Hello and welcome to Shortr, a URL shortening service (yes, one of those).
Well, every URL shortener on earth seems to have a speciality of its own. And this one has got it too.
As the main objective of Shortr is to be simple, it uses the simplest form of database (to be considered as a database).
It's called SQLite! You must have heard about it. If you haven't, Google is your friend.
PS: Shortr has an API now. Head over to API Documentation. The current version of the API is 1.2.0
Well, here is a part of Shortr's simplicity. No instructions! No FAQ! Just enter the URL you want to shorten and hit [ENTER]