Netbeans - Free and Open-Source IDE for Java Development and More. The NetBeans IDE is a free, Open-Source Integrated Development Environment for software developers. The IDE runs on many platforms including Windows, Linux, Solaris, and the MacOS. The NetBeans IDE provides developers with all the tools they need to create professional cross-platform desktop, enterprise, web and mobile applications. NOTES: To use an specified locale you should execute netbeans as: netbeans --locale $LANGOPT where $LANGOPT can be 'ja','zh:CN' or 'pt:BR', default is english. If you want to make this a default option for netbeans, then add it into the line #6(netbeans_default_options) in the file /opt/netbeans/etc/netbeans.conf GlassFish and Apache Tomcat are not available in this package.