Boosted Performance Array
Alchemy.js is a graph drawing application built in d3.
Tabletop.js gives spreadsheets legs
PouchDB is a pocket-sized database.
A localStorage polyfill
Marilyn is a client side, Socket.IO driven, Pub/Sub, model layer with a query system similar to Mongoose.
Offline storage, improved. Wraps IndexedDB, WebSQL, or localStorage using a simple but powerful API.
A JQuery plugin to create AJAX based CRUD tables.
An HTML5 saveAs() FileSaver implementation
A general purpose, real-time visualization library.
Quickly connect to, query, and lazy-load data from Google Spreadsheets.