Browse free open source Java Compilers and projects below. Use the toggles on the left to filter open source Java Compilers by OS, license, language, programming language, and project status.

  • Auth0 for AI Agents now in GA Icon
    Auth0 for AI Agents now in GA

    Ready to implement AI with confidence (without sacrificing security)?

    Connect your AI agents to apps and data more securely, give users control over the actions AI agents can perform and the data they can access, and enable human confirmation for critical agent actions.
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  • Free and Open Source HR Software Icon
    Free and Open Source HR Software

    OrangeHRM provides a world-class HRIS experience and offers everything you and your team need to be that HR hero you know that you are.

    Give your HR team the tools they need to streamline administrative tasks, support employees, and make informed decisions with the OrangeHRM free and open source HR software.
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  • 1
    Chasm-interop is a set of tools that parses C++ and Fortran 90 source files and automatically generates bridging code to provide for seamless language interoperability.
    Downloads: 0 This Week
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  • 2
    An error-tolerant parser for the theoretical computer language L2, defined by Sattar et. al.
    Downloads: 0 This Week
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  • 3
    The compilerMonitor persists a record of all javac error messages and the sources that caused/fixed the errors. It is a CAUSE (computer-aided usability engineering) tool that analyzes interaction between a developer and the compiler.
    Downloads: 0 This Week
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  • 4
    {sets} is a lightweight constraint programming language. The uniqueness of {sets}, is that it uses ROBDD ( Reduced Ordered Binary Decision Diagrams ) to represent and solve constraints.
    Downloads: 0 This Week
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  • Desktop and Mobile Device Management Software Icon
    Desktop and Mobile Device Management Software

    It's a modern take on desktop management that can be scaled as per organizational needs.

    Desktop Central is a unified endpoint management (UEM) solution that helps in managing servers, laptops, desktops, smartphones, and tablets from a central location.
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  • 5

    cowbel (obsolete)

    An experimental programming language

    cowbel is a minimalist experimental programming language. It features strict types, static compilation into real machine code (via C), an object oriented system based on interfaces and composition, generics, no null, and a global garbage collector. It is intended to produce fast, tight code for use in systems programming, and to show that you don't need a complex language to be expressive and usable. We've moved! Go to http://cowlark.com/cowbel instead.
    Downloads: 0 This Week
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  • 6
    cpp2xml

    cpp2xml

    A tool to convert C++ definitions into XML

    cpp2xml is a tool to convert C/C++ definitions into XML. The main goal is to use the XML as input to code generation tools, but any other usage may be imagined.
    Downloads: 0 This Week
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  • 7

    crypting

    Web based arduino programming suite

    A simple and direct web based arduino programming suite. Development will start soon.
    Downloads: 0 This Week
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  • 8
    Dedex converts Android .dex files back into Java VM class files, which can then be subsequently executed or analysed using more commonly available tools.
    Downloads: 0 This Week
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  • 9
    The aim of the project is to write an distributed object compiler/interpreter. Object reside on special server and can be accessed in a java/c++ style programming language through a network. This project is currently being renamed please check http://obj
    Downloads: 0 This Week
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  • eProcurement Software Icon
    eProcurement Software

    Enterprises and companies seeking a solution to manage all their procurement operations and processes

    eBuyerAssist by Eyvo is a cloud-based procurement solution designed for businesses of all sizes and industries. Fully modular and scalable, it streamlines the entire procurement lifecycle—from requisition to fulfillment. The platform includes powerful tools for strategic sourcing, supplier management, warehouse operations, and contract oversight. Additional modules cover purchase orders, approval workflows, inventory and asset management, customer orders, budget control, cost accounting, invoice matching, vendor credit checks, and risk analysis. eBuyerAssist centralizes all procurement functions into a single, easy-to-use system—improving visibility, control, and efficiency across your organization. Whether you're aiming to reduce costs, enhance compliance, or align procurement with broader business goals, eBuyerAssist helps you get there faster, smarter, and with measurable results.
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  • 10
    dxcut is a library for reading, editing, and writing dex and odex files which contain the class definition and Dalvik bytecode used by the Android operating system. This project includes a disassembler/decompiler, dex optimizer, and hooking utils.
    Downloads: 0 This Week
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  • 11
    The alpha version description: A dynamic evaluator of mathematical expression. This project aim to teach and train for compiler and interpretor coding.
    Downloads: 0 This Week
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  • 12
    fun4j brings functional programming to the JVM. It's a framework that integrates major concepts from functional programming into the Java Platform. It also provides seamless integration of Java with Lisp coding, by using a lisp-to-bytecode compiler.
    Downloads: 0 This Week
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  • 13

    ghaggis

    GHC : Glasgow Haggis Compiler

    This is a compiler for the 'pseudocode' Haggis used by the Scottish Qualifications Authority for specifying pseudo code. The compiler is implemented in Java.
    Downloads: 0 This Week
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  • 14
    A logic programming language that interoperates with Java.
    Downloads: 0 This Week
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  • 15
    GrView é um gerador gráfico de analisadores sintáticos, a partir de grafos. Possui diversas opções para a configuração e criação desses analisadores.
    Downloads: 0 This Week
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  • 16
    iFlow is an open source visualization software that transforms programs into interactive control flow graphs. It can be used for educational or presentational purposes. APIs are provided for potential control analysis or even compiler optimizations.
    Downloads: 0 This Week
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  • 17
    iTTCP means "integrated TTCP". The project integrates the TTCP compiler into Eclipse environment and allows so developing and running testcases, specified in TTCN-3 language.
    Downloads: 0 This Week
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  • 18
    jRate is a real-time Java compiler and runtime system (based on GNU GCJ) with support for much of the Real-Time Specification for Java (RTSJ), including threading constructs with real-time constraints, asynchronous event handling, and memory regions.
    Downloads: 0 This Week
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  • 19
    This is a set of tools to work with Java classes. It resembles certain Unix commands that work with ELF -- like ldd, nm, dump etc. and provide class disassembly capability.
    Downloads: 0 This Week
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  • 20
    Tools for enforcing projects architecture specifications. Identification of "patterns" based on nomenclature rules. Validation of conformance to architecture rules. Query-based investigation. Statistics. Metrics.
    Downloads: 0 This Week
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  • 21
    Java bytecode to native code compiler striving for small, standalone executables.
    Downloads: 0 This Week
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  • 22
    Javaruntype is a library which offers a runtime objectual representation of the Java type system
    Downloads: 0 This Week
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  • 23
    jclasslib is now located at https://github.com/ingokegel/jclasslib
    Downloads: 0 This Week
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  • 24
    Jexpel is a library of compiling and execution of expressions for java whose the syntax is compatible with some of most popular expression languages.
    Downloads: 0 This Week
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  • 25
    A Java 2 (JDK 1.3/1.4) compatible virtual machine. joeq is unique in that it is almost entirely implemented in Java, making it reliable and efficient. It is also language-independent, so code from any language can be seamlessly and dynamically compiled.
    Downloads: 0 This Week
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