A simple portable Code Editor for any language
Launch an external diff tool like WinMerge in Eclipse
QNC is a command line interface app for creating quick notes
A programmer-oriented testing framework for Java
A simple Bash IDE / Debugger
CAM XML Editor for XML+JSON+Hibernate+SQL Open-XDX sponsored by Oracle
Marathon supports testing of Java/Swing and Java/Fx applications.
Vector drawing program for LaTeX using PSTricks
Free and open-source style and grammar editor
HL7 Inspector is a tool for managing HL7 messages
An IDE for Clojure
Programming in MS Paint
A lightweight programming environment for Java
PUed - PlantUML Editor
vi vim plugin for netbeans
Yet Another Elasticsearch GUI Client
Map Generation Application and API
Java bytecode editor
A free cross-platform editor for the DRAKON visual language.
Combinatorial Interaction Testing Laboratory
UML diagram editor