Open-source, cross platform Qt based IDE for reverse-engineering
Kotlin code completion, diagnostics and more for any editor/IDE
Kile is a feature-rich LaTeX editor
AndroidIDE is an IDE for Android to develop full featured Android apps
Thinking notebook and Markdown editor
Web IDE in single HTML file
text editor consol based and an IDE
An Eclipse plug-in for the IBM FileNet P8 Content Engine and CMIS