Context sensitive completion for OCaml in Vim and Emacs
The IDE for competitive programming
Phoenix is a modern open-source Code Editor for the web
A Rust compiler front-end for IDEs
Common Lisp editor/IDE with high expansibility
Open-source, cross platform Qt based IDE for reverse-engineering
Visual editor for open FPGA boards
RStudio is an integrated development environment (IDE) for R
A fast and lightweight IDE
A web based file manager, web IDE / browser based code editor
Learn Java the easy way!
A powerful editor and graphical debugger for code written in Scilab
uIDE (Micro IDE) is a free, open-source IDE for GPUtils
Vampirio Code, a great Code Editor and Compiler
TclTk-IDE for development and testing tcltk-apps
Kile is a feature-rich LaTeX editor
Kisekae UltraKiss is a full featured integrated development environmen
RAD Tool and IDE for PHP, JSP, ASP, C++ and Java Swing
Cross-platform IDE for developing embedded solutions and desktops
AndroidIDE is an IDE for Android to develop full featured Android apps
Thinking notebook and Markdown editor
The developer platform for on-demand cloud development environments
Web IDE in single HTML file
Static site IDE is a Static Site Generators aka Static Site Editor