JUCE is an open-source cross-platform C++ application framework
A plugin to improve Notepad++
Lightweight and easy to use cross-platform C++ IDE
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
Cross-platform IDE for developing embedded solutions and desktops
SynEdit in C++ for C++Builder
C++ IDE easy and complete.
Unicode DB Input Method for the Text Services Framework (MS Windows)
Open, edit .tmx files and set specific metadata
Trim Lines removes trailing whitespace from source code files
Text Editor for Ruby