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 well-known app in the Web Browsers category. There are more than 100 alternatives to bit.ly for a variety of platforms, including Online / Web-based, SaaS, Windows, Linux and Mac. The best alternative is Kutt, which is both free and Open Source. Other great apps like bit.ly are Polr (Free, Open Source), YOURLS (Free, Open Source), T2M - URL Shortener (Paid) and TinyURL (Free).
Z.ips.ME is a free open-source program that allows you to use your website as your very own link shortening service. You control the link text, how long the link works, and only you have access to your data.
Giv.to is a URL shortener for causes, non-profits, and political Campaigns. In addition to shortening URLs, Giv.to offers the most detailed analytics of any URL shortener. View where users come from, their browser and what search terms they use to find your content.