPG has no alpha channel. If the AVIF has transparency you want to keep, convert to PNG instead.
Which quality preset should I use?
Balanced, which is 82. The higher setting of 90 costs a real size premium for a difference almost nobody can see on a photograph, and 68 is where a smaller file becomes visible on close inspection.
Why would I convert away from AVIF at all?
Because something refuses it: an email client, an older desktop application, a marketplace with a strict allowlist. Browsers all take AVIF; the world outside them is patchier.
Does the conversion lose quality?
A little. It is lossy-to-lossy, so re-encoding always costs something. Keep the AVIF as the master and convert from it when you need to, rather than converting the JPG again.