Rewrite of previous text uploader, PyBin. This one is written in JS, using the Ace editor, and is much better and more intuitive than the previous one.
I wrote this because Hastebin seems to be not working, and also it seems fun.
Website: JSBin.
If you want to host it yourself, all you need is a MongoDB Atlas cluster, and you can simply replace the value in your env or manually hard code it in the main js file.