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

  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
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  • The All-in-One Commerce Platform for Businesses - Shopify Icon
    The All-in-One Commerce Platform for Businesses - Shopify

    Shopify offers plans for anyone that wants to sell products online and build an ecommerce store, small to mid-sized businesses as well as enterprise

    Shopify is a leading all-in-one commerce platform that enables businesses to start, build, and grow their online and physical stores. It offers tools to create customized websites, manage inventory, process payments, and sell across multiple channels including online, in-person, wholesale, and global markets. The platform includes integrated marketing tools, analytics, and customer engagement features to help merchants reach and retain customers. Shopify supports thousands of third-party apps and offers developer-friendly APIs for custom solutions. With world-class checkout technology, Shopify powers over 150 million high-intent shoppers worldwide. Its reliable, scalable infrastructure ensures fast performance and seamless operations at any business size.
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  • 1
    ODM

    ODM

    Device Manager for ONVIF-based Network video devices.

    ODM is a ONVIF protocol implementation of Network Video Client (NVC) to manage Network Video Transmitters (NVT), Network Video Storage (NVS) and Network Video Analytics (NVA) devices. Implements Discovery, Device, Media, Imaging, Analytics, Events and PTZ services. Write in C# and uses ffmpeg for media decoding.
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    Downloads: 7,409 This Week
    Last Update:
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  • 2
    Vienna

    Vienna

    An open source Mac OSX RSS reader with support for RSS/Atom feeds

    Vienna is an open source Mac OSX RSS reader with support for RSS/Atom feeds, article storage and management via a SQLite database, written in Objective-C and Cocoa. Feeds can be accessed directly, or through a syncing service supporting the Open Reader API, like BazQux.com, FeedHQ.org, InoReader.com or TheOldReader.com. Development now happens on GitHub: https://github.com/ViennaRSS/vienna-rss
    Downloads: 81 This Week
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  • 3
    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: 44 This Week
    Last Update:
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  • 4
    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: 15 This Week
    Last Update:
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  • Simple, Secure Domain Registration Icon
    Simple, Secure Domain Registration

    Get your domain at wholesale price. Cloudflare offers simple, secure registration with no markups, plus free DNS, CDN, and SSL integration.

    Register or renew your domain and pay only what we pay. No markups, hidden fees, or surprise add-ons. Choose from over 400 TLDs (.com, .ai, .dev). Every domain is integrated with Cloudflare's industry-leading DNS, CDN, and free SSL to make your site faster and more secure. Simple, secure, at-cost domain registration.
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  • 5
    IIPImage

    IIPImage

    IIPImage is an advanced high-performance image server and client

    IIPImage is a high performance image server and client for viewing, navigating and zooming within high resolution images on the internet. Images in TIFF or JPEG2000 format are efficiently streamed by the server to a choice of clients that can be embedded within a web page.
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    Downloads: 15 This Week
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  • 6
    Portable and very simple C API functions to write a soap client/server in c.
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    Downloads: 58 This Week
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  • 7

    NZBGet

    Efficient Usenet Downloader

    NZBGet is a usenet downloader, written in C++ and designed with performance in mind to achieve maximum download speed by using very little system resources. It supports all platforms including Windows, Mac, Linux and works on all devices including PC, NAS, WLAN routers and media players.
    Downloads: 10 This Week
    Last Update:
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  • 8
    RSS Builder is an easy to use program for creating and publishing news feeds and podcasts. You can use local RSS files, but there is also an option to edit the RSS feeds on your web site without keeping a local copy.
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    Downloads: 62 This Week
    Last Update:
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  • 9
    CalemEAM is an open source enterprise asset management (EAM/CMMS) suite, featuring Web 2.0 Ajax client with drag-and-drop customization and a PHP based server. This free CMMS/EAM project can be used for industrial, facility and IT asset management.
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    Downloads: 17 This Week
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  • Enterprise and Small Business CRM Solution | Clear C2 C2CRM Icon
    Enterprise and Small Business CRM Solution | Clear C2 C2CRM

    Voted Best CRM System with Top Ranked Customer Support. CRM Management includes Sales, Marketing, Relationship Management, and Help Desk.

