Shorty is a simple tool for creating shorter, human- readable links from long URLs. You install Shorty on your server, so the links you create with it never go away. You can also manage your links and see how often people click on them.

URL shortening script with numerous useful features.

Create multiple shortened URLs configurable with .htaccess files. Easy install and update of URLs.

ZFurl is a URL shortening service built with the Zend Framework.

URL shortening service like TinyURL with CAPTCHA, mod_rewrite, duplicate URL record handling, and more.

lilURL is a simple PHP/MySQL script for generating lil' URLs. It's similar to TinyURL, Shorl, MakeAShorterLink, etc, but you can run it on your own server. Requires PHP and MySQL. Supports mod_rewrite.

Kissa.be is a free URL shortening script built with PHP and uses MySQL for storing data. Besides URLs, it can shorten links to images, e-mails and text.