YOURLS is a small set of PHP scripts that will allow you to run your own URL shortening service (a la TinyURL). You can make it private or public, you can pick custom keyword URLs, it comes with its own API. You will love it.

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Own URL Shortener

Own URL Shortener

Bookmarklets

Plugins

There’s a WordPress plugin available for YOURLS, making integration with your blog a snap: create short URLs and tweet them automagically as you publish blog posts.

YOURLS was developed under the open source GPL license.

Major Features of YOURLS

• Public (everybody can create short links) or private (your links only)
• Sequential or custom URL keyword
• Handy bookmarklet to easily shorten and share links
• Awesome stats: historical click reports, referrers tracking, visitors geo-location
• Neat AJAXed interface
• Cool developer API
• Friendly installer
  

YOURLS Install