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.

  • Fully Managed MySQL, PostgreSQL, and SQL Server Icon
    Fully Managed MySQL, PostgreSQL, and SQL Server

    Automatic backups, patching, replication, and failover. Focus on your app, not your database.

    Cloud SQL handles your database ops end to end, so you can focus on your app.
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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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  • 1
    ant4x

    ant4x

    Hub for some ant projects

    Hub for some ant projects (ant4hg, ant4git, ant4docbook, ...) to define common tools
    Downloads: 4 This Week
    Last Update:
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  • 2
    C3PO is a software synthesis tool that provides a solution for building maintainable, reliable and robust software infrastructures and/or compiler frontends from a set of attributed grammar rules in EBNF notation.
    Downloads: 4 This Week
    Last Update:
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  • 3
    A build automation and management tool. Source code, trackers, forums are available at http://www.javaforge.com/proj/summary.do?proj_id=70 Online demo is at http://livedemo.pmease.com:8081/luntbuild/luntbuild-login.jsp , use account/password demo/demo.
    Downloads: 4 This Week
    Last Update:
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  • 4
    ANTLR IDE
    An eclipse plugin for ANTLRv3 grammars. Support for ANTLR 3.0.x/3.1.x/3.2.x
    Downloads: 1 This Week
    Last Update:
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  • $300 Free Credits to Build on Google Cloud Icon
    $300 Free Credits to Build on Google Cloud

    New customers can spin up VMs, build with AI, and query data at no cost.

    Put your $300 in credit toward real workloads, then keep building with free monthly usage for 20+ products. No commitment and no charge until you upgrade.
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  • 5
    Nwicode CMS App Builder

    Nwicode CMS App Builder

    Mobile app Builder without coding

    The NWICODE CMS project, an open source mobile app Builder, was launched in beta testing in 2019. Since 2016, the platform has only been offered as a cloud-based solution for creating mobile applications. Our goal Not a month goes by without the launch of new platforms and mobile app designers on the market. All these platforms with DRAG&DROP and ready-made features. These solutions are very standardized and do not allow you to develop and control your application. We eliminate these limitations by providing open source code, so that every developer can easily and with a quick start to create mobile applications for any areas and categories of business.
    Downloads: 1 This Week
    Last Update:
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  • 6
    GenJar is a specialized Ant task that builds jar files based on class dependencies rather than simply the contents of a directory.
    Downloads: 2 This Week
    Last Update:
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  • 7
    Make in Java (jmk) is an application which is used to ensure that a set of files is in a consistent state. The application is based on the make utility which is part of most Unix systems, but is designed to support the task of writing platform independe
    Downloads: 2 This Week
    Last Update:
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  • 8
    Packin is a graphical Linux package creator wizard which compiles packages in the popular debian package format (.deb files). Packin creates complete debian packages within four easy steps. Advanced options and latest specifications supported.
    Downloads: 2 This Week
    Last Update:
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  • 9
    Prebop Preprocessor. Ant task runnable in or outside Eclipse allows you to maintain multiple Java, XML, etc. source variants from a single source base, e.g., multiple project SKUs built on multiple Eclipse versions, without complexity of VCS branch/merge
    Downloads: 2 This Week
    Last Update:
    See Project
  • Demo Series - Small Business Backup By Veeam Icon
    Demo Series - Small Business Backup By Veeam

    Learn how to protect your Microsoft 365 data, with simple, actionable tips today.

    Watch this on-demand demo series and learn how to protect your Microsoft 365 data with clear, simple, actionable steps that are easy to implement for businesses of all sizes.
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  • 10
    tool to test privates and use patters
    With dp4j.jar in your project classpath you directly access private members in your tests, w/o Reflection API boilerplate code; It also generates Design Patterns code and compile-time validates implementations. And Compiler & Co work for you again!
    Downloads: 2 This Week
    Last Update:
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  • 11
    Actor provides a web-enabled, self-service user interface to run your scripts. You run a desktop application to setup your scripts in Actor. Your users get a web site where they access your scripts in a controlled, fail-safe manner.
    Downloads: 3 This Week
    Last Update:
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  • 12
    An Ant task to generate a WAR file for a Java Web Start (JNLP) application. Allows for easy packaging and distribution of a Web Start application via a WAR file.
    Downloads: 3 This Week
    Last Update:
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  • 13
    Ant-based tool to migrate Java source files to GNU Autotools standards, making them compatible with usual "configure; make; make install" build mechanism.
    Downloads: 3 This Week
    Last Update:
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  • 14
    >>>>>>>>>>>>> Antelope has moved to http://antelope.tigris.org.
    Downloads: 3 This Week
    Last Update:
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  • 15
    Clirr is a tool that checks Java libraries for binary and source compatibility with older releases. The Clirr Ant task can break the build if it detects incompatible api changes, making it easy to prevent accidental introduction of compatibiliy issues.
    Leader badge
    Downloads: 3 This Week
    Last Update:
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  • 16
    From the XML definition of your database, DewDrop will generate clean and human-readable SQL DDL code for any supported target database. This means you can define your database just once in XML, and have it work for any database automatically.
    Downloads: 3 This Week
    Last Update:
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  • 17
    Set of Java libraries, mostly targeted to the J2EE environment and the Struts framework. Includes a Lookup Loader, a Task Scheduler, and a series of "extensions" to Struts.
    Downloads: 3 This Week
    Last Update:
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  • 18
    JPA-XJC is a JAXB 2.1 XJC plugin for annotating schema derived classes with Java persistence annotations. It does not generate code depending on libraries other than JPA 1.0 and does not introduce non-standard customization elements.
    Downloads: 3 This Week
    Last Update:
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  • 19
    JSTP is a light-weight template language for Java; a JSTP page is translated into a plain java class at build time and there is no runtime dependencies. JSTP borrows most syntax and semantics from JSP to steal IDE supports.
    Downloads: 3 This Week
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  • 20
    JarBuilder is a useful tool for Java programmers. It allows one to easily create jar files. JarBuilder is written in Java providing a nice Swing GUI.
    Downloads: 3 This Week
    Last Update:
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  • 21
    Javadoc2Help is a java based command line tool for converting the javadoc generated html output to Java Help, HTML Help(chm) and Oracle Help for Java(OHJ)
    Downloads: 3 This Week
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  • 22
    JsBuild is a simple and easy to use ANT-task for compressing and packaging JavaScript files. It aims to be a versatile tool for packaging javascript files.
    Downloads: 3 This Week
    Last Update:
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  • 23
    MakeRunScript creates a run script for your application. Even if you are developing on windows, you can make a run script for *nix and vice versa. If you've used the built-in java task before, you already know how to use 90% of MakeRunScript.
    Downloads: 3 This Week
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  • 24
    This is a maven plugin that permits to download an artifact from a remote repository and to copy it in a destination folder.
    Downloads: 3 This Week
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  • 25

    Miniloader

    replacement for Java Web Start

    Miniloader is intended as a replacement for Java Web Start (which is deprecated). It maintains a local cache of the Jars that comprise your project, downloaded from a site you control.
    Downloads: 3 This Week
    Last Update:
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