If you're looking for a URL shortener which looks IMO to be in several ways slightly better than TinyURL etc., (link analytics, QR codes, API integration etc) I recommend checking out TLY, and if you do end up signing up for an account, please use my referral link so I can get a commission:
https://t.ly/register?via=christopher-flannery
See Sandeep Verma's article for more info:
https://medium.com/@sandeep4.verma/system-design-scalable-url-shortener-service-like-tinyurl-106f30f23a82
I hope you enjoy, and please share with a friend!
Comments and suggestions are appreciated.