bit.ly is described as 'Shortens URLs, generates customizable QR codes, tracks clicks, offers branded domains, bulk management, analytics, browser extension, and API access' and is a very popular URL Shortener in the web browsers category. There are more than 100 alternatives to bit.ly for a variety of platforms, including Web-based, SaaS, Self-Hosted, Google Chrome and Mac apps. The best bit.ly alternative is Kutt, which is both free and Open Source. Other great apps like bit.ly are Polr, Dub.co, YOURLS and Fli.so.