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

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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: 59 This Week
    Last Update:
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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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    4.8 out of 5 stars 37 Reviews
    Downloads: 161 This Week
    Last Update:
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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.
    4.9 out of 5 stars 45 Reviews
    Downloads: 61 This Week
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  • 4
    Lighthouse

    Lighthouse

    Automated auditing, performance metrics, & best practices for the web

    Lighthouse is an open-source, automated tool that analyzes and audits web apps and web pages in order to improve their quality. Lighthouse collects modern performance metrics and insights on developer best practices; auditing for performance, accessibility, SEO and more. After auditing it produces a report either in JSON or HTML. Included in the report is a reference doc that explains the importance of the audit and how to fix the problem areas, which you can use to improve the web app or web page. Lighthouse can be integrated directly into the Chrome DevTools with its own panel. To run it, you would simply have to select the Lighthouse panel and click on "Generate report". It can also be run from the command line, or as a Node module.
    Downloads: 11 This Week
    Last Update:
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  • 5
    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.
    4.9 out of 5 stars 49 Reviews
    Downloads: 39 This Week
    Last Update:
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  • 6
    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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    5.0 out of 5 stars 9 Reviews
    Downloads: 33 This Week
    Last Update:
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  • 7
    Tabulator

    Tabulator

    Interactive tables and data grids for JavaScript

    Tabulator allows you to create interactive tables in seconds from any HTML Table, Javascript Array or JSON formatted data. Simply include the library and the css in your project and you're away! Tabulator has an enormous number of features to help customize your table experience to your needs. With new features released every month, there is bound to be something to get your interactive table juices flowing. Tabulator is built to work with all the major front-end JavaScript frameworks including React, Angular and Vue. Header filters and programmatic filters can be set independently allowing you to use a header filter to further restrict the rows shown in an already filtered data set. If an input element is used as the filter element, the table will be filtered in real-time as the user types in the input element. To prevent excessive redrawing of the table Tabulator will wait 300 milliseconds after the user has finished typing before triggering the filter.
    Downloads: 3 This Week
    Last Update:
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  • 8
    OpenVPN ALS is a web-based SSL VPN server written in Java. It has a browser-based AJAX UI which allows easy access to intranet services. OpenVPN ALS is a direct descendant of Adito, which was a fork of SSL-Explorer.
    4.8 out of 5 stars 17 Reviews
    Downloads: 6 This Week
    Last Update:
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  • 9

    ajile

    Advanced JavaScript Importing & Loading Extension

    ajile: Advanced JavaScript Importing & Loading Extension allows developers to easily create unique namespaces for JavaScript modules and quickly define dependencies that allow scripts to automatically load and import each other as needed.
    Downloads: 27 This Week
    Last Update:
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  • 10
    CloudServer

    CloudServer

    Zenko CloudServer open-source Node.js implementation of S3 protocol

    Zenko CloudServer, an open-source Node.js implementation of the Amazon S3 protocol on the front-end and backend storage capabilities to multiple clouds, including Azure and Google.
    Downloads: 1 This Week
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  • 11
    Site Kit for WordPress

    Site Kit for WordPress

    Site Kit is a one-stop solution for WordPress users

    Site Kit is a first-party WordPress plugin that brings key Google services into a single dashboard so site owners can see how their content performs and fix issues without leaving wp-admin. After a guided setup and verification flow, it connects properties to Search Console, Analytics, AdSense, PageSpeed Insights, and other services, surfacing the most relevant metrics per page and per site. The plugin focuses on clarity: traffic sources, search queries, top pages, and monetization signals appear alongside actionable performance recommendations. It also handles authentication and permission scopes securely, so multiple collaborators can access insights without sharing credentials. Widgets and contextual panels put data where it’s needed—for example, on the post list or edit screen—reducing tab-switching. For developers and agencies, Site Kit simplifies client onboarding and standardizes reporting across many sites.
    Downloads: 1 This Week
    Last Update:
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  • 12
    Soap

    Soap

    A SOAP client and server for node.js

    A SOAP client and server for node.js. This module lets you connect to web services using SOAP. It also provides a server that allows you to run your own SOAP services. Very simple API Handles both RPC and Document schema types. Supports multiRef SOAP messages. Support for both synchronous and asynchronous method handlers. WS-Security UsernameToken Profile 1.0. Supports Express-based web server (body parser middleware can be used) The so called one-way (or asynchronous) calls occur when an operation is called with no output defined in WSDL. The server sends a response (defaults to status code 200 with no body) to the client disregarding the result of the operation.
    Downloads: 1 This Week
    Last Update:
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  • 13
    Web Archives

