Browse free open source Java Protocols and projects below. Use the toggles on the left to filter open source Java Protocols 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.
    Start building today
  • Lightspeed golf course management software Icon
    Lightspeed golf course management software

    Lightspeed Golf is all-in-one golf course management software to help courses simplify operations, drive revenue and deliver amazing golf experiences.

    From tee sheet management, point of sale and payment processing to marketing, automation, reporting and more—Lightspeed is built for the pro shop, restaurant, back office, beverage cart and beyond.
    Learn More
  • 1
    ZK - Simply Ajax and Mobile
    ZK is an open-source Java framework for building modern web and mobile applications. It enables developers to create rich, interactive UIs using only Java — no JavaScript required. With 200+ Ajax-powered components, event-driven architecture, and support for popular technologies like Spring, Java EE, and JSP/JSF, ZK makes it simple to deliver powerful and user-friendly web applications.
    Downloads: 12 This Week
    Last Update:
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  • 2
    HelloNzb

    HelloNzb

    The Binary Usenet Tool

    With HelloNzb you can download (binary) files from Usenet servers via NZB index files. The software is based on Java and can thus run on many platforms (tested on Windows and Linux). Automatic archive verification via PAR2, automatic RAR archive extraction, built-in yEnc- and UU-decoding. Portable, no installation required.
    Downloads: 12 This Week
    Last Update:
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  • 3
    mendelson AS4

    mendelson AS4

    AS4 Solution for ENTSOG, e-SENS, ebMS, PEPPOL, ICS2, BDEW

    mendelson AS4 is a free JAVA-based open source AS4 solution. Contains a monitoring- and configuration GUI (SWING), supports PUSH and PULL messages, ENTSOG AS4, e-SENS AS4, ebMS AS4, BDEW AS4, PEPPOL AS4, ICS2 AS4, signatures (SOAP, payload), selectable profile per trading partner, encryption (SOAP, payload), UserNameToken, TLS, pluggable into any servlet container, trading partner management, compression, certificate management
    Downloads: 2 This Week
    Last Update:
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  • 4
    LibreTunes is an open-source multi-scrobbler, scrobbling the music you play with iTunes to up to 3 AudioScrobbler servers. By default it supports last.fm and libre.fm, but you are free to use any servers you want.
    Downloads: 1 This Week
    Last Update:
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  • D&B Hoovers is Your Sales Accelerator Icon
    D&B Hoovers is Your Sales Accelerator

    For sales teams that want to accelerate B2B sales with better data

    Speed up sales prospecting with the rich audience targeting capabilities of D&B Hoovers so you can spend more sales time closing.
    Learn More
  • 5
    agorum core is the Document Management System (DMS) with the drive-interface. It allows access to the stored documents with a network share. It offers a wide range of DMS-Functionality:Search,Versioning,Archive,Workflow,... See http://www.agorum.com
    Downloads: 1 This Week
    Last Update:
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  • 6
    Asterisk PBX Integration Zimlet is an Extension for Zimbra Collaboration Suite. The Zimlet does Interface with the Asterisk Manager Interface to integrate with Asterisk PBX. The main focus is dial-on-click for Phone numbers inside Contacts and Emails.
    Downloads: 0 This Week
    Last Update:
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  • 7

    CTCFramework

    A Collaborative Task Controlling Framework

    A RESTful framework to control collaborative tasks in existing web applications!
    Downloads: 0 This Week
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  • 8
    The CampusSource Engine Integration Platform (CSE-IP) supports the composition of an integrated information managment in heterogeneous IT environments of educational institutions. It realises a process-oriented link-up of campus information systems.
    Downloads: 0 This Week
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  • 9
    It is a lightweight API to invoke web services (RMI, CORBA, WebService (SOAP), XML-RPC, EJB, Hessian, Burlap, REST, ...), how simple Java Object calls. You can integrate Crispy in a Service Oriented Architecture (SOA) or in a Rich Client Platform (RCP).
    Downloads: 0 This Week
    Last Update:
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  • eProcurement Software Icon
    eProcurement Software

