ImmortalDB
A relentless key-value store for the browser
...For example, clearing cookies is a common user action, even for non-technical users. And browsers unceremoniously delete IndexedDB, LocalStorage, and/or SessionStorage without warning under storage pressure. ImmortalDB is resilient in the face of such events. Doesn't vandalize performance or the user experience. For example, Evercookie's CSS History Knocking can beget a deluge of background HTTP requests, and loading Silverlight or Flash can raise unsought permission modals or thrash the user's disk. Doesn't use nefarious exploits nor deprecated third party plugins like Flash, Silverlight, or Java. ...