Superagent
Ajax with less suck - (and node.js HTTP client to match)
React Intl
Internationalize React apps. This library provides React components and an API to format dates, numbers, and strings, including pluralization and handling translations.
Impress
Impressive totalitarian style Multipurpose Application Server for node.js. All decisions are made. Solutions are scaled. Tools are provided and optimized for high load. Ready for applied development and production.
Ionic
Advanced HTML5 Mobile App Framework. A beautiful front-end framework for developing hybrid mobile apps in HTML5. Best friends with AngularJS.
Componentjs
ComponentJS -- Powerful run-time Component System for structuring HTML5-based Rich Clients
Apricot
A simple Hpricot Clone for nodejs.
Jasmine
DOM-less simple JavaScript testing framework
HtmlJs
HTML render engine and data binding (MVVM)
Pdf.js
PDF Reader in JavaScript
Peerjs
Peer-to-peer data in the browser
Surveyjs
JavaScript Survey and Form Library
Alasql
AlaSQL.js - JavaScript SQL database for browser and Node.js. Handles both traditional relational tables and nested JSON data (NoSQL). Export, store, and import data from localStorage, IndexedDB, or Excel.
Quill
A cross browser rich text editor with an API
Styled Components
Visual primitives for the component age. Use the best bits of ES6 and CSS to style your apps without stress 💅
Pg Mem
An in memory postgres DB instance for your unit tests
jQuery.terminal
jQuery Terminal Emulator - JavaScript library for creating web-based terminals with custom commands