A fast and lightweight IDE
Apache NetBeans
IntelliJ IDEA & IntelliJ Platform
binary releases of VS Code without MS branding/telemetry/licensing
High-performance, multiplayer code editor from the creators of Atom
Ace (Ajax.org Cloud9 Editor)
The IDE for competitive programming
jEdit is a programmer's text editor written in Java.
Lightweight modular front-end framework for developing web interfaces
AndroidIDE is an IDE for Android to develop full featured Android apps
Vampirio Code, a great Code Editor and Compiler
Nyquist is a language for sound synthesis and music composition.
The allRound pocket sized CodeEditor.
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
A hackable text editor for the 21st Century
Web IDE in single HTML file
Simple, free and open-source online code editor
A modern, lightweight yet powerful text editor
An open source gui frontend application for GNU Octave
Browser based code editor, allowing you to code from anywhere
Mini Java IDE and Swing builder