Faye
Simple pub/sub messaging for the web
D3 Cloud
Create word clouds in JavaScript.
Backgrid
Finally, an easily stylable semantic HTML data grid widget with a Javascript API that doesn't suck.
Mesh.js
common, streamable interface for synchronizing data
Tfjs
A WebGL accelerated JavaScript library for training and deploying ML models.
Slick Grid
A lightning fast JavaScript grid/spreadsheet
Power Array
Boosted Performance Array
Horizon React
Simplifying the connection between Horizon and React by using higher order components.
Gpu.js
GPU Accelerated JavaScript
String Score
JavaScript string ranking 0 for no match upto 1 for perfect... "String".score("str"); //=> 0.825
Plottable
A library of modular chart components, built on D3
Sheetrock
Quickly connect to, query, and lazy-load data from Google Spreadsheets.
Crossfilter
Fast n-dimensional filtering and grouping of records.
Relay
Relay is a JavaScript framework for building data-driven React applications.
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!
jQuery Gantt
jQuery Gantt Chart
Sortable
Sortable — is a minimalist JavaScript library for reorderable drag-and-drop lists on modern browsers and touch devices. No jQuery. Supports Meteor, AngularJS, React and any CSS library, e.g. Bootstrap.