A reverse engineering suite (decompiler, editor, debugger and more)
Simple and flexible programming language for applications development
Vampirio Code, a great Code Editor and Compiler
Free 32/64/16-bit multi-platform Pascal and Object Pascal compiler
JPHP - an implementation of PHP on Java VM
Easy reskin, clone and build android app.
Decompile an Android APK
ApkDissector is a Java Based Android APK Decompiler
android app for CodePad.org & ideone.com