Marilyn
Marilyn is a client side, Socket.IO driven, Pub/Sub, model layer with a query system similar to Mongoose.
Accounting.js
A lightweight JavaScript library for number, money and currency formatting - fully localisable, zero dependencies.
Tablecloth
A CSS and JS bootstrap to style and manipulate data tables
Morris.js
Pretty time-series line graphs
Line Chart
Awesome charts for AngularJS.
jQuery Gantt
jQuery Gantt Chart
Vague Time
A tiny JavaScript library that formats precise time differences as a vague/fuzzy time, e.g. '3 months ago', 'just now' or 'in 2 hours'.
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
Zangodb
MongoDB-like interface for HTML5 IndexedDB
Underscore.db
Pure JavaScript database based on Underscore for Node, node-webkit and the browser
Jquery Indexeddb
An IndexedDB Plugin for Jquery.
Power Array
Boosted Performance Array
Z.js
turns content (in)visible
Tfjs
A WebGL accelerated JavaScript library for training and deploying ML models.
Orb
Pivot table javascript library
C3
A D3-based reusable chart library