The world's most popular open source database MySQL. Whether you run Windows, Mac OSX, Linux, OpenSolaris, or some other platform, there is likely a matching version of MySQL. Use PHP Perl, Python, Ruby, Java / JDBC, .NET, C#, Visual Basic.

Use Drupal to build everything from personal blogs to enterprise applications. Thousands of add-on modules and designs let you build any site you can imagine.

An open source office suite compatible with other major office suites, OpenOffice.org is free to download, use, and distribute. It comprises of Writer, Calc, Impress, Draw, Base and Math.

Joomla is an award-winning content management system (CMS), which enables you to build Web sites and powerful online applications. Many aspects, including its ease-of-use and extensibility, have made Joomla popular.

Web software you can use to create a beautiful website or blog. The core software is built by hundreds of community volunteers, and when you’re ready for more there are thousands of plugins and themes available.

Provides support for the Apache community of open source software projects. The Apache HTTP Server project is an effort to develop and maintain an open source HTTP server for modern operating systems.

Open source and freeware packages built and inst-packaged for IRIX® 6.5. The open source software packages on this site are authored and provided by many generous individuals and organizations throughout the world.

A dynamic, open source programming language with a focus on simplicity and productivity. It has an elegant syntax that is natural to read and easy to write.

An open source Web framework that is optimized for programmer happiness and sustainable productivity. It lets you write beautiful code by favoring convention over configuration.

An open source content management system capable of supporting all types and sizes of content-driven Web sites. A powerful and highly customisable templating system, easy-to-integrate social features, search engine friendly, and more.