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.

  • 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.
    Start Free
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 1
    Clutch is a Java framework for distributed computing using mobile agents. Built using ProActive [http://www-sop.inria.fr/sloop/javall/], it is meant to be a scalable toolkit that can be used to distribute computation across an arbitrary number of nodes.
    Downloads: 0 This Week
    Last Update:
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  • 2
    Etch is a cross-platform, language- and transport-independent framework for building and consuming network services. With Etch, service development and consumption becomes no more difficult than library development and consumption.
    Downloads: 0 This Week
    Last Update:
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  • 3
    JRemoteFS is a lite, generic framework for access to remote filesystem integration into your Java application. Currently FTP and SFTP are supported. JRemoteFS was developed for JAlbum and now released as a seperate package. For more info, see http://joos
    Downloads: 0 This Week
    Last Update:
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  • 4
    sandboss is a messaging framework generator that creates complete communications, persistency, UI forms, configuration management, and runtime control infrastructure from struct and node declarations. Full generator support in the dependency-aware build
    Downloads: 0 This Week
    Last Update:
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  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
    Try Retool free
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