Alchemy
Alchemy.js is a graph drawing application built in d3.
Synaptic
architecture-free neural network library for node.js and the browser
Aja.js
Ajax without XML : Asynchronous JavaScript and JavaScript/JSON(P)
Jszip
Create, read and edit .zip files with Javascript
Chart.js
Simple HTML5 Charts using the <canvas> tag
Dc.js
Multi-Dimensional charting built to work natively with crossfilter rendered with d3.js
Backbone localStorage
A localStorage adapter for Backbone.js
J Schema
A simple, easy to use data modeling framework for JavaScript
Heatmap.js
JavaScript Library for HTML5 canvas based heatmaps
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.
Smoothie
Smoothie Charts: smooooooth JavaScript charts for realtime streaming data
Dimple
An object-oriented API for business analytics
Keras Js
Run Keras models in the browser, with GPU support using WebGL
Epoch
A general purpose, real-time visualization library.
JS Xlsx
Javascript XLSX / XLSM / XLSB (Excel 2007+) parser and (one day) writer
Crossfilter
Fast n-dimensional filtering and grouping of records.