Summary : A C++ IDE

Description :
Code::Blocks is a free C++ IDE built specifically to meet the most
demanding needs of its users. It was designed, right from the start,
to be extensible and configurable.
Built around a plugin framework, Code::Blocks can be extended with
plugin DLLs. It includes a plugin wizard so you can compile your own
plugins!

URL : http://www.codeblocks.org/
License : GPLv3