Open-source, cross platform Qt based IDE for reverse-engineering
IntelliJ IDEA & IntelliJ Platform
Apache NetBeans
RStudio is an integrated development environment (IDE) for R
An implementation of a cross-platform dockable window system
A free C, C++ and Fortran IDE
Lightweight and easy to use cross-platform C++ IDE
A powerful, lighweight and cross-platform C/C++ IDE
Cross-platform IDE for developing embedded solutions and desktops
LiteIDE is a simple, open source, cross-platform Go IDE.
A hackable text editor for the 21st Century
Lightweight, cross-platform & full-featured shader IDE
Eclipse plugin for VCS ClearCase
CodeLite: an open source, cross platform C/C++/PHP and JavaScript IDE
An IDE for Clojure
The first dedicated IDE for React web application development
A lightweight programming environment for Java
Codenvy