YOURLS - YOURLS is a website that contains all the tools you need to create and launch your very own URL shortener. URL shorteners like bitly or TinyURL are fine for public use, but they offer limited options in terms of URL customization.
Lessn More - Lessn More is a fork of Lessn with support for more types of short URLs than Lessn supported;...
Polr - An open source URL shortener. A great non-profit and free alternative to bit.ly, TinyURL, or goo.gl.
URL Multishortener - The first APP & BROWSER EXTENSION that allows you to shorten links on the fly with the best link shorteners that paid.
Blanq.io - URL shortener with custom domains, analytics, traffic routing and link management.
Zero Width Shortener - Shorten URLs with zero-width characters