: Widely available on the Chrome Web Store and Firefox Add-ons , this extension is known for being lightweight (~150KiB) and offering automated rotation at specified intervals.
A is an essential tool for developers, privacy enthusiasts, and power users who need to mask their browser's "fingerprint" or test how websites behave across different devices . By spoofing your User-Agent (UA) string, you can make a desktop browser appear as a mobile device, a different operating system, or an older browser version. Top Random User Agent Switchers to Download download random user agent switcher
In 2026, several highly-rated extensions provide automated rotation and deep customization for various browsers: : Widely available on the Chrome Web Store
: A simple, official alternative for Chrome users who need basic switching between popular browsers like Safari, Firefox, and Internet Explorer. How to Download and Install Random User-Agent (Switcher) - Chrome Web Store Top Random User Agent Switchers to Download In
: A robust option for Chrome and Firefox that includes over 700 real-world UA strings. It supports "Client Hints" and can set different UAs for specific browser windows.