Apache NetBeans
Kotlin code completion, diagnostics and more for any editor/IDE
Phoenix is a modern open-source Code Editor for the web
A web based file manager, web IDE / browser based code editor
AstroNvim is an aesthetic and feature-rich neovim config
A free C, C++ and Fortran IDE
an OSGi-based Swing Application Framework
Kile is a feature-rich LaTeX editor
Customizable multiplatform development environment.
A powerful editor and graphical debugger for code written in Scilab
Learn Java the easy way!
Web IDE in single HTML file
IDLE Extensions
A syntax highlighting, code folding text component written in Swing
Launch an external diff tool like WinMerge in Eclipse
Eclipse plugin for VCS ClearCase