store.js : localStorage wrapper for all browsers without using cookies or flash. Uses localStorage, globalStorage, and userData behavior under the hood.
sw-toolbox : A collection of service worker tools for offlining runtime requests
OpenKeyval : OpenKeyval is a completely open key-value data store, exposed as a drop-dead simple web service. The goal is to make this a very easy way to persist d...
Workbox : JavaScript Libraries for adding offline support to web apps.
PouchDB is a JavaScript library that allows you to store and query data for web applications that need to work offline, and sync with an online database when you are online.