 | Aardvark Topsites | Aardvark Topsites is an open source topsites system, and is the most-used free "topsites" script on the Internet. |
 | Advanced Guestbook | Advanced Guestbook is an open source guestbook system. |
 | Advanced Poll | Advanced Poll is a free survey/poll system. |
 | b2evolution | b2evolution is an open source blog system. b2evolution forked from the b2/cafelog project in 2003. |
 | Code Igniter | CodeIgniter is a powerful, free framework system for the development of web applications. |
 | Contact Form | Contact Form is a simple open source website contact form. |
 | Coppermine | Coppermine Photo Gallery is a popular open source image gallery system. |
 | Coranto | Coranto is an open source framework/cms that uses a flat file (text file) database. |
 | Crafty Syntax Live Help | Crafty Syntax Live Help is an open source chat-based help system. |
 | CubeCart | CubeCart is a free e-commerce shopping cart system. A commercial version is also available from the website. CubeCart was previously known as eStore. |
 | Drupal | Drupal is an open source cms. |
 | Feed On Feeds | Feed On Feeds is an open source RSS/Atom aggregator. |
 | Flat Calendar | Flat Calendar is a simple calendar system. |
 | Gallery 1 | Gallery1 is an open source image gallery system. Gallery1 was succeeded by Gallery2, though is still updated. Gallery1 installs can be upgraded to Gallery2 via a Gallery2 plugin. |
 | Gallery 2 | Gallery 2 is a powerful and popular open source image gallery system with a large install size. Gallery2 is the successor to Gallery. |
 | GBook | GBook is a free guestbook system, with advanced spam-fighting tools. GBook is also known as PHP Guestbook. |
 | Help Center Live | Help Center Live is an open source chat-based help system. |
 | iTron Clock | iTron Clock is a free real-time javascript clock. |
 | Joomla | Joomla! is a powerful open source portal system, and is one of the most-used scripts on the Internet. Joomla! forked from the Mambo project in 2005. |
 | LimeSurvey | LimeSurvey is a powerful open source survey system, with statistical analysis. LimeSurvey was formlerly known as PHPSurveyor. |
 | Magento | Magento is is a very popular open source e-commerce shopping cart system. |
 | Mambo | Mambo is a powerful open source portal system. |
 | MediaWiki | Mediawiki is a powerful open source wiki system, and can be used from the web GUI although the advanced administrative tools require SSH access. Mediawiki was originally created to power the Wikipedia project. |
 | Moodle | Moodle is an open source course management system (education) script. |
 | Noah's Classifieds | Noah's Classifieds is a popular free classifieds system. A commercial version is available from the website. |
 | ocPortal | ocPortal is a free Content Management system for advanced dynamic/interactive websites. |
 | OpenX | OpenX is an open source advertising banner system, and is the most-used free banner system on the Internet. Openads was previously known as OpenAds and phpAdsNew, which forked from the phpAds project in 2000. |
 | osCommerce | osCommerce is a very popular open source e-commerce shopping cart system. |
 | osTicket | osTicket is an open source trouble tickets script. |
 | PHP-Nuke | PHP-Nuke is an open source portal system. {installatron} also applies the latest PHP Nuke Patched security modifications. |
 | phpBB | phpBB is an open source forum system. phpBB is the most-used free forum script on the Internet. |
 | phpCOIN | phpCOIN is a free client and invoice management system. |
 | phpESP | phpESP is an open source survey system, with statistical analysis. |
 | php File Manager | php File Manager is an open source web file manager. |
 | phpFormGenerator | phpFormGenerator is an open source HTML form generator. |
 | PHPLinks | phpLinks is an open source link management system, with search capabilities. phpLinks was last updated in 2003 and is no longer supported by the author. {installatron}'s install of phpLinks includes all known third-party fixes. |
 | PHPlist | phpList is an open source mailing-list/newsletter system. |
 | phpMyChat | phpMyChat is an open source real-time chat system. |
 | phpMyCounter | phpMyCounter is a highly-configurable free webpage hits counter. phpMyCounter was last updated in 2002 and is no longer supported by the author. |
 | phpMyFAQ | phpMyFAQ is a powerful free frequently asked questions system. |
 | PHProjekt | PHProjekt is an open source groupware system. |
 | phpShop | phpShop is an open source e-commerce shopping cart system. |
 | Pivot | Pivot is an open source blog system. Pivot is also known as Pivotlog. |
 | Power File Manager | Invision Power File Manager is a free web file manager. Power File Manager was last updated in 2005 and is no longer supported by the author. |
 | Search Engine Project | The Search Engine Project is an open source website search system. |
 | Simple Machines Forum | Simple Machines Forum is a free forum system. Simple Machines Forum forked from the YaBBSE project in 2003. |
 | Simple Poll | Simple Poll is a free (for non-profit use) survey/poll system. Simple Poll was last updated in 2004. |
 | SiteBar | SiteBar is an open source link management system, with search capabilities. |
 | Site Recommender | Site Recommender is an open source "recommend my site" emailer. A commercial version with newer updates is available on the website. |
 | Soholaunch | Soholaunch is a free website builder system. Additional features can be purchased from the website. |
 | SugarCRM | SugarCRM is an open source customer relations management system. Commercial versions are available on the website. |
 | WebCalendar | WebCalendar is an open source calendar script. |
 | WebCards | WebCards is an open source electronic greeting card system. |
 | WordPress | Wordpress is an open source blog system, and is the most-used self hosted blog script on the Internet. Wordpress forked from the b2/cafelog project in 2003. |
 | XMB Forum | XMB is an open source forum system. |
 | Xoops | Xoops is an open source portal system. Xoops forked from the PHP-Nuke project in 2002. |
 | Zen Cart | Zen Cart is an open source e-commerce application. Zen Cart forked from the osCommerce project in 2003. |
 | Zikula | Zikula is an open source portal system. Zikula forked from the PHP-Nuke project in 2001. |
