Welcome to XULPlanet
The XML User Interface Language (XUL) is a markup language for describing user interfaces. With XUL you can create rich, sophisticated cross-platform web applications easily.
XulPlanet News
27 March 2008: Transistion to Devmo
After much discussion (and procrastination), we have decided to begin phasing out XulPlanet in favor of the official Mozilla Developer Center. Documentation on devmo has been more updated than most of what's on XulPlanet for some time now, and has the benefit of full (wiki-based) community collaboration, multilingual capabilities, and other fun things we never got working here.
For more information (and a place to provide comments), see this old blog posting, and this old newsgroup thread.
Learn XUL
What is XUL?
Find out what XUL is and why you would want to use it to create applications.
Main XUL Tutorial
Learn XUL easily using the detailed step by step XUL guide, complete with examples.
Guides and References
Developer Guide
Guide to Mozilla application and component development.
RDF Guide
Details about using RDF in XUL and Mozilla.
XUL Element Reference
Detailed reference of all XUL elements, attributes and properties.
Script Object Reference
Reference of objects that are available from unprivileged JavaScript.
XPCOM Reference
Reference to Mozilla's native components and interfaces.
Need Help?
XUL Questions & Examples
Examples and answers to common questions about XUL.
Discussion Forum
Get help from other XUL developers.