[achairapart]

Maybe you can double its usefulness by adding an option to save as WebP, so that's both a ratio and a format converter.

I think should be trivial, on current supported browsers at least.

[einaregilsson]

Does the Canvas api have support for webp?

[achairapart]

By quickly looking at MDN[0], at least in Chrome, yes. Honestly, I can't say for other browsers at the moment.

[0]: https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasE...