Chart.js
Simple HTML5 Charts using the <canvas> tag
J Schema
A simple, easy to use data modeling framework for JavaScript
jQuery File Upload
File Upload widget with multiple file selection, drag&drop support, progress bars and preview images for jQuery. Supports cross-domain, chunked and resumable file uploads and client-side image resizing. Works with any server-side platform (PHP, Python, Ruby on Rails, Java, Node.js, Go etc.) that supports standard HTML form file uploads.
Flotr2
Graphs and Charts for Canvas in JavaScript.
Dygraphs
Interactive visualizations of time series using JavaScript and the HTML canvas tag. The dygraphs JavaScript library produces interactive, zoomable charts of time series.
Request
Simplified HTTP request client.
Dn2a Javascript
DN2A JavaScript - Digital Neural Networks Architecture with JavaScript
Immutable Js
Immutable persistent data collections for Javascript which increase efficiency and simplicity.
Lowdb
An extendable JSON database for Node and the browser powered by lodash
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!
Reactable
Fast, flexible, and simple data tables in React
Tabletop
Tabletop.js gives spreadsheets legs
Keras Js
Run Keras models in the browser, with GPU support using WebGL
Bookshelf
A simple Node.js ORM for PostgreSQL, MySQL and SQLite3 built on top of Knex.js
JS Xlsx
Javascript XLSX / XLSM / XLSB (Excel 2007+) parser and (one day) writer
Smoothie
Smoothie Charts: smooooooth JavaScript charts for realtime streaming data
Dimple
An object-oriented API for business analytics