The CDT Project provides a fully functional C and C++ Integrated Development Environment based on the Eclipse platform. It's been around a long time now and is both stable and robust. But, if you're dead set on an IDE, the standard for open source, free IDEs is Eclipse.įor C and C++ development, Eclipse has the CDT framework which gives you all of its heavyweight IDE-type things for your C and C++ code: introspection, code completion, refactoring tools, syntax highlighting, debugger integration and so on. My opinion is that IDEs do nothing good and a lot of things poorly and that you should look to build your dev environment out of a suite of tools that focus on doing small things well.