Blogging
Wordpress
WordPress.com lets you get started with a new and free. WordPress-based blog in seconds. WordPress.com is a hosted version of the open source package where you can start a blog in seconds without any technical knowledge.
Download Wordpress
Content Management System
Joomla
Joomla is an award-winning content management system (CMS), which enables you to build Web sites and powerful online applications. Joomla is an open source solution that is freely available to everyone.
Download Joomla
Drupal
Drupal is a free software package that allows an individual or a community of users to easily publish, manage and organize a wide variety of content on a website.
Download Drupal
Customer Support
Helpdesk Pilot
Helpdesk Pilot is a web based help desk software that makes handling customers easy. Manage tickets, agents, and make your customers admire your efficiency with HelpDeskPilot. Use Helpdeskpilot to keep customers coming back, and to improve products and services, businesses need to communicate with customers and other businesses.
Download Helpdesk Pilot
Discussion Boards
PHPBB
phpBB is the most widely used opensource bulletin board system. It has an extensive administration panel, which allows the customization of even the most intricate features without having to edit code
directly.
Download PHPBB
GetVanilla
Vanilla is an open-source, standards-compliant, multi-lingual, fully extensible discussion forum for the web. Anyone who has web-space that meets the requirements can download and use Vanilla for free!
Download GetVanilla
vBulletin
vBulletin is a professional, affordable community forum solution. vBulletin makes your site a hub for information and discussion, this encourages visitors to return again and again.
Download vBulletin
E-Commerce
Magento
Magento ecommerce provides a platform that combines the flexibility of open source technology with industry-leading features to provide merchants unprecedented control over store operations.
Download Magento
OSCommerce
osCommerce Online Merchant is an Open Source online shop e-commerce solution that is available for free. It features a rich set of out-of-the-box online shopping cart functionality that allows store
owners to setup, run, and maintain online stores with minimum effort.
Download OSCommerce
Email Systems
SquirrelMail
SquirrelMail is a standards-based webmail package. It has very few requirements and is very easy to configure and install. SquirrelMail has all the functionality you would want from an email client,
including strong MIME support, address books, and folder manipulation.
Download SquirrelMail
Atmail
Atmail provides an enhanced Webmail platform for your existing mail-server via IMAP/POP3. The also provide a complete Email server, messaging and Groupware platform.
Download Atmail
Ilohamail
IlohaMail is a light weight yet full featured multilingual webmail program that is easy to use and install. It runs on a stock build of PHP, and does not require databases or the IMAP library.
Download Ilohamail
Live Chat
PHPlive
An innovative application for note taking and outlining. Takes time to get used to, but some people swear by it. An innovative application for note taking and outlining. Takes time to get used to, but some people swear by it.
Download PHPlive
Note Making
Dokuwiki
DokuWiki is a standards compliant, simple to use Wiki, mainly aimed at creating documentation of any kind. It is targeted at developer teams, workgroups and small companies. It has a simple but powerful syntax which makes sure the datafiles remain readable outside the Wiki and
eases the creation of structured texts.
Download Dokuwiki
Mediawiki
MediaWiki is a free software wiki package originally written for Wikipedia. It is now used by several other projects of the non-profit Wikimedia Foundation and by many other wikis, including this website,
the home of MediaWiki.
Download Mediawiki