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User-Agent Switcher Chrome extension

This User-Agent Switcher swaps your reported browser identity for another popular device or browser string via a toolbar popup, aimed at quick manual testing rather than automation. It's best for people who want a lightweight, one-click switcher. The catch: switching happens per action, not automatically per site rule.

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

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Pros

free to use
simple toolbar popup interface
covers popular device and browser user-agent presets
no account required

Cons

requests broad host permissions to rewrite headers on sites you visit
manual switching only, no automatic per-site rules apparent from the listing
changes only the user-agent string, not other fingerprint signals

Best for

quickly testing a page under a different browser string
spot-checking mobile vs desktop user-agent behavior
developers who want a simple toolbar popup switcher
occasional manual user-agent changes

Skip it if

users who need automated per-domain user-agent rules
anyone wanting full browser fingerprint anonymization

Key features

toolbar popup for switching user-agent strings
preset list of popular device and browser identities
context menu access
works across sites via host permissions

What this User-Agent Switcher does

This extension opens a toolbar popup where you pick from a list of popular device and browser user-agent strings, then applies your choice to the current tab. It's built for quick manual checks, such as seeing how a page looks or behaves when it thinks you're on a different browser or device.

Is it safe to use?

The extension requests tabs, storage, scripting, webRequest, contextMenus, and host permissions across sites, which it needs to detect the page and rewrite the outgoing user-agent header. It does not change your IP address or other fingerprinting details on its own.

Featured in

Best user agent switcher Chrome extensions

User-Agent Switcher: FAQs

Is User-Agent Switcher free?

Yes, it's free to install and use, with no listed paid tier.

Is User-Agent Switcher safe to use?

It requests broad host permissions to rewrite the user-agent header, which is normal for this type of tool, but it doesn't anonymize your IP or other fingerprint signals.

How do I use this User-Agent Switcher?

Click the toolbar icon, pick a device or browser string from the popup, then reload the page to apply it.

What are alternatives to this extension?

Other user-agent spoofing extensions and a browser's built-in device toolbar in developer tools offer similar testing.

Does it switch the user-agent automatically per site?

The listing describes a manual toolbar popup switcher rather than automatic per-domain rules.

Why does it need access to all sites?

It needs host permissions to intercept and rewrite the user-agent header before a page loads.

Does changing my user-agent hide my identity?

No, it only changes the reported browser string; your IP address and other signals stay the same.

Can I pick a mobile device user-agent?

Yes, the preset list includes popular mobile device strings alongside desktop browsers.

Will sites detect a spoofed user-agent?

Some sites use extra fingerprinting checks beyond the user-agent string and may still notice a mismatch.

Can I switch user agents from a right-click menu instead of the toolbar popup?

Yes, alongside the toolbar popup, this User-Agent Switcher also offers context menu access, giving you a second way to pick a device or browser string without opening the popup first.