bit.ly is described as 'Shorten URLs from anywhere with bit.ly. Bit.ly allows users to shorten, share, and track links (URLs). Reducing the URL length makes sharing easier. Bit.ly is available as a website, as a bookmarklet, and as a robust and open API' 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, Android and iPhone 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, Fli.so and YOURLS.