Lawnchair
a lawnchair is sorta like a couch except smaller and outside. perfect for html5 mobile apps that need a lightweight, adaptive, simple and elegant persistence solution.
PouchDB
The Database that Syncs! PouchDB is an open-source JavaScript database inspired by Apache CouchDB that is designed to run well ...
JSON ODM
Object document mapper for JSON data that provides mongodb methods for querying and transformation as well as additional joini ...
TaffyDB
The JavaScript Database An opensouce library that brings database features into your JavaScript applications.