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.

  • Our Free Plans just got better! | Auth0 Icon
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    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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  • 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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  • 1
    PDF.js

    PDF.js

    A PDF Reader in JavaScript

    PDF.js is a web standards-based platform for parsing and rendering Portable Document Formats (PDFs). Open source and built with HTML5, this PDF viewer is supported by a great community and Mozilla Labs. PDF.js can be used on both modern and older browsers, and is built into version 19+ of Firefox.
    Downloads: 126 This Week
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  • 2
    phpipam

    phpipam

    phpipam open-source IP address management

    phpipam is an open-source web IP address management application (IPAM). Its goal is to provide light, modern and useful IP address management. It is php-based application with MySQL database backend, using jQuery libraries, ajax and some HTML5/CSS3 features.
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    Downloads: 155 This Week
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  • 3
    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
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    Downloads: 30 This Week
    Last Update:
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  • 4
    FeedKit

    FeedKit

    An RSS, Atom and JSON Feed parser written in Swift

    FeedKit is an RSS, Atom and JSON Feed parser written in Swift. Build a URL pointing to an RSS, Atom or JSON Feed. A common scenario in UI environments would be parsing a feed asynchronously from a user-initiated action, such as the touch of a button. Remember, you are responsible for manually bringing the resulting closure to whichever queue is appropriate. Usually to the Main thread, for UI apps, by calling DispatchQueue.main.async. FeedKit adopts Swift 5 Result type, as Result<Feed, ParserError>, and as such, if parsing succeeds you should now have a Strongly Typed Model of an RSS, Atom or JSON Feed, within the Feed enum. The RSS and Atom feed Models are rather extensive throughout the supported namespaces.
    Downloads: 2 This Week
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  • Build Securely on Azure with Proven Frameworks Icon
    Build Securely on Azure with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
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  • 5
    PL/JSON
    NOTICE: we have moved to Github -- https://github.com/pljson/pljson PL/JSON is a generic JSON object written in PL/SQL. Using PL/SQL object syntax, users instantiate a JSON objects and then add members, arrays and additional JSON objects. This object type can store JSON data, in Oracle, persistently.
    Downloads: 7 This Week
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  • 6
    MActor is an extensible tool for functional integration testing. It can facilitate tests a range of integration technologies (support for JMS, XML over HTTP, SOAP, TIBCO Rv, IBM MQ series and file-shares are currently supplied with the tool)
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    Downloads: 29 This Week
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  • 7
    jQuery Form

    jQuery Form

    jQuery form plugin

    The jQuery Form Plugin allows you to easily and unobtrusively upgrade HTML forms to use AJAX. The jQuery Form Plugin allows you to easily and unobtrusively upgrade HTML forms to use AJAX. The main methods, ajaxForm and ajaxSubmit, gather information from the form element to determine how to manage the submit process. Both of these methods support numerous options which allows you to have full control over how the data is submitted. Submitting a form with AJAX doesn’t get any easier than this! When this form has been submitted the name and comment fields will be posted to comment.php. If the server returns a success status then the user will see a “Thank you” message. Add a form to your page. Just a normal form, no special markup required. Include jQuery and the Form Plugin external script files and a short script to initialize the form when the DOM is ready.
    Downloads: 1 This Week
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  • 8
    PyXB (“pixbee”) is a pure Python package that generates Python source code for classes that correspond to data structures defined by XMLSchema. In concept it is similar to JAXB for Java and CodeSynthesis XSD for C++.
    Downloads: 4 This Week
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  • 9
    Small footprint C++ library to extract an XPath 1.0 expression from an XML tree. Uses the TinyXML project to parse XML trees and store intermediate results. Runs on any platform. Optional use of STL. Overhead less than 100KB, including TinyXML.
    Downloads: 8 This Week
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  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 10
    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.
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    Downloads: 7 This Week
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  • 11
    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
    Downloads: 3 This Week
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  • 12
    EXIficient
    NOTE: we moved to http://exificient.github.io !!! The Efficient XML Interchange (EXI) format is a very compact representation for the Extensible Markup Language (XML) Information Set that is intended to simultaneously optimize performance and the utilization of computational resources. Besides the EXI library EXIficient provides a command-line interface (CLI, see com.siemens.ct.exi.cmd.EXIficientCMD) and a graphical user interface (GUI, see http://exificient.sourceforge.net/exificient.jnlp)
    Downloads: 1 This Week
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  • 13
    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: 3 This Week
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  • 14
    SMPP protocol library for fast and easy SMSC(Short Message Service Centre) client development even for non-telecom guys. Easy to use classes covers all needed functionality for SMS applications developers and Content Providers. Written for .NET 2.0 in C#
    Downloads: 1 This Week
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  • 15
    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: 1 This Week
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  • 16

