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: 76 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: 131 This Week
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  • 3
    DigitalPlat FreeDomain

    DigitalPlat FreeDomain

    DigitalPlat FreeDomain: Free Domain For Everyone

    FreeDomain is a DigitalPlat project that provides free domain names for individuals, developers, open-source projects, nonprofits, and small organizations. It is built around the idea that everyone should be able to create a public web identity without paying for a domain upfront. Users can register a domain and connect it to a DNS provider such as Cloudflare, FreeDNS, Hostry, or their own DNS infrastructure. The repository includes documentation for account setup, DNS configuration, and domain activation. It is intended to be approachable even for users with little prior DNS experience. FreeDomain is best suited for personal websites, small projects, testing environments, and public-interest web initiatives.
    Downloads: 8 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: 8 This Week
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  • 5
    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: 7 This Week
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  • 6
    WorkerVless2sub

    WorkerVless2sub

    Automate batch replacement to generate subscription generators

    WorkerVless2sub is a dedicated subscription generator focused on providing “preferred line” subscriptions by processing VMess, VLESS, Trojan nodes, filtering and replacing automatically via a Cloudflare Worker script. The idea is you supply node lists (or use existing APIs/CSV sources) and the worker filters them by criteria like speed or reliability and then emits a subscription link for end-users. It supports deployment on Cloudflare Pages or Workers, offers configuration via variables like HOST, UUID, PATH, ADD, ADDAPI etc., and has an Apache-2.0 license. The tool supports both IPv4 and IPv6 node sources, speed test CSV inputs, and logic to drop nodes that don’t meet the threshold (DLS variable). It has a sizeable star count and forks indicating broader adoption in self-hosted proxy subscription communities. The README also explicitly warns about hosting personal private nodes in the script if intending public use.
    Downloads: 5 This Week
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  • 7
    Fenix Web Server

    Fenix Web Server

    A simple and visual static web server with collaboration features

    Fenix is a desktop-based static web server application built for developers who want a quick, visual, and easy way to serve local folders as HTTP servers — useful for previewing static sites, mocking APIs, or sharing directories without requiring heavy web server setup. It provides a GUI that lets you point to a local directory, pick a port (or auto-choose an available port), and start a server with a single click; this makes it a handy tool for front-end developers, static-site creators, or anyone needing a fast local web server. Beyond just serving static files, Fenix supports features like automatic port management, optional GZip compression, optional JS/CSS minification, Markdown-to-HTML rendering, and simple server logging — making it more capable than the most minimal style tools. The app can also share your local site publicly (for example via tunnelling) — useful for quick demos, sharing prototypes, or collaborating with remote reviewers.
    Downloads: 4 This Week
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  • 8
    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.
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    Downloads: 16 This Week
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  • 9
    AST explorer

    AST explorer

    A web tool to explore the ASTs generated by various parsers

    Paste or drop code into the editor and inspect the generated AST. Depending on the parser settings, it not only supports ES5/CSS3. Since the future syntax is supported, the AST explorer is a useful tool for developers who want to create AST transforms. In fact, transformers are included so you can prototype your own plugins. Save and fork code snippets. Copy the URL to share them. Copying an AST or dropping a file containing an AST into the window will parse the AST and update the code using escodegen. Otherwise, the content of the text editor will be replaced with the content of the file (i.e. you can drag and drop JS files). Choose between multiple parsers and configure them. shift+click on a node expands the full subtree. Hovering over a node highlights the corresponding text in the source code. Editing the source or moving the cursor around will automatically highlight the corresponding AST node (or its ancestors of it isn't expanded).
    Downloads: 3 This Week
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  • 10
    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: 3 This Week
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  • 11
    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: 2 This Week
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  • 12
    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: 9 This Week
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  • 13
    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: 7 This Week
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  • 14
    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
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  • 15
    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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  • 16
    Wretch

    Wretch

    A tiny wrapper built around fetch with an intuitive syntax

    A tiny (~ 3Kb g-zipped) wrapper built around fetch with an intuitive syntax. Wretch is compatible with modern browsers out of the box. For older environments without fetch support, you should get a polyfill. Converts a javascript object to query parameters, then appends this query string to the current url. String values are used as the query string verbatim. Only compatible with browsers that support AbortControllers. Otherwise, you could use a (partial) polyfill. Associates a custom controller with the request. Useful when you need to use your own AbortController, otherwise wretch will create a new controller itself. Aborts the request after a fixed time. If you use a custom AbortController associated with the request, pass it as the second argument. Returns the automatically generated AbortController alongside the current wretch response as a pair.
    Downloads: 1 This Week
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  • 17
    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.
    Downloads: 4 This Week
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  • 18
    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: 11 This Week
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  • 19

    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: 2 This Week
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  • 20
    Online wish list, where people list what they want and people claim from the list. Integrating with online stores and other wishlists assists users. A high level of secrecy is desirable to maintain the mystery of presents, while still being easy to u
    Downloads: 6 This Week
    Last Update:
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  • 21
    JAMP (acronym Javascript Ajax Mysql Php) is powerful and fast framework, distributed with GNU licence, in it is enclosed a suit environment for the development WEB applications.
    Downloads: 4 This Week
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  • 22
    DymoChromePrinting

    DymoChromePrinting

    Printing to Dymo LabelWriter without NPAPI

    System to allow printing to Dymo Labelwriter labelprinters without NPAPI plugin framework which has recently been disabled in chrome. System runs a local node.js server which accepts XML which is passed into the label framework. Includes a chrome extension to allow CORS/Mixed content posts to localhost to print labels, typically blocked by browser. See README.txt for information on usage. ----------------------- Note: Compiled Binaries are windows only, but this method is macintosh compatible. You'll just need to compile printlabel.exe for mac & write shell scripts to launch the server to replace runserver.exe & obtain a mac copy of node.exe. Please use the discussion page if you have any questions
    Downloads: 2 This Week
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  • 23
    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.
    Downloads: 2 This Week
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  • 24
    Orthanc

    Orthanc

    Lightweight, RESTful DICOM server for healthcare and medical research

    [2015-06-12] Orthanc has left SourceForge. All the downloads are now available directly from our official Website: http://www.orthanc-server.com/browse.php
    Downloads: 2 This Week
    Last Update:
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  • 25
    RapidASDev for Oracle

    RapidASDev for Oracle

    RASD for Oracle

    RASD (Rapid Application Service Development) development platform for fast createing web based applications with less or no programming. For developing in RASD all you need is browser. The program you create is published as HTML5 or REST service. All subprograms (look up's, ...) are published as HTML5 or. REST too. If you create batch program in PL/SQL you can use the same tool. All generated by RASD can be overwritten with using triggers (remember classical Forms). The best thing is that the development cycle is really fast. The development process can be start with the business users (no or less documentation and no programming) with the combination of analytics or designers. In few minutes you can have working prototype for business users to discuss about their requirements. For the first impression (live super DEMO projects, code,... ) you can test it on http://bit.ly/RasdNo1 Code on GITLAB https://gitlab.com/rasd-installation/rasd Go to WIKI for more details ....
    Downloads: 2 This Week
    Last Update:
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