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

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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  • Cut Data Warehouse Costs by 54% Icon
    Cut Data Warehouse Costs by 54%

    Easily migrate from Snowflake, Redshift, or Databricks with free tools.

    BigQuery delivers 54% lower TCO with exabyte scale and flexible pricing. Free migration tools handle the SQL translation automatically.
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  • 1

    MinGW - Minimalist GNU for Windows

    A native Windows port of the GNU Compiler Collection (GCC)

    MinGW: A native Windows port of the GNU Compiler Collection (GCC), with freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All of MinGW's software will execute on the 64bit Windows platforms.
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    Downloads: 2,610,749 This Week
    Last Update:
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  • 2
    SMC - The State Machine Compiler

    SMC - The State Machine Compiler

    Translates state machine into a target programming language.

    SMC takes a state machine stored in a .sm file and generates a State pattern in 14 programming languages. Includes: default transitions, transition args, transition guards, push/pop transitions and Entry/Exit actions. See User Manual for more info.
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    Downloads: 26 This Week
    Last Update:
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  • 3
    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.
    Downloads: 21 This Week
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  • 4
    Vector Pascal is a language targeted at SIMD multi-core instruction-sets such as the AVX and SSE2 or x86-64-v3. It has a SIMD compiler which supports parallel vector operations, loop unrolling, common sub expression removal etc. It is implemented in Java.
    Downloads: 19 This Week
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  • Ship Agents Faster Icon
    Ship Agents Faster

    Transform your applications and workflows into powerful agentic systems at global scale.

    Gemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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  • 5
    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.
    Downloads: 7 This Week
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  • 6
    JFlex

    JFlex

    The fast lexer generator for Java

    JFlex is a flex-like lexer generator for Java with emphasis on speed and full Unicode support. It has some not so usual features like negation in regexps and nested input streams. Also reads JLex specifications unchanged.
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    Downloads: 7 This Week
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  • 7
    OJ (f.a.k.a. OpenJava) is an object-oriented macro system with a compile time metaobject protocol for Java.
    Downloads: 6 This Week
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  • 8
    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
    Downloads: 1 This Week
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  • 9
    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.
    Downloads: 2 This Week
    Last Update:
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  • Paessler: Easy to Use With Enterprise Power. Free Trial Icon
    Paessler: Easy to Use With Enterprise Power. Free Trial

    A low-code dashboard makes monitoring intuitive for any admin, while scripting and custom sensors give experts full control.

    You shouldn't have to choose between a monitoring tool that's easy to use and one that's powerful enough for a complex environment. PRTG's low-code interface lets any admin build dashboards, set alerts and monitor devices without scripting, while custom sensors and full API access are there when your team needs deeper control. One platform, no compromise. Download a free 30-day trial now.
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  • 10
    RECODER is a Java framework for Java program analysis and source code transformation. It computes an easy to use syntactic and semantic program model containing cross references, and it supports transformation rollbacks and incremental model updates.
    Downloads: 2 This Week
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  • 11
    A framework for data-flow based program analysis, implemented as a set of Java APIs. By using this framework, researchers and developers can easily implement analyses, test their correctness, and evaluate their performance. In addition, the framework all
    Downloads: 1 This Week
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  • 12
    Java AS400 RPG source code editor, debugger, IDE.
    Downloads: 1 This Week
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  • 13
    JSource is a small Java IDE written in Java using entirely Swing components. It has a light but powerful editor that allows creating, editing, compiling, and running Java files. It also supports syntax highlighting for other programming languages.
    Downloads: 1 This Week
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  • 14
    JPP is a simple macro preprocessor for Java. It is entirely written in Java and provides C-like preprocessor commands like #define #undef #ifdef #ifndef #else #endif #include. More to be developed.
    Downloads: 1 This Week
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  • 15
    Plugins for Maven 1.x (http://maven.apache.org/maven-1.x/) - manage all aspects of your project (tests, docs, distribution) from a single project descriptor! This project provides plugins that are not bundled with Maven due to differing licenses.
    Downloads: 1 This Week
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  • 16
    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.
    Downloads: 1 This Week
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  • 17
    Plugin for Eclipse aiming at fully integrating AspectJ into Eclipse.
    Downloads: 0 This Week
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  • 18
    This is the implementation of the AspectJ plugin for NetBeans 6.0 and higher.
    Downloads: 0 This Week
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  • 19
    AspectJ integration with Borland's JBuilder IDE. Developers use the AspectJ language to do aspect-oriented programming for Java projects. They can compile and run AspectJ and Java programs, and navigate and view crosscutting structure in the editor an
    Downloads: 0 This Week
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  • 20
    Netflow analyzing tools : JXColl - collector for Netflow (or XML specified) data Analyzer - front-end application for providing an user interface and output (graphs, statistics, etc.)
    Downloads: 0 This Week
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  • 21
    BeanClipse is a NetBeans plugin for Eclipse: NetBeans runs embedded within the Eclipse platform as a plugin offering the best of both worlds to Java developers. May be just a joke ;-) .... Check also it's twin at : http://sf.net/projects/netclipse
    Downloads: 0 This Week
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  • 22
    CPMake. Cross platform make utility
    Downloads: 0 This Week
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  • 23
    The aim of this project is to develop a set of Eclipse plugins to enable a better experience for developers programming in C/C++ for the Cell BE architecture using Eclipse.
    Downloads: 0 This Week
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  • 24
    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: 0 This Week
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  • 25
    An architecture description language (DiaSpec) supports the description of components of a given distributed computing area. From these descriptions, DiaGen generates a dedicated programming framework to support distributed application development.
    Downloads: 0 This Week
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