    AjaxToaster

    Servlet framework for creating standalone restful CRUD services

    AjaxToaster is built on XMLToaster and inspired by the "guerrilla SOA" philosphy. You can use it to quickly create RESTful JSON & XML based CRUD services for your web applications by writing short scripts. It is downloadable as a windows installer package for quick no-hassle setup. It runs as a servlet in an app-server. By default it sets itself up to run inside its own standalone (jetty) server. Code contributions most welcome!
    Downloads: 1 This Week
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  • 17
    A full XML Parser for PHP with RSS Parser specific functionsl; think of it as an interface to the PHP DOM which allows easy access to your XML based documents. Auto encoding conversion to UTF-8 + Array to XML Conversion. V3 is now a commercial product
    Downloads: 1 This Week
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  • 18
    This is a simple CRUD app that uses basic JQuery functions. Detail screen has CRUD & next/prev buttons. Select a person via the master list screen. Master is a JQ DT with buffering. It uses MySQL. Pls refer to http://tekne-techne.blogspot.com
    Downloads: 1 This Week
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  • 19
    AJAX Topic Map is an application designed to visualize Topic Maps in any webbrowser without the use of plugins.
    Downloads: 0 This Week
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  • 20
    AJAX WebService component provides easy and efficient way to explore/invoke any WebServices directly from JavaScript (both RPC and Document style), without additional server-side support. Incorporated WebService Explorer shows many abilities of component
    Downloads: 0 This Week
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  • 21

    APIthet

    An Application to security test RESTful web APIs.

    APIthet is an application to security test RESTful web APIs. Assessing APIs help in detecting security vulnerabilities at an early stage of the SDLC. Compare this with assessing an Android application that uses APIs on a backend server. This kind of assessment happens at a much later phase of the SDLC. Even worse, it does not necessarily touch all the APIs. That's not all. You specify one of the JSON parameters as random. This helps set a unique value for a specific JSON parameter in an API. The application is available as a Windows exe file.. In progress and planned features: -More test cases to attack target API. -Add APIs and define sequence. -Read APIs from doc link. -Business Logic test. TODO: Build for Linux (and may be OS X).
    Downloads: 0 This Week
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  • 22
    ASI to Smart-M3 SIB synchronization agent
    Downloads: 0 This Week
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  • 23
    Aparicio delivers accessible, AJAX-based web user interface (and example JEE/Servlets binding) to render and edit Semantic information. It allows users to easily create RDF data.
    Downloads: 0 This Week
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  • 24
    AceJudge is a system for managing programming contests. AceJudge's basic features include automatic judging of submitted programs, answering to clarification questions about problem descriptions, reevaluation of programs, real time ranking etc.
    Downloads: 0 This Week
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  • 25
    Aggregated4 is an open-source, news aggregator. It is planned to [initially] support RSS (versions 0.9 to 2.0, and further if applicable), Atom (0.3 to 1.0, and further if applicable), and in subsequent releases podcast catching, Torrent downloads, etc.
    Downloads: 0 This Week
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