Mqtt.js
The MQTT client for Node.js and the browser
Sigma
An open-source lightweight JavaScript graph drawing library
Dc.js
Multi-Dimensional charting built to work natively with crossfilter rendered with d3.js
SockJS Client
WebSocket emulation - Javascript client
List
Do you want a 3 KB (gzipped&minified) cross-browser native JavaScript that makes your plain HTML lists and tables super flexible, searchable, sortable and filterable? Yeah! Do you also want the possibility to add, edit and remove items by dead simple templating? Hell yeah!
Bookshelf
A simple Node.js ORM for PostgreSQL, MySQL and SQLite3 built on top of Knex.js
Watermelon Db
🍉 High-performance reactive database for powerful React and React Native apps ⚡️
Rickshaw
JavaScript toolkit for creating interactive real-time graphs
Synaptic
architecture-free neural network library for node.js and the browser
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.
Convnetjs
Deep Learning in Javascript. Train Convolutional Neural Networks (or ordinary ones) in your browser.
Data Tables
DataTables is a plug-in for the jQuery Javascript library. It is a highly flexible tool, based upon the foundations of progressive enhancement, which will add advanced interaction controls to any HTML table.
JS Plumb
jQuery/MooTools/YUI3 Javascript library that lets you connect parts of your UI together.
Chance
Chance - Random generator helper for JavaScript
Metrics Graphics
A library optimized for concise, principled data graphics and layouts.
Slick Grid
A lightning fast JavaScript grid/spreadsheet