Submit

Browse every extension by category.

All categories

Start from the job you need done.

All use cases

Starter kits for the way you work.

All professions

Extensions that upgrade the sites you already use.

All websites

Side-by-side verdicts and honest alternatives.

All comparisons

Free, single-page tools. No sign-up, most run right in your browser.

Pomodoro TimerFocus and break timer that stays accurate in the background

All free tools

How-tos, safety explainers and data studies.

All guides

UA Switcher and Manager Chrome extension

UA Switcher and Manager lets you change the user-agent string your browser sends to websites, useful for testing how a site behaves on different devices or limiting what sites can infer about your setup. It's best for developers and testers. The catch: some sites still detect other signals beyond the user agent.

PriceFree
CategoryDeveloper Tools
Works inChrome, Edge, Brave (desktop)
✓No account needed

Last checked September 26, 2026 against the Chrome Web Store listing · Independent, not affiliated with Google

Add to Chrome See alternatives

Pros

free to install and use
lets you spoof the user-agent string per site or globally
useful for both testing and limiting site fingerprinting based on user agent
straightforward toggle-based interface

Cons

changing only the user agent doesn't fully prevent browser fingerprinting
listing name differs slightly from the current Chrome Web Store title, User-Agent Switcher and Manager

Best for

developers testing how a site responds to different device or browser user agents
users who want to reduce what websites learn from their user-agent string
QA testers checking mobile vs desktop site rendering
people troubleshooting sites that block certain browsers

Skip it if

users expecting full anonymity, since other signals besides the user agent can still identify a browser
people who need automatic, scheduled switching without manual setup

Key features

custom user-agent string spoofing
manage and switch between multiple saved user-agent profiles
helps control what device/browser information sites can read
simple toolbar-based switching

What UA Switcher and Manager does

UA Switcher and Manager changes the user-agent string your browser reports to websites, which sites use to decide what content or layout to serve. Spoofing this value lets you preview how a page renders for a different browser or device, and can limit what a site infers about your setup from that one signal.

Is UA Switcher and Manager safe?

The extension needs permission to modify request headers on pages you visit in order to swap the user-agent string. It's a common permission for this category of tool. Note that changing the user agent alone doesn't stop other forms of browser fingerprinting that don't rely on that header.

Featured in

Best user agent switcher Chrome extensions

Guides featuring UA Switcher and Manager

UA Switcher and Manager: FAQs

Is UA Switcher and Manager free?

Yes, it's free to install and use from the Chrome Web Store.

How do I use UA Switcher and Manager?

Install it, click the toolbar icon, choose or add a user-agent string, then reload the page to apply it.

What is UA Switcher and Manager Extension called in the Chrome Web Store now?

It's listed as User-Agent Switcher and Manager, describing the same user-agent spoofing tool.

Can I set a custom user-agent string?

Yes, you can add and manage custom user-agent strings in addition to any pre-set options.

Does changing the user agent make me anonymous?

No, it only changes one signal; sites can still use other fingerprinting methods to identify your browser.

What are alternatives to UA Switcher and Manager?

Other user-agent switcher extensions, including Advanced UA Switcher, offer similar spoofing with different interfaces.

Why would I want to change my user agent?

Common reasons include testing mobile vs desktop layouts, accessing a site that blocks certain browsers, or limiting what a site can read from that header.

Do I need to reload the page after switching?

Yes, reload the page after selecting a new user agent so the site requests content with the updated string.

Does UA Switcher and Manager work on all websites?

It applies to pages you visit generally, though some sites use additional checks beyond the user-agent header.

Can I save multiple user-agent profiles in UA Switcher and Manager?

Yes, it lets you manage and switch between several saved user-agent profiles rather than typing a new string each time. That's useful if you regularly test the same set of devices or browsers.