Fast Check
Property based testing framework for JavaScript (like QuickCheck) written in TypeScript
Mediaelement
HTML5 <audio> or <video> player with Flash and Silverlight shims that mimics the HTML5 MediaElement API, enabling a consistent UI in all browsers.
Docx
Easily generate .docx files with JS/TS with a solid API. Works for Node and on the Browser.
Components
Component infrastructure and Material Design components for Angular
Overmind
Overmind - Frictionless state management
State
Hierarchical finite state machine for TypeScript and JavaScript
Axios
Promise based HTTP client for the browser and node.js
I18next
Internationalisation (i18n) with javascript the easy way (incl. jquery plugin)
React Native Web
React Native for Web
Jquery UI
The official jQuery user interface library.
Native Script
NativeScript is an open source framework for building truly native mobile apps with JavaScript. Use web skills, like Angular and Vue.js, FlexBox and CSS, and get native UI and performance on iOS and Android.
Vexflow
A JavaScript library for rendering music notation and guitar tablature.
Koa
Expressive middleware for node.js using ES2017 async functions
Ant Design
🐜 A UI Design Language
Fortune
A library for managing structured data in Node.js and web browsers.
Webgl Workshop
The sequel to shader-school: Learn the WebGL API