Eclipse is an open source IDE and platform for building applications. There is a wide variety of plugins for various programming languages and other development-oriented tools (such as modelling, database browsing, etc.).
Eclipse is an open-source ide platform written mostly in java and primarily used for Java development through the use of the Java Development Tools (JDT) plugin. It is notable for its rich ecosystem of free and commercial plugins.
When combined with Cygwin (or MinGW), Mono, and its many plugins, Eclipse provides a crucial part of viable open-source alternatives to using Microsoft visual-studio as a windows software development platform in Windows, whilst also including comprehensive native support for java.
Latest Version: Eclipse Luna (4.4.2 -12 January 2015)
Next Version: Eclipse Mars (4.5 - 24 June 2015 (planned))