MobileLens – Mobile Simulator is a free Chrome add-on designed to help users simulate mobile browsing experiences directly from their desktop. This tool allows developers and QA testers to understand how websites will appear on various mobile devices, including popular models like the iPhone 15 Pro and Samsung Galaxy S24. Users can easily switch between predefined device profiles or create custom configurations to suit their testing needs.

The simulator effectively spoofs essential components such as the User-Agent string, Sec-CH-UA headers, and viewport dimensions to ensure that servers respond in the same way they would to actual mobile browsers. Additionally, it overrides JavaScript screen dimensions and touch events, allowing for authentic testing of responsive layouts and interactions. This makes MobileLens an invaluable tool for anyone looking to streamline their mobile testing process.