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

  • Auth0 for AI Agents now in GA Icon
    Auth0 for AI Agents now in GA

    Ready to implement AI with confidence (without sacrificing security)?

    Connect your AI agents to apps and data more securely, give users control over the actions AI agents can perform and the data they can access, and enable human confirmation for critical agent actions.
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  • Automate contact and company data extraction Icon
    Automate contact and company data extraction

    Build lead generation pipelines that pull emails, phone numbers, and company details from directories, maps, social platforms. Full API access.

    Generate leads at scale without building or maintaining scrapers. Use 10,000+ ready-made tools that handle authentication, pagination, and anti-bot protection. Pull data from business directories, social profiles, and public sources, then export to your CRM or database via API. Schedule recurring extractions, enrich existing datasets, and integrate with your workflows.
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  • 1
    Niagara AX Community Modules
    A library of modules for the Tridium Niagara AX platform. AX programmers are encouraged to use and expand the library.
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    Downloads: 56 This Week
    Last Update:
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  • 2
    Action Arcade 2D j2me Engine Basic engine for j2me action arcade games, basic API for developing games. It will be a light engine. Methods and functions for load and paint graphics, background maps, basic sprites animations.
    Downloads: 0 This Week
    Last Update:
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  • 3
    AchitectHelper is an framework developed to make easy the development of simple 3-layered systems by providing generic layers for business and persistence. At this initial stage it helps IT students but its intented to help complex projects too.
    Downloads: 0 This Week
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  • 4
    ANFireme is the Simple Open Source Edition of AN Framework (ANFire) for PHP, JavaScript , and SQL. ANFireme is Designed and Implemented By Anas M. Naguib
    Downloads: 0 This Week
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  • Run applications fast and securely in a fully managed environment Icon
    Run applications fast and securely in a fully managed environment

    Cloud Run is a fully-managed compute platform that lets you run your code in a container directly on top of scalable infrastructure.

    Run frontend and backend services, batch jobs, deploy websites and applications, and queue processing workloads without the need to manage infrastructure.
    Try for free
  • 5
    A framework for abstract access to CM / SCM / SCCM / ALM systems (Bugzilla, ClearCase, Mantis, StarTeam, etc.). The project offers one SDK for Bugzilla, ClearCase, Mantis, StarTeam, etc.
    Downloads: 0 This Week
    Last Update:
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  • 6
    AceLogger is a new approach to logging frameworks. It provides multiple appenders, with it's own configuration (like formatters, filters and so on) and the possibility to target multiple sources to a given appender.
    Downloads: 0 This Week
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  • 7
    "Active Collections" is an API written by extending existing collection framework provided in JDK. This API will facilitate the consumer of a collection to handle events whenever the collection is modified.
    Downloads: 0 This Week
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  • 8
    As a player, you may want to play a game which can be customizable and enjoyable. As a game developer, you may want to develop a game more efficiently and enjoy the process of development. Please join in us and make the fertile game soil.
    Downloads: 0 This Week
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  • 9
    Adaptive Configuration Modules are components to build dynamic and flexible applications in which the application configuration can be based on runtime state.
    Downloads: 0 This Week
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  • Tricentis qTest for Unified Software Test Management Icon
    Tricentis qTest for Unified Software Test Management

    For software testing teams

    Scalable test management, operations, and analytics to centralize testing and orchestrate quality at speed, with visibility throughout the software development lifecycle.
    Learn More
  • 10
    Web, Wap & iMode Java J2SE/J2EE Lightweight Framework and Tools
    Downloads: 0 This Week
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  • 11
    Grid computing system.
    Downloads: 0 This Week
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  • 12
    Un sistema formato da server, client, linguaggio di script, controllo versione e distribuzione automatica. Tutto questo per creare applicazioni di tipo enterprise che lavorino principalmente con database.
    Downloads: 0 This Week
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  • 13
    Applacrity is a framework for the rapid development of web applications that provides Ruby on Rails like ease of use combined with the power of the Java and J2EE platform.
    Downloads: 0 This Week
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  • 14
    This project aims to provide a distributed meta modeling framework. Distributed meta modeling framework integrates different frameworks used in variant aspects of software development like Springframework, Struts, Hibernate and so on.
    Downloads: 0 This Week
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  • 15
    A framework for creating service-oriented representations of common websites, using them to create composite services, and providing AJAX methods to "mash-up" these services.
    Downloads: 0 This Week
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  • 16
    A fully customizable, extensible, scalable computational engine pluggable with various statistical and mathematical engines (R, Matlab, Octave, scilab...) The main focus and datatype considered is timeseries: the project contains also a portable and effi
    Downloads: 0 This Week
    Last Update:
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  • 17
    Highly dynamic application generator for creating Eclipse RCPs.
    Downloads: 0 This Week
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  • 18
    BeanValidator is a framework for declarative validation of Java(TM) Beans and EJB3 POJOs that integrates can be used standalone or together with JSF and and JBoss(TM) Seam.
    Downloads: 0 This Week
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  • 19
    Wireless telecommunication framework based on Jabber protocol, targeting JME (known before as J2ME) enabled devices.
    Downloads: 0 This Week
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  • 20
    Bimbo is a Java web framework to construct web applications using only annotated POJO's. The idea behind it is that a developer should not bother about look and feel of an application, but to let the framework handle all these details.
    Downloads: 0 This Week
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  • 21
    Basic functionality of this project is to provide the framework for coping the data from one object to another using XML configuration. It will reduce the developing time to develop the conversion method. It will develope using in Java , XML technology.
    Downloads: 0 This Week
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  • 22
    CEManTIKA (Contextual Elements Modeling and Management through Incremental Knowledge Acquisition) is a framework to support context modeling and Context-Sensitive System design, in a generic, domain-independent way.
    Downloads: 0 This Week
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  • 23
    CardShark is a software package that includes a utility for creating and organizing playing cards and an interactive environment for playing games with those cards via the internet.
    Downloads: 0 This Week
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  • 24
    A Swing-based High Level MVC Framework with more component for standard MVC and many others (validation, only number/currency edit, required/not required fields etc)
    Downloads: 0 This Week
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  • 25
    The Carrera Framework is a new JEE web framework, taking from some of the ideas of JSF, Tapestry (4 and 5), etc and merging them into a new flavor of a framework.
    Downloads: 0 This Week
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