With Bowser you can get browser information, device information (mobile/tablet), OS information (MAC, Windows, linux, iOS, Android, WindowsPhone etc.)
Store.js is a localStorage wrapper for all browsers without using cookies or flash. Uses localStorage, globalStorage, and userData behavior under the hood.
It has a plugin-based architecture, first-class support for resumable uploads according to the open standard: tus, and custom encoding backends, making it extensible and robust.
With this library, it’s simple to build progressively enhanced experiences that use feature detection to determine if a code can be executed in the user’s browser.
PgwModal is a Browser & OS / platform detection plugin for jQuery.