jStorage is a simple wrapper plugin for Prototype, MooTools and jQuery to cache data (string, numbers, objects, even XML nodes) on browser side. Note that functions, DOM nodes, host objects and such can not be saved.jStorage was first developed under the name of DOMCached but since a lot of features were dropped to make it simpler (like the support for namespaces and such) it was renamed. DOMCached had separate files for working with Prototype and jQuery but jStorage can handle both in one go.
jStorage makes use of HTML5 local storage where available and userData behavior in Internet Explorer older versions. Webkit SQLite is not supported.
