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.

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  • 1
    JReversePro is a Java Decompiler / Disassembler written in Java. Facility to view the ConstantPool contents is available. AWT, Swing and command-line versions are present.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 2
    Co-op Composition Workbench
    Co-op is a workbench for the definition and use of composition operators: abstractions that can encapsulate standard solutions such as coding idioms, design patterns and composition techniques, and can later be (re-) used just like library classes.
    Downloads: 3 This Week
    Last Update:
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  • 3
    The goal of the project is to create specifications and provide reference parser in Java and C# for Extensible Term Language.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 4
    Kopi
    Kopi provides a development environment for interactive database applications using Java, JDBC and Swing. It extends the Java language with money, date and time types, adds operator overloading and allows seamless integration of SQL.
    Downloads: 3 This Week
    Last Update:
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  • 5
    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]
    Downloads: 1 This Week
    Last Update:
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  • 6
    RES is a pure Java based Open Source Cobol to Java translator. It creates maintainable Java code for a subset of VS Cobol syntax. It has been developed with JDK, JTB and Javacc.
    Downloads: 1 This Week
    Last Update:
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  • 7
    Data Manipulator is a pure Java GUI interface for SQL databases. Not only an administrative tool, but one that allows a user to create forms and reports. Additionally A Java programmer can use code with Forms, reports a stand alone to manipulate the data
    Downloads: 2 This Week
    Last Update:
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  • 8
    Hades aims to become the reference open source environment for developing, validating and deploying PLUTO (Procedure Language for Users in Test and Operations) procedures.
    Downloads: 2 This Week
    Last Update:
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  • 9
    a Java source to C code translator
    Downloads: 2 This Week
    Last Update:
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  • 10
    Java AS400 RPG source code editor, debugger, IDE.
    Downloads: 2 This Week
    Last Update:
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  • 11
    A java class assambler. This program assembles java byte code instructions for the JVM, like MASM for the CPU. Knowledge of the java byte code instruction is strongly required.
    Downloads: 2 This Week
    Last Update:
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  • 12
    Java Modeling Language (JML)
    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
    Downloads: 2 This Week
    Last Update:
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  • 13
    ParaPascal
    ParaPascal is a programming language, an integrated development environment and simulator for learning concurrent programming.
    Downloads: 2 This Week
    Last Update:
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  • 14
    New object-oriented programming language based on Java, with the following advanced features: parametric types, anonymous functions, multi-methods, tuples, optional parameters. Nice also detects more errors during compilation (null pointers, casts).
    Downloads: 2 This Week
    Last Update:
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  • 15
    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: 2 This Week
    Last Update:
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  • 16
    Tool for managing patch codes for the Nintendo Wii. Formats this tool handles are common to Gecko OS and popular Wii homebrew software. This is one of very few complete cross-platform GCT compilers and the only known GCT decompiler and merge tool.
    Downloads: 2 This Week
    Last Update:
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  • 17
    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.
    Downloads: 2 This Week
    Last Update:
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  • 18
    Asterix IDE
    Asterix IDE (Integrated Development Environment) is especially designed to provide many languages supports in one IDE. Asterix IDE offers superior support for JAVA, C/C++(mingw32-g++) and HTML developers to write, compile and run their code at one place. Asterix IDE lets you quickly and easily make program with multiple programming language support. With its constantly improving Java Editor, many rich features and an extensive range of tools are provided. An IDE is much more than a text editor. Asterix IDE offers superior support for JAVA and HTML5 developers, providing comprehensive editors and tools. Asterix IDE can be installed on all operating systems that support Java, from Windows to Linux to Mac OS systems. Write Once, Run Anywhere, is as true for Asterix IDE as it is for your own applications, because Asterix IDE itself is written in Java, too!
    Downloads: 1 This Week
    Last Update:
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  • 19
    QJ-Pro is a sophisticated code quality assessment and coding standards technology for Java development detecting potential software defects at compile time. It offers the ability to significantly reduce code review effort by automating a major portion of
    Downloads: 1 This Week
    Last Update:
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  • 20
    CITkit (Compiler and Interpreter ToolKIT) is a collection of Java libraries that implement the more mundane aspects of a compiler or interpreter: symbol tables, tree intermediate representations, linear intermediate representations.
    Downloads: 1 This Week
    Last Update:
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  • 21
    Clue is an experimental C compiler that generates code for high-level dynamic languages such as Lua, Javascript, Perl5 and Common Lisp, as well as non-dynamic languages like C and Java. It supports the complete ANSI standard, including pointer arithmetic
    Downloads: 1 This Week
    Last Update:
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  • 22
    ContractChecker is a small tool to provide support for some design by contract features to standard Java code. Internally, it is composed of an Ant task, which invokes a doclet to generate AspectJ and the AjcTask itself in order to compile it.
    Downloads: 1 This Week
    Last Update:
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  • 23
    EXTE recognizes temporal expressions in a text. Temporal expressions are any references to the TIME e.g.: "today", "12th march 2006", "as soon as he woke up". This analyzer will recognize three languages: Spanish, English and French.
    Downloads: 1 This Week
    Last Update:
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  • 24
    Flow4J is a java framework, that enables the user to model process flow with a gui interface. The flow may include tasks, decisions or calls to other process flows. The saved flow is in a jar file together with its bytecode.
    Downloads: 1 This Week
    Last Update:
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  • 25

    From PEG to a practical parser

    Transcribe Parsing Expression Grammar into a parser written in Java.

    Tool to transcribe Parsing Expression Grammar into a parser written in Java. Parsing Expression Grammar (PEG) is a way to specify recursive-descent parsers with limited backtracking. The use of backtracking lifts the LL(1) restriction usually imposed by top-down parsers. In addition, PEG can define parsers with integrated lexing. Unlike some existing parser generators for PEG, the tool does not produce a complex and storage-hungry "packrat parser", but a collection of transparent recursive procedures. The tool can handle left recursion. An integral feature of "Mouse" is the mechanism for specifying semantics (also in Java). This makes "Mouse" a convenient tool if one needs an ad-hoc language processor. Being written in Java, the processor is operating-system independent. Included in the package is PEG Explorer, an interactive tool to investigate the effect of limited backtracking. Sample grammar for Java is available from the Web Site.
    Downloads: 1 This Week
    Last Update:
    See Project