    Web Archives

    Browser extension for viewing archived and cached versions of websites

    Browser extension for viewing archived and cached versions of web pages, available for Chrome, Edge and Safari. Web Archives is a browser extension that enables you to find archived and cached versions of web pages, and comes with support for more than 10 search engines. Searches can be initiated from the context menu and the browser toolbar. A diverse set of archive and cache sources are supported, which can be toggled and reordered from the extension's options. Visit the wiki for the full list of supported search engines. You may choose to allow the extension to run on every website, or grant access to the current website before a search. When you grant access only to the current website, access must also be granted to each search engine in order to view search results. A handful of search modes are offered that serve different use cases. The search mode can be set independently for the context menu and the browser toolbar from the extension's options.
    Downloads: 1 This Week
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  • 14
    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
    Last Update:
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  • 15
    A server-side web-based AJAX-enabled RSS/Atom feed aggregator/news tracking tool. Requires PHP 4/5 and MySQL 4/5. Can host on Windows/Linux/BSD/MacOSX and browse on IE6/IE7/Firefox/Safari/Chrome/et al. See our web site for more details.
    5.0 out of 5 stars 4 Reviews
    Downloads: 5 This Week
    Last Update:
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  • 16

    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.
    5.0 out of 5 stars 11 Reviews
    Downloads: 2 This Week
    Last Update:
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  • 17
    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.
    3.4 out of 5 stars 5 Reviews
    Downloads: 5 This Week
    Last Update:
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  • 18
    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.
    5.0 out of 5 stars 2 Reviews
    Downloads: 2 This Week
    Last Update:
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  • 19
    Cclite

    Cclite

    Cclite Alternative Currency Software

    There's work and a first package of Cclite2, using Mojolicious https://sourceforge.net/projects/cclite2/. New version with solution for Debian packaging and update to template processing for new versions of Perl. This is version 0.9.5.1 mid-October 2015. As I have limited time, most of the focus will be phones, SMS and an app with SMS as underlying mechanism. Work on making install easier especially on Debian based distros. Windows deprecated now. ============== Community currency for local exchange trading systems (LETS)and other alternative money systems. Multi-registry (group), multi-currency, with inter-registry transactions using web services (SOAP,REST), with rough templates for 17 languages. Various payment interfaces email, SMS, jabber, batch. User manual. Note Cclite is NOT crypto, it's mutual social credit! https://github.com/hbarnard/cclite-android-app this is now also here as: https://sourceforge.net/projects/cclite-android-app
    Downloads: 5 This Week
    Last Update:
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  • 20
    A PHP implementation of the XML-RPC web RPC protocol. Extra modules provide support for the JSON and JSONRPC protocols. A javascript version of the library is also available.
    5.0 out of 5 stars 1 Review
    Downloads: 2 This Week
    Last Update:
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  • 21
    Cloudy is a open source cloud development environment, based on Mozilla Bespin. If somebody is interested in helping with this project, just email me.
    Downloads: 3 This Week
    Last Update:
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  • 22
    SITools2
    SITools2 is a new CNES generic tool performed by a joint effort between CNES and scientific laboratories. The aim of SITools is to provide a self-manageable data access layer deployed on already existing scientific laboratory databases.
    5.0 out of 5 stars 2 Reviews
    Downloads: 1 This Week
    Last Update:
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  • 23
    easyrec
    easyrec is a recommender system that aims for easy integration of recommendations into web applications. It has a web based admin tool, and its recommendation engine is accessible through a REST API, providing methods like 'other users also bought'
    5.0 out of 5 stars 2 Reviews
    Downloads: 1 This Week
    Last Update:
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  • 24
    RSSProxy
    RSSProxy is a web based RSS-Reader with export. It exports only the unread messages. So you can read online and your RSS-Reader at home only gets unread messages.
    Downloads: 2 This Week
    Last Update:
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  • 25

    Service Grid - Language Grid Base System

    SOA infrastracture initially developed by NICT Language Grid Project

    Service Grid is an infrastructure for accumulating and sharing Web services. Resources with complicated intellectual property issues are wrapped as Web services and shared on the Service Grid. If you release your software by using the software of this project, please include the following description in the documents or on the website. * This software uses the [SOFTWARE] by the Language Grid project (http://langrid.org/). [SOFTWARE] is one of: * Service Grid Server Software (http://langrid.org/oss-project/en/service_grid.html) * Language Service Development Libraries (http://langrid.org/oss-project/en/language_service.html) * Language Grid Toolbox (http://langrid.org/oss-project/en/toolbox.html) If you publish a paper by using the software of this project, please cite the following book. * Toru Ishida Ed. The Language Grid: Service-Oriented Collective Intelligence for Laguage Resource Interoperability. Springer, 2011. ISBN 978-3-642-21177-5.
    Downloads: 2 This Week
    Last Update:
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