Open Source Java Compilers

JSmooth creates standard Windows executable files (.exe) that smartly launch java applications. It makes java deployment much smoother and user-friendly, as it is able to find and run Java VMs by itself, or help the user get one if none are available.

Jad Java decompiler plugin for Eclipse IDE.

Develop with Java 1.5, deploy native executables for windows, linux and mac! SWT, JFace, AWT and Swing is supported.

Dynamic and static analysis with Real Time Malware Analysis with Antivirus for Windows, including open-source XDR (3 EDR projects), ClamAV, YARA-X, machine learning AI, behavioral analysis, Unpacker, Deobfuscator, Decompiler, website signatures, Ghidra, Suricata, Sigma, Kernel, Hypervisior based protection and much more than you can imagine.

z390 Portable Mainframe Assembler and Emulator

Compile your clarion source code into java runtime environment. Includes the compiler, 100% java based runtime implementation of the clarion runtime environment and other miscellaneous tools.

We extend the Eclipse IDE with tools for development in Haskell, a functional programming language, providing support for a wide range of tools (compilers, interpreters, doc tools etc.) in a coherent, convenient and configurable environment.

openASN.1 is an Open Source Java toolkit for the Abstract Syntax Notation One (ASN.1) which consists of a compiler and codec with a low footprint runtime library.

Este projeto visa o desenvolvimento e produção de uma ferramenta de compilação da pseudo-linguagem português estruturado (portugol) para auxliar estudantes brasileiros iniciando em atividades de programação.

JavaGuard is a general purpose bytecode obfuscator, designed to fit effortlessly into your regular build and testing process, providing peace of mind that your valuable Java code is more secure against decompilation and other forms of reverse engineering

An API and a graphical tool for inspection (viewing, searching and comparing) and manipulation (modification, obfuscation, refactoring of methods, fields, attributes and code) of classfiles for the Java platform.

jdec is a Java Decompiler. It can be used to reverse the bytecodes present in a .class File to produce a Java Source File which can be nearly correct or equivalent (Due To different Interpretations) to the original java file.[With UI & command line]

A programming language AL-IV (ALFOUR) is a high-level imperative object oriented programming language with minimal introduction level, easy porting to any platform claiming a very high level of safety and stability, with a controllable level of code protection, high efficiency of an executable code, full independence from a target platform, minimal enter level.

AspectJ integration with Netbeans. AspectJ enables aspect-oriented programming for Java. This module supports building AspectJ programs and navigating crosscutting structure within NetBeans and SunOne/Forte IDEs.

An android client of CodePad.org & ideone.com CodePad.org is an oneline free multi-language compiler for developers. ideone provide non-free services for the same work. ideone is much more powerful Now the tool support C,C++,Java (for ideone), Bash (for ideone), R (for ideone), Python, Ruby, Perl, PHP

This sourceforge site for the project is now DEPRECATED and not updated. All current work and new releases are on github: https://github.com/OpenJML/OpenJML. The Java Modeling Language (JML) is a behavioral interface specification language that can be used to specify the behavior of Java modules (as in design by contract -- DBC). It has many tools to do assertion checking, unit testing, etc. The principal current tool of the project is OpenJML -- cf. https://www.openjml.org, with binary downloads from https://github.com/OpenJML/OpenJML/releases/latest

OJ (f.a.k.a. OpenJava) is an object-oriented macro system with a compile time metaobject protocol for Java.

TreeDL (Tree Description Language) is a notation for tree structures used by programs (like syntax trees) and tool for translation of tree descriptions to target programming language, docs generation, etc. Tool's functionality can be extended by plugins.

JAC (Java Asn1 Compiler) is a tool for you if you want to (1)parse your asn1 file (2)create .java classes and (3)encode/decode instances of your classes. Just forget all asn1 byte streams, and take the advantage of OOP! BER, CER and DER are all supported

ECL is a system-level specification language for HW/SW designs and is based on Esterel and C. The ECL compiler parses ECL, writes Esterel and C, and uses the Esterel compiler to produce an implementation. Originally developed at Cadence Berkeley Labs.

Open source mini Python compiler written in Java using Sablecc as parser generator.

Java AS400 RPG source code editor, debugger, IDE.

Jaby=Java+Ruby Jaby is a programming language that extends Java with the syntax of do/yield in Ruby. Jaby also provide a set of library that written in Jaby.

Introspect on running programme, view and alter object fields and methods. Edit the code of any method at runtime; apply the changes to any combination of objects, such as an array, or a complete class. Complete rewrite underway available Jan 2007.

jpaul is a Java implementation of several algorithms widely used in program analysis. It emphasizes flexibility and ease-of-use and is independent of any specific compiler infrastructure project. BSD Licence.