Open Source JavaScript Protocols
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JavaScript Protocols
View related business solutionsBrowse 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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MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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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. -
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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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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.
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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. -
Build Agents and Models on One PlatformGemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
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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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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). -
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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. -
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Gatsby
Build blazing fast, modern apps and websites with React
Gatsby is a free and open source web framework based on React that allows you to build blazing fast websites and apps. It offers the latest web technologies, such as React.js, Webpack, modern JavaScript, CSS and more to help you build really fast websites. A Progressive Web App generator, it’s fast in every way that matters. -
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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. -
Train ML Models With SQL You Already KnowBuild and deploy ML models using familiar SQL. Automate data prep with built-in Gemini. Query 1 TB and store 10 GB free monthly.
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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. -
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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. -
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css-spinner
Small, elegant pure css spinner for ajax or loading animation
Open source CSS loading animations dedicated for speed, simplicity & dev-friendly. Loading.io's CSS spinner uses CSS Animation, which is wildly supported by all modern browsers such as Google Chrome and Mozilla Firefox. However, the Microsoft Internet Explorer version earlier than 10 doesn't support CSS Animation. To support older IE, you have to use a GIF format image. Choose one from loading.io's online spinner gallery and you can customize a unique loader GIF with our icon editor easily. Some older browsers need prefixes like '-WebKit-' to use CSS Animation. To minimize file size, we omitted all vendor prefixes in loaders' CSS, but you can customize this by building CSS from the source. We also provide stylus and pug source files for better integrating these spinners into your project. Find corresponding stylus and pug files for your desired spinners under src/ folders. -
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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. -
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CF-Workers-SUB
Aggregates any of your nodes with multiple subscriptions
CF-Workers-SUB is a project that uses Cloudflare Workers to aggregate or convert multiple subscription sources (for proxy nodes/configs) into a personalized subscription link for the user. Essentially, it lets you input your own node(s) and then generate a unified subscription endpoint that others can use with tools like Clash, Sing-box, or V2Ray. The repository emphasizes being user-friendly for scenarios where one has many proxy/node links but wants to streamline into a single subscription feed. It also supports variable configuration (token, built-in nodes, custom add/CSV/API sources) to produce automated “preferred line” generation. The project is aimed at “subscription” style services (i.e., providing proxies as subscriptions) rather than pure application logic, and is tailored toward self-hosters. It’s designed for ease of deployment on Workers or Pages, enabling people to maintain their own subscription link infrastructure cheaply. -
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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. -
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jsdom
JavaScript implementation of various web standards, for use with Node
jsdom is a pure-JavaScript implementation of many web standards, notably the WHATWG DOM and HTML Standards, for use with Node.js. In general, the goal of the project is to emulate enough of a subset of a web browser to be useful for testing and scraping real-world web applications. The latest versions of jsdom require Node.js v10 or newer. To use jsdom, you will primarily use the JSDOM constructor, which is a named export of the jsdom main module. Pass the constructor a string. The resulting object is an instance of the JSDOM class, which contains a number of useful properties and methods besides window. In general, it can be used to act on the jsdom from the "outside," doing things that are not possible with the normal DOM APIs. For simple cases, where you don't need any of this functionality, we recommend a coding pattern. -
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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.
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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. -
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ecAjax
Javascript Clientside Templating Engine to handle XML
Introduction Since the introduction of Ajax, server-side templating is becoming redundant. Objective To make production of Ajax web pages easier. Goal To create a client-side templating engine written in Javascript. Target All major browsers. -
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Bliss
Blissful JavaScript
Want to use Vanilla JS but find native APIs a bit unwieldy? Bliss is for you. Designed to work with Vanilla JS, not replace it. Only adds one _ property (optional, customizable). Know what you’re running. Excellent for learning. Use polyfills to extend browser support. Adding new blissful methods is easy as pie! Only 3KB minified & gzipped! Bliss is just a collection of helpers and light syntactic sugar over Vanilla JS. It does not account for browser bugs or lack of support of certain APIs, although it only uses features that are both supported across most modern browsers and can be polyfilled. For example, it uses Promises throughout (supported by all latest browsers, can be polyfilled), but, despite the temptation, not arrow functions (syntactic extension, cannot be polyfilled). The idea is that you can extend support by using polyfills, depending on your needs. -
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CF-Workers-docker.io
Docker Warehouse Image Proxy Tool
CF-Workers-docker.io is a project by cmliu that sets up a proxy for Docker Hub (and potentially other container image registries) using Cloudflare Workers, effectively acting as a middle-man mirror to improve image pull reliability and speed in regions where direct access is degraded. The idea is to intercept registry requests, reroute or mirror them through a worker endpoint, and therefore bypass regional limitations or firewall blocks affecting official Docker registries. Users can deploy their own copy of this proxy, point their Docker daemon’s registry-mirrors configuration to it, and benefit from an accelerated and more accessible image pull experience. The project’s README warns about possible policy risks—since Cloudflare’s terms forbid use of Workers for VPN or similar proxy services, so users deploy at their own risk. It also includes instructions for setting up both Docker daemon and containerd/podman equivalents by customizing configuration files. -
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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. -
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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. -
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Foxman
An extensible mock server
Fox lies, which means mock; Man means intellectual and elegant. -
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Koa REST API Oops Serverless Boilerplate
Koa REST API Oops Serverless Boilerplate
Boilerplate for Node.js Koa RESTful API application with Serverless, Cors, Error Handling, Logger, Request Log Time. Koa REST API Boilerplate is a highly opinionated boilerplate template for building RESTful API application with Koa.
