Tabletop
Tabletop.js gives spreadsheets legs
Reactable
Fast, flexible, and simple data tables in React
Timesheet.js
JavaScript library for HTML5 & CSS3 time sheets
Rickshaw
JavaScript toolkit for creating interactive real-time graphs
Socket.io
Realtime application framework for Node.JS, with HTML5 WebSockets and cross-browser fallbacks support.
LScache
A localStorage-based memcache-inspired client-side caching library.
Oboe.js
A fresh approach to AJAX that speeds up web applications. Progressive JSON parser with an easy interface so you can use the objects before the http response completes.
Relay
Relay is a JavaScript framework for building data-driven React applications.
JS xls
Javascript XLS (Excel 97-2004 spreadsheet) parser and (one day) writer
Ri Ta Js
RiTa: the generative language toolkit (in JS)
Typeorm
ORM for TypeScript and JavaScript (ES7, ES6, ES5). Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, WebSQL databases. Works in NodeJS, Browser, Ionic, Cordova and Electron platforms.
Envision JS
Dynamic HTML5 visualization
Brain
[UNMAINTAINED] Neural networks in JavaScript
Apexcharts.js
📊 Interactive and Modern SVG Charts
Tesseract.js
Pure Javascript OCR for 62 Languages 📖🎉🖥
Chance
Chance - Random generator helper for JavaScript
Jstat
JavaScript Statistical Library