Try it here: https://asselinpaul.github.io/paste/
This is a no-datastore, client-side paste service. It turns text into LZMA-compressed, Base64-encoded URLs.
For example, here's the service hosting (a version of) its own HTML.
Because the entire paste is inside the URL, there's no risk of losing your data because a 3rd-party service vanished or deleted old pastes. If you have the URL, you have the pasted data.
Uses LZMA-JS (© 2016 Nathan Rugg nmrugg@gmail.com).