use vim as IDE
Electronic design and programming tools suite like Eagle, MpLab
Light-weight Scintilla-based text editor with syntax highlighting
a DSL for type systems, reduction rules, interpreters for Xtext langs
Develop AMX NetLinx projects in the Sublime Text editor.
Develop Crestron Simpl+ modules in Sublime Text.
Browser based code editor, allowing you to code from anywhere
A Simple 'IDE'A for Linux Kernel Developers
A tiny and lightweight IDE for the Go programming language
Erlang Mode for QtCreator
Open source cloud & desktop IDE
A wxMax based IDE for the programming language BlitzMax
PHP Support for GNU Emacs
Turn gVim into a Crestron SIMPL+ IDE.
Graph algorithms interpreter, IDE, debugger, 3D visualizations.
Cloud-based Integrated Development Enviroment