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

  • 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.
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  • Free and Open Source HR Software Icon
    Free and Open Source HR Software

    OrangeHRM provides a world-class HRIS experience and offers everything you and your team need to be that HR hero you know that you are.

    Give your HR team the tools they need to streamline administrative tasks, support employees, and make informed decisions with the OrangeHRM free and open source HR software.
    Learn More
  • 1
    Apache Guacamole

    Apache Guacamole

    HTML5 Clientless Remote Desktop

    Apache Guacamole is a clientless remote desktop gateway. It supports standard protocols like VNC, RDP, and SSH. We call it clientless because no plugins or client software are required. Thanks to HTML5, once Guacamole is installed on a server, all you need to access your desktops is a web browser.
    Downloads: 18 This Week
    Last Update:
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  • 2
    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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  • 3
    Zuul

    Zuul

    Gateway service providing dynamic routing, monitoring and more

    Zuul is an L7 application gateway that offers many capabilities, including dynamic routing, monitoring, security, resiliency and more. It is used in the backend of the Netflix streaming service as a front door for all requests from devices and web sites. Zuul is ideal for cases like this where API traffic volume and diversity can become overwhelming and cause production issues to arise suddenly and without warning. Zuul has a broad range of filters that enable it to perform multiple functions quickly and apply functionality to services like Netflix. These functions include security authentication, dynamic routing, stress testing, load shedding and more.
    Downloads: 1 This Week
    Last Update:
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  • 4
    As the name implies (Javascript RRD), javascriptRRD is a javascript library for reading Round Robin Database (RRD) archives (produced by rrdtool) using AJAX-like techniques. The library also provides graphing classes leveraging the Flot library.
    Downloads: 2 This Week
    Last Update:
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  • Thinkific is a leading platform for creating, marketing, and selling courses, digital products, communities and learning experiences. Icon
    Thinkific is a leading platform for creating, marketing, and selling courses, digital products, communities and learning experiences.

    For professionals or companies that want a powerful platform to create, market, and sell their own online courses

    Create online courses, digital products, and communities that actually sell. An all-in-one solution for building your dream learning business.
    Learn More
  • 5
    awes-info

    awes-info

    Displays summary information about servers running in AWES

    Displays summary information about servers running in Ascoos Web Extended Studio (AWES). This module requires AWES 24.1.1 and higher due to being a new feature. This version is just before its release, as the latest debuggings and improvements planned for this release are being made.
    Downloads: 4 This Week
    Last Update:
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  • 6
    Gateway Anti-Virus allows applications across the enterprise to check files for viruses by providing a SOAP-based virus scanning web service. The system uses clamav for virus definitions and detection.
    Downloads: 2 This Week
    Last Update:
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  • 7
    WebLOAD
    This project is intended for ISVs, SIs and software developers who need to integrate load generation engine into their applications. For enterprise load and performance testing initiatives, RadView offers WebLOAD Professional, a complete solution for creating, executing and analyzing the performance of web applications under load.
    Downloads: 3 This Week
    Last Update:
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  • 8
    MentDB Projects

    MentDB Projects

    Generalized Interoperability and Strong AI

    MentDB is an open-source platform driving research into next-generation AI and universal data exchange. Our architecture is built around the revolutionary Mentalese Query Language (MQL). MentDB Weak (Generalized Interoperability): A unified data layer enabling seamless data exchange and application integration (SOA, ETL, Data Quality). We eliminate data silos through a single, generalized data language. MentDB Strong (Strong AI / AGI): The framework for exploring and building Machine Consciousness, free will, and advanced ethical reasoning systems. Based on new-generation AI algorithms.
    Downloads: 1 This Week
    Last Update:
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  • 9

    WendzelNNTPd

    A free Usenet server with SQL backend and RBAC.

    The WendzelNNTPd is a IPv6-ready NNTP usenet-server with the main goal to be as easy to use as possible. It is portable (Linux/*BSD/*nix), supports AUTHINFO authentication, contains ACL as well as role based ACL and supports invisible newsgroups. It currently supports MySQL and SQLite backends.
    Downloads: 1 This Week
    Last Update:
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  • The most trusted software in construction Icon
    The most trusted software in construction

    HCSS is the gold standard software solution for winning, planning, and managing construction projects by connecting the office to the field.

