A free C, C++ and Fortran IDE
Lightweight and easy to use cross-platform C++ IDE
Modernized fork of NEdit, with unicode support and AA text rendering
Kile is a feature-rich LaTeX editor
LiteIDE is a simple, open source, cross-platform Go IDE.
Open Source C & C++ IDE for Windows
IDLE Extensions
CodeLite: an open source, cross platform C/C++/PHP and JavaScript IDE
Vim-like editing in Eclipse
Electronic design and programming tools suite like Eagle, MpLab
A free, portable, fast and simple C/C++ IDE
A tiny and lightweight IDE for the Go programming language
Tools to support the learning of the C programming language
An IDE for lpsolve made in C language
Graph algorithms interpreter, IDE, debugger, 3D visualizations.