    C2CRM consists of four modules that integrate to provide a comprehensive CRM solution: Relationship Management, Sales Automation, Marketing Automation, and Customer Service. Only buy what each user needs.
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  • 10
    iTorrent allows you to download BitTorrent podcasts from iTunes. It transforms BitTorrent podcasts so that you can update them just like any other podcast in iTunes.
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    Downloads: 17 This Week
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  • 11
    Easy Feed Editor
    ACTIVE DEVELOPMENT ENDED IN 2011. Use Easy Feed Editor to create your own feed. Easy Feed Editor supports both RSS and ATOM.
    Downloads: 8 This Week
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  • 12
    SoapUI
    The SoapUI download has moved to https://www.soapui.org/downloads/soapui/source-forge.html With more than 9 million downloads SoapUI is the de-facto standard for REST and SOAP API functional, security and performance testing.
    Downloads: 4 This Week
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  • 13
    RSS Reader is a mobile J2ME (Java ME) app. that runs on Java enabled phones. User can store multiple RSS/ATOM feeds as bookmarks. Can import from OPLM file or HTML file with links. Can read offline. MIDP 2.0/some MIDP 1.0. Specify which MIDP w/issue
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    Downloads: 11 This Week
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  • 14
    The Shared desktop ontologies provide RDF vocabularies for the Semantic Desktop. This includes basic ontologies like RDF and RDFS and all the Nepomuk ontologies like NRL, NIE, or NFO which are also maintained and developed in this open-source project
    Downloads: 9 This Week
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  • 15
    FreeRDP is a free remote desktop protocol client that implements RDP following the documentation provided under the Microsoft Open Specification Promise.
    Downloads: 3 This Week
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  • 16
    Jitterbit is an open source integration tool that delivers a quick and simple way to design, configure, test, and deploy integration solutions. It supports many document types and protocols: XML, web services, database, LDAP, text, FTP, HTTP(S), file
    Downloads: 3 This Week
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  • 17
    wsdlpull is an efficient and powerful command line utility for dynamic inspection and invocation of WSDL web services.It provides a C++ library with dynamic WSDL invocation API,WSDL parser,Schema parser and Validator and an xmlpull Parser/Serializer.
    Downloads: 5 This Week
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  • 18
    WinS3fs is a filesystem for Windows allowing access to Amazon S3 Storage. It implements a local virtual SMB server \\s3 to allow access to Amazon S3 buckets
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    Downloads: 5 This Week
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  • 19
    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: 2 This Week
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  • 20
    Digital Learning Sciences (DLS) is a mission-centered, not-for-profit organization dedicated to improving learning through the use of digital content and tools.
    Downloads: 2 This Week
    Last Update:
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  • 21
    Open Web Studio
    Start Building Rich Internet Applications Rapidly. OpenWebStudio (OWS) is a robust tool for building data bound forms, modules, utilities and more. Anyone, anywhere can create bullet proof solutions quickly.
    Downloads: 1 This Week
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  • 22
    Car Sales Management System Codeigniter

    Car Sales Management System Codeigniter

    Car Sales Management System, Vehicle Sales Management in Codeigniter

    Vehicle Sales Management System Built on Codeigniter 2.x Framework Features : Front End with Vehicles Added from Back-end with details Back-end login system for admins, employees Different Controlling for Admin and Employee New Employee Adding for doing Sales , Adding new vehicles Admin Features : # Add, Edit , Delete almost anything(Including new users), Sell vehicles, See customer Details Employee Features : # Add vehicles only and Sell them to new clients with their details ------------------------------------------------------------------------- Others : Used CodeIgniter Active record for DB query, Basic Parser use of codeigniter, uses cool template for backend with a lot of effects, form validation with codeigniter Database is included in the folder. Uses Datatables with sorting , filtering , and date to date range for getting result Change DB & URL as the video Shows localhost. Contact : dranger2011@gmail.com for any help. For Pro version Contact me.
    Downloads: 2 This Week
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  • 23
    Fronsetia

    Fronsetia

    A web application for testing webservices

    Fronsetia (Free Online Service Testing Application) is a Java web application that allows testing webservices (REST and SOAP). No end-user installations required, just deploy the application on your server and pass the link so that users can use their usual browsers to access Fronsetia. You can think of Fronsetia as a simple version of SoapUI on the web, or a simple and free and open-source version of the "wls_utc" utility. See the project homepage https://fronsetia.sourceforge.io and the project Wiki in the menu above.
    Downloads: 2 This Week
    Last Update:
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  • 24
    A P2P overlay construction toolkit, which supports routing algorithm researchers in addition to application developers. It provides multiple routing (DHT) algorithms such as Chord, Kademlia, Koorde, Pastry and Tapestry, and a distributed environment emu
    Downloads: 2 This Week
    Last Update:
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  • 25
    POPsearch is a desktop search engine that's designed to help you find information on your computer. This information can then be accessed remotely with RSS feeds, email feeds, or from any computer that has a web browser.
    Downloads: 2 This Week
    Last Update:
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