Dex to Java decompiler

A tool for reverse engineering Android apk files

Tools to work with android .dex and java .class files

Digital logic design tool and simulator

JPEXS Free Flash Decompiler

A digital logic designer and circuit simulator.

Java wrapper for the popular chat & VOIP service: Discord https://discord.com

JPHP - an implementation of PHP on Java VM

Java to Closure JavaScript transpiler

MVEL (MVFLEX Expression Language)

Lightweight, fast, Java-centric Lua interpreter written for JME and JSE, with string, table, package, math, io, os, debug, coroutine & luajava libraries, JSR-223 bindings, all metatags, weak tables…

Beanshell scripting language

A JVM assembler for the modern age

Ecstasy and XVM

A desktop image editor

PictoChat web app with a server written in Java!

Project Oberon emulator in JavaScript and Java

Simple Java and Groovy hot class reloader and Java based shell and scripting

AS3 w/o Flash Plugin

A modular ComputerCraft emulator.

The Repository for the files the Basic project that creates the BASIC! APK for Google Play

The J2ME Polish project

"J2SE for Android" provides Swing and AWT classes, so you can run J2SE application on Android with this library.

Simple UDG (User Defined Graphics) character editor for Sinclair ZX Spectrum BASIC.

The Tea scripting language.

Improves the AWT and Java2D interfaces and implements external backends to AWT/Java2D.

A JVM language that was developed in 2005-2008

Morphic in Java