JetBrains Meta programming System
Code::Blocks (STM32) Online installer
Z-machine IDE for Inform and ZIL
Eclipse integration for Isabelle proof assistant
An Eclipse plug-in for the IBM FileNet P8 Content Engine and CMIS
MpyEditor is an Editor for creating Microcontroller Programs
A code editor for the D programming language
Lua Editor
Ultra Lightweight Universal IDE
Developer's friendly IDE
Design Reports XSL based and generate to PDF
The Scratch mod, Tiger
the disruptive IDE for COBOL developers