What it is good for
Quick QA checks, reproducing browser-specific issues, and verifying how a browser-side switch affects the string exposed to pages.
Browser extension
Download the Random User Agent extension
Install the extension from the Chrome Web Store, then use this site to verify what your browser exposes after you switch user agents.
What to do after install
Pin the extension, choose a user agent there, then refresh the checker page on this site to confirm that the visible string changed.
What it does not guarantee
Changing a user agent string does not make a browser truly identical to another browser. Sites may still rely on features, Client Hints, and fingerprinting signals.
Suggested workflow
- Install the extension from the Chrome Web Store.
- Pin it to your browser toolbar so the current profile is easy to change.
- Select the user agent you want to test.
- Refresh Check My User Agent and confirm the value shown there.
Before you rely on the result
- Some websites combine user agents with Client Hints or feature detection.
- Changing the string does not change the underlying browser engine.
- For reliable QA, verify both the visible string and the behavior you actually care about.
How do I check whether the extension worked?
Use the checker page on this site. It shows the current browser-side user agent and lets you copy the raw string after the extension changes it.
Does switching the user agent make Chrome become Safari or Firefox?
No. It changes the presented identification string, but the browser engine and real feature support remain those of your installed browser.
Can I use the extension together with the bulk generator?
Yes. The generator gives you sample strings for fixtures and examples, while the extension changes the browser-side string your session exposes.