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Description from extension meta
User-Agent Switcher by Semalt lets you change your User-Agent fast and view any site as if browsing from another browser or device.
Image from store
Description from store
User-Agent Switcher by Semalt lets you quickly and conveniently switch the User-Agent to view a site as if you were using another browser or device.
A User-Agent is a string your browser sends to a site in the HTTP header and via navigator.userAgent. Servers and scripts can use it to identify the browser and device type and, if needed, deliver different content or apply different rules.
With User-Agent Switcher by Semalt, you can easily switch—right inside Chrome and in just a few clicks—to built-in User-Agent profiles for various operating systems, browsers, search engines, devices, and more.
➋ Who can benefit from extension?
➣ Front-end engineers & QA — reproduce issues and test UA(User-Agent)-based redirects, polyfills, and responsive breakpoints without real devices.
➣ Technical SEO teams — check mobile/desktop parity, detect UA(User-Agent)-based cloaking, verify server rules that vary by User-Agent, quick spot-checks for Googlebot rendering (note: this doesn’t make requests from Google; it only changes the header).
➣ Product managers — validate rollouts or fallbacks for legacy browsers before launch.
➣ Customer support — quickly reproduce a user’s environment to triage bugs.
➣ Analytics/MarTech engineers — confirm tracking, tag firing, and AB test buckets that depend on User-Agent.
➣ AdOps/Monetization — verify ad tags and responsive placements under mobile/desktop User-Agents.
➣ Security/testing teams — assess allow/deny rules, WAF behavior, and rate-limit logic tied to User-Agent.
➣ Automation testers — run scripts that must declare a specific User-Agent for compatibility.
➌ How to install the extension?
It takes 5 (literally) seconds to install this extension in just several clicks:
- Click #1 — Hit the Add to Chrome button
- Click #2 — Add the extension
- Click #3 — Click the Extensions button next to your profile pic
- Click #4 — Pin User-Agent Switcher by Semalt to your toolbar by hitting the pushpin icon
And now it’s there.
➍ How to get started with extension?
Open the website for which you want to change the User-Agent, then left-click the User-Agent Switcher by Semalt icon in your Chrome extensions menu. Next, choose the desired User-Agent and apply it to:
a) only the current tab, or
b) all newly opened tabs.
➎ About Semalt
Semalt has been providing SEO analytics data and SEO services since 2013. We’ve helped over 600,000 businesses grow so far and are ready to help yours.
Learn more about Semalt at semalt.com/about.
➏ Privacy Policy
Your privacy means everything to us. User-Agent Switcher does NOT collect data on how you use Chrome, search, or navigate websites. It only uses the URL of the web page you enable it on, as well as additional elements associated with this page.
Learn more about Semalt’s Privacy Policy at semalt.com/privacy-policy.
➐ Support
If you have any questions, comments, or suggestions, contact us at [email protected] or go to our Support page - semalt.com/support.
Latest reviews
- (2025-09-09) Алексей Андрианов: I’ve tested many user-agent switcher extensions, but User-Agent Switcher by Semalt is by far the best. It has a huge variety of built-in profiles — operating systems, browsers, search engines, devices — everything you might need. Switching between them takes literally one click, and it works instantly without delays. What I like the most is that the extension is completely free, with no hidden restrictions or paid upgrades. Super simple, lightweight, and very convenient. Highly recommended!