The IDE for competitive programming
Open-source, cross platform Qt based IDE for reverse-engineering
Vivid3D is a C++ IDE/3D engine, with python scripting.
Cross-platform IDE for developing embedded solutions and desktops
A fast, portable, simple, and free C/C++ IDE
A visual-based IDE for C language uses block drag and drop technology
Qt Creator Cppcheck integration plugin
Electronic design and programming tools suite like Eagle, MpLab
Light-weight Scintilla-based text editor with syntax highlighting
Graph algorithms interpreter, IDE, debugger, 3D visualizations.
A code editor for the D programming language