You might like https://www.photopea.com (not open source), and https://chowderman.github.io/xp-paint.html which is open source at https://github.com/h53d/xp-paint
Photopea is really amazing, we even use it professionaly
This is tool is amazing! I know it's built using WASM and creator earns a lot on this tool from ads. https://news.ycombinator.com/item?id=26769141
Photopea isn't made using WASM, it's just vanilla HTML/JS/CSS
Edit: well besides (as of 3 years ago) 2 modules apparently: https://www.reddit.com/r/IAmA/comments/s2elpv/comment/hsfwn9...
https://github.com/chowderman/chowderman.github.io looks to be the original repo for https://github.com/h53d/xp-paint then.
And the other is a clone of that repo which was reuploaded manually instead of using the “fork” UI buttons of GitHub. Which is fine and all. But better to link the original as the repo anyway.
It is a bit disappointing, almost every feature I click it says that it is still in develoment.
I'm not actually sure that you can do anything besides draw right now