    HCSS provides easy-to-use software built for construction companies that want to win more work, work smarter, and boost profits. For nearly 40 years, we've helped heavy civil contractors, infrastructure builders, and utility companies improve operations, from estimating and project management to field tracking, equipment maintenance, and safety. Tools like HeavyBid, HeavyJob, and HCSS Safety are built for the field and designed to work together, giving your team real-time visibility, tighter cost control, and better job outcomes. With 45+ accounting integrations and customizable APIs, HCSS fits seamlessly into your tech stack. We regularly update our software based on feedback from real crews, ensuring it fits the way your team works. Backed by award-winning 24/7/365 support and a proven implementation process, HCSS helps reduce risk, cut inefficiencies, and deliver fast ROI. If you're ready to grow your business and gain a competitive edge, HCSS is the partner that gets you there.
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  • 10
    Tpl makes it easy to serialize your C data using just a handful of API functions. The data is stored in its native binary form for maximum efficiency. C, Perl and XML supported. Data is portable across CPU types and OS's from Unix to Mac to Windows.
    Downloads: 1 This Week
    Last Update:
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  • 11
    A PHP Client Library for beanstalkd. BeanStalk allows PHP developers to make use of the beanstalkd in-memory workqueue server (http://xph.us/software/beanstalkd).
    Downloads: 0 This Week
    Last Update:
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  • 12
    Af-Arch is an Open Source N-tier framework to build distribuited applications. Its license schema allows Open Source and commercial (closed source) applications. This is the foundation to build an new set of applications in a fast and reliable way.
    Downloads: 0 This Week
    Last Update:
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  • 13
    Ajax Portal (WebOS and Portal)
    Ajax Portal (WebOS & Enterprise Portal). Ajax Portal is open source cross-platform cross-browser Web 2.0 / Web 3.0 solution which is based on a new architecture of WebOS and Enterprise Portals. Our Enterprise Portal can work as Mashup (WOA approach). The portal provides Portlet/Portal API, Services. It's posible to use the Decoration module of the portal as a part of the standard Web application (Web 2.0 / Web 3.0 application). Open Source allows you to try and evaluate our Web 2.0 / Web 3.0 Enterprise Ajax Portal for free.
    Downloads: 0 This Week
    Last Update:
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  • 14
    Software originally realised by the Grid research project Akogrimo (http:/www.mobilegrids.org) working on integrating network capabilities with Grid Middleware. Selected topics are Context Management, SIP/SOAP integration, Semantic workflows, ...
    Downloads: 0 This Week
    Last Update:
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  • 15
    AlchemySOAP is a C++ SOAP 1.1/1.2 protocol stack, licensed under the LGPL. It is fast, standards compliant, includes many automated unit/interop tests and other notable features (optional SSL and DOM support, etc.). AlchemySOAP is a fork of the EasySoap+
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Aria2Web
    Aria2Web is a PHP- and Javascript-based application that allows you to control the excellent and lightweight "aria2" over the web. That way you can use it as a download manager.
    Downloads: 0 This Week
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  • 17
    Artica Statistics Appliance for Squid

    Artica Statistics Appliance for Squid

    Global Management console for manage multiple Squid proxys

    Artica Statistics Appliance for Squid is a set of modules that allows you to enable Webfiltering, statistics and manage several Squid proxy from an unique Web management console. With this project you will be able to install TinyProxy act has the client and the Web statistics Appliance act has the central server
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    A C/C++ based client and server implementation of the OGSA Basic Execution Service, used to provide a Web Services interface to distributed resource managers such as Platform LSF and PBS/PBS Pro. The SOAP stack is provided by the gSOAP toolkit.
    Downloads: 0 This Week
    Last Update:
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  • 19
    Bionanny is a tool for Web Services providers. It allows to monitor other Web Services. It can intercept requests incoming from clients, pass it to the destination Web Service and log number of requests and elapsed time spend by services.
    Downloads: 0 This Week
    Last Update:
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  • 20
    Final University project that will deliver a RESTful purchasing Web Service on a vLAMP architecture. Charlotte was the original web service that saved the bacon of the iconic pig: Wilbur.
    Downloads: 0 This Week
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  • 21
    The Citizen Privacy Service is an asynchronous component using artificial intelligence capabilities including DL decidability and first order logic provenance that provide policy decision and policy enforcement points based on the US Privacy Act of 1974.
    Downloads: 0 This Week
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  • 22
    Cloud Export is a tool to automatically extract your data from web applications and save it to your local file system for backup purposes, but more extensive than Google Takeout. Plans are based on http://www.dataliberation.org.
    Downloads: 0 This Week
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  • 23
    CyBerFuN xBTiT
    CyBerFuN xBTiT by cybernet2u / I only install hacks and maintain them / all the credits for the core source goes to : http://www.btiteam.org new files here ->https://github.com/cybyd/cybyd
    Downloads: 0 This Week
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  • 24
    A software to store, (PUT) meteorological data from complex free form text format to databases and and GET stored (and already loaded) data from databases using OPeNDAP protocol. Written using Java6, XSD, and C++. It support OPeNDAP clients thanks to
    Downloads: 0 This Week
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  • 25
    This project aims to replace the multimedia server application for the Gateway, GoVideo, and NetGear DVD players & set-top devices. The new server software aims to be more organized and support a wider variety of formats than Digital 5's original.
    Downloads: 0 This Week
    Last Update:
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