Open-source, cross platform Qt based IDE for reverse-engineering
Kile is a feature-rich LaTeX editor
Cross-platform IDE for developing embedded solutions and desktops
CodeLite: an open source, cross platform C/C++/PHP and JavaScript IDE
Performance and Productivity at Scale
EtherCard is an IPv4 driver for the ENC28J60 chip
Electronic design and programming tools suite like Eagle, MpLab
Light-weight Scintilla-based text editor with syntax highlighting
Developer's friendly IDE
IDE for PIC microcontrollers
LPC Coding Library and GUI