Amnesia.io

# Run this command:
$ curl -F "file=@filepath/filename.js" https://amnesia.io

# Or use the alias - add it to your .bashrc or .zshrc.
# Then it's just:
$ amn filepath/filename.js
https://amnesia.io/a0089464ca6c9a23dc70aba432b84947fd864e3815f28b12a242b161d9a0752e

For the latest bash alias please see this gist.

Isn't this just like Transfer.sh? Very similar. However, this is focused on purely code sharing.