A powerful wiki in JavaLanguage. http://www.xwiki.org/

* Wiki syntax (uses it's own polyglot rendering engine, see http://rendering.xwiki.org)
* Content management (view/edit/preview/save)
* VersionControl
* Attachments
* Rights Management
* Full-text Search

It also has many advanced features that many other wiki engines lack:

* Document Templates to ease creation of common documents.
* RelationalDatabase storage using Hibernate.
* Design Engine for Meta-Data and Forms.
* In-place (inline) editing of form information in pages.
* Powerful programming API in documents ([Velocity>http://jakarta.apache.org/velocity] or [Groovy>http://groovy.codehaus.org])
* Search API for more detailed searching in the Meta-Data.
* Plugin System in Java.
* Plugin compatibility layer in perl with some TwikiClone plugins.
* Scalability and Performance using J2EE.
* Complete Skin System (templates content as well as CSS).
* ReallySimpleSyndication output and display of external RSS feeds
* Multi-Lingual capabilities
* REST and XML/RPC Remote API
* Portlet Integration
* Integrated Statistics
* PDF Export
* WYSIWYG HTML Editing

Before building XWiki, I have been a long time user of TWiki which has been a great source of inspiration for XWiki. I'm also very impressed by the work done on SnipSnap (and Radeox, which is used in XWiki) as well as AtlassianConfluence (although I regret it is not open-source). -- LudovicDubost in 2003

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CategoryWikiImplementation