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.

  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
    Try Free
  • 99.99% Uptime for MySQL and PostgreSQL Databases Icon
    99.99% Uptime for MySQL and PostgreSQL Databases

    Sub-second maintenance. 2x read/write performance. Built-in vector search for AI apps.

    Cloud SQL Enterprise Plus delivers near-zero downtime with 35 days of point-in-time recovery. Supports MySQL, PostgreSQL, and SQL Server.
    Try Free
  • 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: 3,255,094 This Week
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  • 2
    JAGS is Just Another Gibbs Sampler. It is a program for the statistical analysis of Bayesian hierarchical models by Markov Chain Monte Carlo.
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    Downloads: 2,652 This Week
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  • 3
    Apktool

    Apktool

    A tool for reverse engineering Android apk files

    A tool for reverse engineering 3rd party, closed, binary Android apps. It can decode resources to nearly original form and rebuild them after making some modifications. It also makes working with an app easier because of the project like file structure and automation of some repetitive tasks like building apk, etc. It is NOT intended for piracy and other non-legal uses. It could be used for localizing, adding some features or support for custom platforms, analyzing applications and much more. The decode option on Apktool can be invoked either from d or decode. In order to run a rebuilt application. You must resign the application. Android documentation can help with this. As you probably know, Android apps utilize code and resources that are found on the Android OS itself. These are known as framework resources and Apktool relies on these to properly decode and build apks.
    Downloads: 289 This Week
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  • 4
    A home for additional useful tasks and types for Ant (http://ant.apache.org).
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    Downloads: 758 This Week
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  • $300 Free Credits for Your Google Cloud Projects Icon
    $300 Free Credits for Your Google Cloud Projects

    Start building on Google Cloud with $300 in free credits. No commitment, no credit card required until you're ready to scale.

    Launch your next project with $300 in free Google Cloud credits—no strings attached. Test, build, and deploy without risk. Use your credits across the entire Google Cloud platform to find what works best for your needs. After your credits are used, continue with always-free tier services. Only pay when you're ready to scale. Sign up in minutes and start exploring.
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  • 5
    Launch4j Executable Wrapper
    Cross-platform Java executable wrapper for creating lightweight Windows native EXEs. Provides advanced JRE search, application startup configuration and better user experience.
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    Downloads: 1,840 This Week
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  • 6
    capacitor

    capacitor

    Build cross-platform native progressive web apps for iOS and Android

    Capacitor is an open source native runtime for building Web Native apps. Create cross-platform iOS, Android, and Progressive Web Apps with JavaScript, HTML, and CSS. Capacitor’s native plugin APIs make it extremely easy to access and invoke common device functionality across multiple platforms. Build web-based applications that run equally well across iOS, Android, and as Progressive Web Apps. Access the full Native SDKs on each platform, and easily deploy to the App Stores (and the web). Add custom native functionality with a simple Plugin API, or use existing Cordova plugins with our compatibility layer. Capture images, save photos, and configure hardware parameters like saturation and color balance. Save and read documents, assets, and other content your users need to access via native file systems. Gather critical information about a user’s device location, such as latitude and longitude.
    Downloads: 24 This Week
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  • 7
    ProGuard Java Optimizer and Obfuscator

    ProGuard Java Optimizer and Obfuscator

    Java class file shrinker, optimizer, obfuscator, and preverifier

    ProGuard has moved to Github now: https://github.com/Guardsquare/proguard ProGuard is a free Java class file shrinker, optimizer, obfuscator, and preverifier. It detects and removes unused classes, fields, methods, and attributes. It optimizes bytecode and removes unused instructions. It renames the remaining classes, fields, and methods using short meaningless names. ProGuard is useful for making code more compact and more efficient, on the desktop, on tablets, on smartphones, and on embedded devices. It also makes code more difficult to reverse engineer.
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    Downloads: 83 This Week
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  • 8
    DEPRECATED > GNU ARM Eclipse

    DEPRECATED > GNU ARM Eclipse

    A family of Eclipse CDT extensions and tools for GNU ARM development.

    These plug-ins provide build and debug extensions for Eclipse CDT (C/C++ Development Tools) for 32/64-bits GNU ARM toolchains like GNU Tools for Embedded, Linaro, etc, ready to run STM32Fx project templates and full integration for advanced J-Link JTAG/SWD probes, including SWO tracing console and peripheral registers view.
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    Downloads: 80 This Week
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  • 9
    Bazel

