Apache NetBeans
A fast and lightweight IDE
A tool to help eliminate NullPointerExceptions (NPEs) in your code
The IDE for competitive programming
Fast Binary Encoding is fast and universal serialization solution
Vampirio Code, a great Code Editor and Compiler
jEdit is a programmer's text editor written in Java.
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
Simple and flexible programming language for applications development
The allRound pocket sized CodeEditor.
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
Java bytecode editor
SQLite Editor and Compiler for PC, macOS and Linux
Edit Your files LaTeX and tex
A C Compiler/Editor for Retro 6809 Machines (Colour Computer/Dragon)
An open source gui frontend application for GNU Octave