store.js - LocalStorage wrapper for all browsers without using cookies or flash. Uses localStorage, globalStorage, and userData behavior under the hood.
localForage - Offline storage, improved. Wraps IndexedDB, WebSQL, or localStorage using a simple but powerful API.
jStorage - jStorage is a simple key/value database to store data on browser side.
cross-storage - Cross domain local storage, with permissions.
basket.js - A script and resource loader for caching & loading scripts with localStorage.
bag.js - A caching script and resource loader, similar to basket.js, but with additional k/v interface and localStorage / websql / indexedDB support.
basil.js - The missing JavaScript smart persistent layer.
jquery-cookie - A simple, lightweight jQuery plugin for reading, writing and deleting cookies.
js-cookie - A simple, lightweight JavaScript API for handling browser cookies.
Cookies - JavaScript Client-Side Cookie Manipulation Library.