Appium is an open-source, Node.js server used for automating native, mobile web, and hybrid applications on iOS, Android and the Universal Windows Platform.

Dojo is a progressive TypeScript framework for building modern web apps with a focus on developer ergonomics.

Electron is a framework to build cross platform desktop apps with JavaScript, HTML, and CSS.

Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications.

jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers.

Node.js® is a JavaScript runtime built on Chrome’s V8 JavaScript engine.

webpack is a bundler for modules and is primarily used to bundle JavaScript files for usage in a browser. It is also capable of transforming, bundling, or packaging just about any resource or asset.

AMP allows any publisher to have pages load quickly on mobile devices.

architect offers a simplistic plaintext manifest and npm script based workflows for creating, deploying, working offline and more with cloud functions.

ESLint is an open source project originally created by Nicholas C. Zakas in June 2013. Its goal is to provide a pluggable linting utility for JavaScript.

Esprima is a high performance, standard-compliant ECMAScript parser written in ECMAScript (also popularly known as JavaScript).

Fastify is a web framework highly focused on providing the best developer experience with the least overhead and a powerful plugin architecture.

Globalize is a JavaScript library for internationalization and localization that leverages the official Unicode CLDR JSON data.

Grunt is a JavaScript command line utility designed to help automate repetitive project tasks such as minification, compilation, unit testing, linting and deployment.

Interledger.js enables instant payments and micropayments in any currency, across many payment networks using the Interledger Protocol (ILP).

Intern is a complete test stack for JavaScript or TypeScript designed to help you write and run consistent, high-quality test cases for your JavaScript or TypeScript libraries and applications.

NativeScript empowers developers to access native APIs from JavaScript directly.

JerryScript is a lightweight, fully-featured JavaScript engine for Internet of Things devices, which implements the full ECMAScript 5.1 standard bringing the approachability and power of JavaScript to the IoT space and supports on-device compilation, execution and provides access to peripherals from JavaScript.

Jest is a delightful JavaScript Testing Framework with a focus on simplicity.

A highly extensible Node.js and TypeScript framework for building APIs and microservices.

Lodash is a modern JavaScript utility library delivering modularity, performance & extras. Lodash makes JavaScript easier by taking the hassle out of working with arrays, numbers, objects, strings, etc.

Marko is a friendly (and fast!) UI library that makes building web apps with reactive UI components fun!

messageformat is a mechanism for handling both pluralization and gender in your applications. It can also lead to much better translations, as it’s designed to support all the languages included in the Unicode CLDR.

Mocha is a feature-rich JavaScript testing framework providing a command-line interface for Node.js as well as in-browser project testing capabilities.

Moment is a lightweight JavaScript date library for parsing, validating, manipulating, and formatting dates and it also provides much needed time zone support to JavaScript through Moment Timezone.

Node-RED is a flow-based programming environment built on Node.js — commonly used in the IoT space — and aimed at creating event-driven applications that can easily integrate APIs and services.

Node Version Manager (nvm) is a POSIX-compliant bash script to manage multiple active Node.js versions.

QUnit is a powerful, easy-to-use JavaScript unit testing framework. It’s used by the jQuery, jQuery UI and jQuery Mobile projects and is capable of testing any generic JavaScript code, including itself.

A Node.js bindings implementation for the W3C WebDriver protocol.

webhint is a linting tool for the web, with a strong focus on the developer experience: easy to configure, develop, and well documented.

Kepler.gl is a powerful open source geospatial analysis tool for large-scale data sets.

Vis.gl is a suite of composable, interoperable open source geospatial visualization frameworks centered around deck.gl.

Cosmos.gl is a GPU-accelerated force-directed graph layout and rendering engine that empowers developers, researchers, and analysts to interact with massive, complex datasets, right in the browser.

The GeoDa AI project adds free and open spatial statistical webtools that analysts can use to make sense of spatial data patterns with AI assistants.

Lit is a JavaScript library for building web UI components, based on the W3C web components standards. 

Chassis is creating open standards designed for CSS libraries, JavaScript UI libraries, and web developers in general. This project will define standards for markup and class names for common widgets and patterns, as well as an implementation of those standards.

HospitalRun is built to provide the most modern hospital information system possible to the least resourced environments.

jQuery Mobile is a HTML5-based user interface system designed to make responsive web sites and apps that are accessible on all smartphone, tablet and desktop devices.

jQuery UI is a curated set of user interface interactions, effects, widgets, and themes built on top of jQuery. Whether you're building highly interactive web applications, or you just need to add a date picker to a form control, jQuery UI is the perfect choice.

PEP polyfills pointer events in all browsers that haven't yet implemented them, providing a unified, responsive input model for all devices and input types.

RequireJS is a JavaScript file and module loader. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Rhino and Node.

A pure-JavaScript CSS selector engine designed to be easily dropped in to a host library.