    Bazel

    Fast, scalable, multi-language and extensible build system

    Build and test software of any size, quickly and reliably. Bazel only rebuilds what is necessary. With advanced local and distributed caching, optimized dependency analysis and parallel execution, you get fast and incremental builds. Build and test Java, C++, Android, iOS, Go and a wide variety of other language platforms. Bazel runs on Windows, macOS, and Linux. Bazel helps you scale your organization, codebase and Continuous Integration system. It handles codebases of any size, in multiple repositories or a huge monorepo. Easily add support for new languages and platforms with Bazel's familiar extension language. Share and re-use language rules written by the growing Bazel community. Bazel is the common build tool throughout Pinterest and has been instrumental in achieving fast, reproducible builds across our programming languages and platforms.
    Downloads: 14 This Week
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  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 10
    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: 45 This Week
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  • 11
    Druid is a GUI tool for database build and management. Users can add/change/delete DB objects (tables, fields, etc). Druid generates for you: SQL scripts, docs in XHTML, PDF, DocBook, etc; code in C, C++ & Java Beans even for JDO and support Castor & OJB
    Downloads: 48 This Week
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  • 12
    Command-line/Ant-task/embeddable text file preprocessor. Macros, flow control, expressions. Recursive directory processing. Extensible in Java to display data from any data sources (as database). Can generate complete homepages (tree of HTML-s, images, etc.)
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    Downloads: 67 This Week
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  • 13
    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: 26 This Week
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  • 14
    Keytool is an Eclipse plugin that maintains keystores and certificates. It allows you to create certificates and put them in a keystore. You can from Eclipse, open and inspect certificates that are stored as .cer, or in a given keystore.
    Downloads: 52 This Week
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  • 15
    Coefficient is a project-based collaboration platform deployable as either a J2EE or a Web application. It provides collaboration tools as hot deployable modules. It also provides a workflow engine to help guide projects through their development cycle.
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    Downloads: 108 This Week
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  • 16
    SDK Manager

    SDK Manager

    Manager for the Android SDK, wraps 'sdkmanager' and 'avdmanager'.

    Manager for the Android SDK, wraps 'sdkmanager', 'avdmanager' and 'emulator'. Packages: List, install, uninstall and update packages. Option to choose Channel. AVDs: Create, list and start AVDs. Many options to launch. After you check "Accept licenses" it will automatically accept them.
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    Downloads: 82 This Week
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  • 17
    Source Navigator NG is a source code analysis tool. With it, you can edit your source code, display relationships between classes and functions and members, and display call trees. You can navigate your source code and easily get to declarations or implementations of functions, variables and macros (commonly called "symbols") which helps you discovering and mapping unknown source code for enhancement or maintenance tasks.
    Downloads: 14 This Week
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  • 18
    A group of Java-based testing tools and JUnit extensions aimed at increasing quality awareness and ease of introduction of testing tools into the development cycle. Examples are Automated documentation, class hierarchy unit testing, and code coverage.
    Downloads: 39 This Week
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  • 19
    Boot

    Boot

    Build tooling for Clojure

    Boot is a Clojure build framework and ad-hoc Clojure script evaluator. Boot provides a runtime environment that includes all of the tools needed to build Clojure projects from scripts written in Clojure that run in the context of the project. Build processes for applications always end up being complex things. A simple web application, for instance, may require many integrations–asset pipelines, deployment to different environments, the compilation of multiple artifacts with different compilers, packaging, etc. The more complex the build process becomes, the more flexible the build tool needs to be. Static build specifications become less and less useful as the project moves toward completion. Being Lispers we know what to do: Lambda is the ultimate declarative. Instead of building the project based on a global configuration map, boot provides a runtime environment in which a build script written in Clojure can be evaluated. It is this script.
    Downloads: 2 This Week
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  • 20
    One-JAR(TM)
    One-JAR(TM) is a simple solution to a vexing problem in Java: how to distribute an application as a single jar-file, when it depends on multiple other jar-files. One-JAR uses a custom classloader to discover library jar files inside the main jar.
    Downloads: 9 This Week
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  • 21

    Java Application Framework For All

    JAFFA is a Rich Web 2.0 POJO based Event-Driven SOA framework

    An Enterprise Focused Java Framework For Rapid Application Development. JAFFA is a Java web application development stack, build around Web 2.0 technologies (ExtJS, DWR, JAWR) with an extensive service architecture, meta-data layer and rules engine (based on JBoss AOP and Drools). It provides an event driven SOA infrastructure with advanced scheduling and queue sub-systems
    Downloads: 48 This Week
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  • 22
    xmltask provides the facility for automatically editing XML files as part of an Ant build. Unlike the standard filter task provided with Ant, it is XML-sensitive, but doesn't require you to define XSLTs.
    Downloads: 12 This Week
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  • 23
    Compiere ERP + CRM Business Solution
    Compiere ERP+CRM is the leading open source ERP solution for Distribution, Retail, Manufacturing and Service industries. Compiere automates accounting, supply chain, inventory and sales orders. Compiere ERP is distributed under GPL V2 by Compiere, Inc.
    Downloads: 7 This Week
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  • 24
    JTestCase uses XML file to organize multi-testcase data and asserting conditions (action and expected result), and provides a set of easy-to-use methods to retrieve test cases out from XML, and asserts results against those expected ones in data file.
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    Downloads: 27 This Week
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  • 25
    Dropwizard

    Dropwizard

    Simple library for building production-ready RESTful web services

    Dropwizard is a Java framework for developing ops-friendly, high-performance, RESTful web services. Dropwizard pulls together stable, mature libraries from the Java ecosystem into a simple, light-weight package that lets you focus on getting things done. Dropwizard has out-of-the-box support for sophisticated configuration, application metrics, logging, operational tools, and much more, allowing you and your team to ship a production-quality web service in the shortest time possible. Dropwizard straddles the line between being a library and a framework. Its goal is to provide performant, reliable implementations of everything a production-ready web application needs. Because this functionality is extracted into a reusable library, your application remains lean and focused, reducing both time-to-market and maintenance burdens.
    Downloads: 1 This Week
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