There is also https://squoosh.app/.

Absolutely, I'm a huge fan of Squoosh! It's a phenomenal tool and a big inspiration for this project.

The main difference is that OnlyJPG is laser-focused on one thing: creating the best possible, universally compatible JPG using Google's Jpegli encoder.

Surprisingly, Squoosh doesn't use Jpegli yet.

And it's a brilliant example of a PWA.

IIRC, you can also use it via npx, i.e, in the terminal!