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.

  • Stop Storing Third-Party Tokens in Your Database Icon
    Stop Storing Third-Party Tokens in Your Database

    Auth0 Token Vault handles secure token storage, exchange, and refresh for external providers so you don't have to build it yourself.

    Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.
    Try Auth0 for Free
  • Stop Cyber Threats with VM-Series Next-Gen Firewall on Azure Icon
    Stop Cyber Threats with VM-Series Next-Gen Firewall on Azure

    Native application identity and user-based security for your Azure cloud

    Gain integrated visibility across all traffic in a single pass. Deploy Palo Alto Networks VM-Series to determine application identity and content while automating security policy updates via rich APIs.
    Get a free trial
  • 1
    The Byte Code Engineering Library (formerly known as JavaClass) is intended to give users a convenient possibility to analyze, create, and manipulate (binary) Java class files . Classes are represented by updatable objects.
    Downloads: 0 This Week
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  • 2
    The Byte Code Engineering Library (formerly known as JavaClass) is intended to give users a convenient possibility to analyze, create, and manipulate (binary) Java class files . Classes are represented by updatable objects.
    Downloads: 0 This Week
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  • 3
    C Tasks consists of Ant tasks that invoke C/C++ development tools. The tasks are based on the very general CC task from Ant Contrib project on SourceForge. A framework for applying XSL transforms to buildfiles to target different systems is provided.
    Downloads: 0 This Week
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  • 4
    The C'it (Continuous Integration and Testing) project (say "see it!") is a set of services to increase the perception of the evolving software, letting you easily implement continuous integration at its best.
    Downloads: 0 This Week
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  • Build Agents and Models on One Platform Icon
    Build Agents and Models on One Platform

    Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.

    Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
    Try It Free
  • 5
    CC-XJC is a JAXB 2.0 XJC plugin for adding a copy constructor to schema derived classes.
    Downloads: 0 This Week
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  • 6
    CCPeek monitors the build status and JUnit test result of cruise control projects.
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  • 7
    CCSentry takes the pain out of CruiseControl build-failure notification. This application provides user-friendly notifications without getting in the way. It is intended to be very configurable so as not to spam developers with irrelevant events.
    Downloads: 0 This Week
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  • 8
    This project attemps to integrate the Eclipse CDT C/C++ IDE and the Splint static checker.
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  • 9
    CMS Deploy is an Apache Ant Task to submit files and templates to Vignette CMS
    Downloads: 0 This Week
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  • Go from Code to Production URL in Seconds Icon
    Go from Code to Production URL in Seconds

    Cloud Run deploys apps in any language instantly. Scales to zero. Pay only when code runs.

    Skip the Kubernetes configs. Cloud Run handles HTTPS, scaling, and infrastructure automatically. Two million requests free per month.
    Try it free
  • 10
    **NOTE**: As of 2017-Sep-14, this project was **moved to [github](https://github.com/15knots/cmakeed)**. Please file any issues there. ----- Eclipse plug-in for editing CMake files such as CMakeLists.txt. Provides syntax coloring, CMake command content assist, and the CMake command reference incorporated into the Eclipse help system. Requires Java 5 or higher and Eclipse 3.4 or higher.
    Downloads: 0 This Week
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  • 11
    CPMake. Cross platform make utility
    Downloads: 0 This Week
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  • 12
    A framework for creating java GUI application by defining GML(Graphics Markup Language) only drag and drop GUI component in CS3 software. After define GML this software can generate source code automatically comply with the framework(View,Modal,Controlle
    Downloads: 0 This Week
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  • 13
    Cadence is a collection of frameworks for accelerating J2EE. J2EE is complex and time consuming. Cadence makes building enterprise J2EE systems much easier by providing tools and frameworks to realize faster ROI. J2EE Nirvana indeed !!
    Downloads: 0 This Week
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  • 14
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  • 15
    Automatically use your Ant-defined classpaths within your Eclipse projects.
    Downloads: 0 This Week
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  • 16
    The aim of Capradoc si to provide developers (mainly web developers) a tool for the autodocumentation of project similar to javadoc but usable with JSP, HTML , ASP.. and other file formats.
    Downloads: 0 This Week
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  • 17
    This project is a modeler tool of components that supports the Catalysis Process (www.catalysis.org). It will support the three first phasis of the process Catalysis: Business Model, Sistem Specification and Component Design.
    Downloads: 0 This Week
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  • 18
    Caterpillar is a build management software package. It’s primary purpose is to allow developers and development groups the ability to easily build and schedule builds of project code via a web interface.
    Downloads: 0 This Week
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  • 19
    Cathcart is a collection of Apache Ant tasks and a Maven plugin for checking trends in software metrics (generated by junit, jmeter, clover, pmd, findbugs, cobertura etc). Use Cathcart to ensure continuous improvement in software quality.
    Downloads: 0 This Week
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  • 20
    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.
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  • 21
    Chalk Tools is a set of utilities and tools usefull to Java Developers.
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  • 22
    ChatGPT Java API

    ChatGPT Java API

    Java SDK for seamless integration with ChatGPT APIs

    ChatGPT-Java is a Java SDK created by PlexPt that offers a convenient, out-of-the-box integration with the OpenAI ChatGPT API (including models like GPT-4o, GPT-5) for Java applications. The library supports chat completions, token counting, function calls, streaming responses, proxy configuration, custom API host, and integration with frameworks such as Spring (via SseEmitter). It abstracts the HTTP interaction and JSON parsing into simple Java objects and builders while handling details like token usage and model selection. It is published to Maven Central under the group com.github.plexpt, e.g., version 5.0.1. The SDK is designed for developers building chatbots, conversational assistants, and integrations in Java or Spring ecosystems. Being open source under MIT, it provides transparency and community contributions.
    Downloads: 0 This Week
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  • 23
    An Ant task for changing the ownership of files on Unix.
    Downloads: 0 This Week
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  • 24
    Chronogears is an interactive, sprite-based animation system written in 100% Java. Chronogears makes used of Graphics 2D technology. The ultimate goal of Chronogears is to allow non-programmer to create high performance, interactive, complex video games
    Downloads: 0 This Week
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  • 25
    Java class file encryption. Class Encrypt is a program that can encrypt a developer's class files and package them into an executable jar file for deployment. The program uses modules for implementing different encryptions.
    Downloads: 0 This Week
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