    Enterprises and companies seeking a solution to manage all their procurement operations and processes

    eBuyerAssist by Eyvo is a cloud-based procurement solution designed for businesses of all sizes and industries. Fully modular and scalable, it streamlines the entire procurement lifecycle—from requisition to fulfillment. The platform includes powerful tools for strategic sourcing, supplier management, warehouse operations, and contract oversight. Additional modules cover purchase orders, approval workflows, inventory and asset management, customer orders, budget control, cost accounting, invoice matching, vendor credit checks, and risk analysis. eBuyerAssist centralizes all procurement functions into a single, easy-to-use system—improving visibility, control, and efficiency across your organization. Whether you're aiming to reduce costs, enhance compliance, or align procurement with broader business goals, eBuyerAssist helps you get there faster, smarter, and with measurable results.
    Learn More
  • 10
    Guberno is a versatile framework that allows web based administration of any application you want.
    Downloads: 0 This Week
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  • 11
    A Customer Relationship Management (CRM) webapplication that uses OASIS CIQ standards for administrating organisations, persons, memberships, as well as contact information.
    Downloads: 0 This Week
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  • 12
    JNewsDruid is a binary newsgroups fetcher (newsreader) written in Java. Its goal should be making the handling of alt.binary groups easier. It will support multiple servers and all important binary standards for the usenet soon. It makes use of mysql.
    Downloads: 0 This Week
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  • 13
    JPackrat is a client for fetching binaries in the usenet.
    Downloads: 0 This Week
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  • 14

    Lanbahn

    Controlling Model Railroad via Networks

    Controlling Model Railroad via Networks "Lanbahn" Concepts - intelligent end devices - all with a network, wlan or other sophisticated interface. - can be operated without a central station - no complex binary protocols - communications via multicast UDP messages - decoders can advertise their capabilities via zeroconf/avahi/bonjour protocol. - raspberry pi as one hardware platform - tinkerforge IO bricklets for turnout and signal control
    Downloads: 0 This Week
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  • 15
    MyRSS is a web based Ajax RSS reader. The web application allows the user to create a personal collection of RSS feeds which will be parsed regularly for quick overview.
    Downloads: 0 This Week
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  • 16
    PlanYourProject is an Open Source application providing users with an easy way to plan their own project. PYP is using the AJAX technology und should be compatible with all common standards. (File Formats, Interfaces for other APIs)
    Downloads: 0 This Week
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  • 17
    Tiny Java RSS / RDF / Atom Aggregator for desktop. Using Thinlet as interface, it's goal is to provide a cross-platform and lightweight feeder. Skins, antialiasing and multi-language support, because news reading needs to be the most pleasant possible!
    Downloads: 0 This Week
    Last Update:
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  • 18
    ToaoT
    The one and only Twitter client. Build as Eclipse RCP, based on the JTwitter-Impl for Twitter. In a later release, we will use our own web service link.
    Downloads: 0 This Week
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  • 19
    Ein kleines Tool um bei den von O2 ausgelieferten Zyxel P-2602hw Router schnell relevante Daten auszulesen oder Einstellungen zu ändern.
    Downloads: 0 This Week
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  • 20
    Java Growl Library - Provides a Java based library to the Growl service.
    Downloads: 0 This Week
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  • 21
    smsnuke are PAY and SMS Modules for PHP Nuke and vkpMx CMS Systems. APS's for Java ( J2EE and Application-Server's) and PHP / HTML
    Downloads: 0 This Week
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  • 22
    Feed'n Read is an open Java based newsfeed reader. It is powered by the Sun ROME syndication framework and supports RSS 0.90, 0.91, 0.92, 0.93, 0.94, 1.0, 2.0, ATOM 0.3 and 1.0). Intuitive, fast and responsive ui using eclipse technologies (JFace / SWT)
    Downloads: 0 This Week
    Last Update:
    See Project
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