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Advanced UA Switcher Chrome extension

Advanced UA Switcher changes the user-agent string your browser sends, with a choice of a custom string or a pre-defined list. It's best for developers testing site behavior across devices and browsers. The catch: it states it doesn't collect personal data, but you should still review the linked privacy policy before relying on that claim.

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

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

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Pros

  • offers both custom and pre-defined user-agent string options
  • states it does not collect or transmit personally identifiable information
  • documentation is linked directly from the listing
  • free to install

Cons

  • changing the user agent alone doesn't prevent all forms of fingerprinting
  • current Chrome Web Store title is Advanced User Agent Switcher, slightly different from the extension's common name
  • detailed setup documentation lives on an external site rather than in the extension itself

Best for

  • developers checking how sites render for different browsers or devices
  • users who want to switch between custom and pre-defined user-agent strings
  • QA testers verifying mobile vs desktop behavior
  • people troubleshooting browser-based content restrictions

Skip it if

  • users needing full anonymity beyond just the user-agent header
  • people who want automatic per-site rules without configuring a custom string

Key features

  • custom user-agent string entry
  • pre-defined user-agent string list
  • documentation hosted at kodemuse.dev
  • privacy notice stating no personal data is collected or transmitted

What Advanced UA Switcher does

Advanced UA Switcher changes the user-agent string your browser sends to websites, giving you two options: type in a custom string or pick from a pre-defined list. This is useful for checking how a page behaves for a different browser or device without switching machines.

Is Advanced UA Switcher safe?

The listing states the software neither collects nor transmits personally identifiable information and does not track browsing behavior, storing what it needs locally on the user's device. It links to a full privacy policy and terms of service at kodemuse.dev for details.

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Advanced UA Switcher: FAQs

Is Advanced UA Switcher free to install?

Yes. The store lists it as free, with no paid tier described.

How do I set a custom user agent in Advanced UA Switcher?

Click the toolbar icon and either enter your own string or pick one from the pre-defined list, as the listing describes. Reload the page after either.

Why is it called Advanced User Agent Switcher in the store?

The store title is Advanced User Agent Switcher, the same tool referred to as Advanced UA Switcher. Search either name or use its extension ID.

What does the developer say about data collection?

The listing says it does not collect or transmit personally identifiable information or track browsing, and stores what it needs locally. The privacy policy at kodemuse.dev has the full text.

Where is the documentation?

The listing links to documentation at kodemuse.dev/advanced-user-agent-switcher, which is outside the extension.

How does it differ from the plain User-Agent Switcher?

Advanced UA Switcher states both custom and pre-defined strings. The plain User-Agent Switcher listing only describes spoofing presets.

Does swapping my user agent with this tool make me anonymous?

No. Only the user-agent header changes. Your IP address and other fingerprint signals stay as they were, so sites can still tell things about your browser.

When does a new user-agent string actually take effect?

On the next request. Reload the open page so it is fetched with the new string; pages already loaded keep whatever the old one produced.

Can it use different user agents for different websites automatically?

The listing describes applying a string across all websites and mentions no per-site rules. Switch manually when moving between sites.

Is it a good fit for mobile-versus-desktop testing?

Yes for a quick check, using a mobile string from the pre-defined list. Viewport size will not change, so combine it with DevTools device mode.

Which sites might not respond to a changed user agent?

Sites that detect devices by viewport or scripts may ignore the header. Others might show a login check when the string changes.

Are there alternatives?

UA Switcher and Manager and User-Agent Switcher are the closest, and DevTools can override the user agent too.