Chyrp is a blogging engine designed to be very lightweight while retaining functionality. It is powered by PHP and has very powerful theme and extension engines, so you can personalize it however you want.
Chyrp HostingSerendipity is a PHP-powered weblog application which gives the user an easy way to maintain an online diary, weblog or even a complete homepage. While the default package is designed for the casual blogger, Serendipity offers a flexible, expandable and easy-to-use framework with the power for professional applications.
Serendipity HostingJavaScriptMVC is an open-source rich Internet application framework based on jQuery and OpenAjax.
JavaScriptMVC HostingjCore server is the core system on which you can build your jCore client sites.
jCore HostingAnchor is a super-simple, lightweight blog system, made to let you just write.
Anchor HostingPRADO is an open source, object-oriented, event-driven, component-based PHP web framework.
PRADO HostingCannon.js is an open source JavaScript 3D physics engine.
Cannon.js HostingGoogle Web Toolkit, or GWT Web Toolkit, is an open source set of tools that allows web developers to create and maintain complex JavaScript front-end applications in Java.
Google Web Toolkit HostingOpenCms is an open source content management system written in Java.
OpenCms HostingdotCMS is an open source content management system (CMS) written in Java for managing content and content driven sites and applications.
dotCMS HostingHippo CMS is an open-source, dual licensed, Content Management System.
Hippo CMS HostingOpenKM is a Free/Libre document management system that provides a web interface for managing arbitrary files.
OpenKM HostingSmartClient is set of mobile and cross-browser HTML5 UI components combined with a Java-based Ajax framework, created by Isomorphic Software to build business web applications.
SmartClient HostingLiferay makes software that helps companies create digital experiences on web, mobile and connected devices.
Liferay HostingXWiki is a free wiki software platform written in Java with a design emphasis on extensibility.
XWiki HostingMagnolia is an open-source digital business platform with a content management system (CMS) at its core.
Magnolia HostingApache Roller is a Java-based Open Source "full-featured, Multi-blog, Multi-user, and group-blog server suitable for blog sites large and small".
Apache Roller Hosting