Fully-featured Java IDE written completely in Java, with many modules available
Easy-To-Use Java Gui Builder
Create professional-looking Java GUIs by placing and aligning components on a canvas.
Visual Web and Java EE Development
Build standards-based web applications visually using Ajax, CSS, and JSF. Full set of tools for EJB development.
Visual Mobile Development
Create, test and debug GUI applications that run on mobile phones, set-top boxes, and PDAs.
Visual UML Modeling
Separate software design from implementation with UML Modeling.
Ruby and Rails Support
Powerful Ruby editor (with code completion), debugger, and full support for Rails. Includes the jRuby runtime.
C and C++ Development
Full-featured C/C++ editor, debugger, project templates, and support for multiple project configurations you can free download NetBeans IDE 5.5 now.