What browser am I using?
Your browser, its exact version and whether it is up to date, your operating system, and the basics every website can read.
Reading your browser…
Current browser versions
Chrome 154 (154.0.8037.58 on Windows), Edge 154 (154.0.4258.37) and Firefox 156 (156.0.1), from each maker's release feed, checked every six hours. Chrome 155 is due on 2026-10-06.
FAQ
What browser am I using?
The panel above says it: the browser, its exact version, and whether that is the current release. It reads what your browser reports about itself, the same way any website can.
How do I know if my browser is up to date?
The page compares your version with the current release from the maker's own feed: Chromium Dash for Chrome (and Brave, which follows Chrome's version), Microsoft's update feed for Edge, and Mozilla's for Firefox. In most browsers, opening the About page (for example chrome://settings/help) checks and installs the update; a restart finishes it.
Why does my browser say Chrome when I use Brave (or Edge)?
Browsers built on Chromium share Chrome's User-Agent format, and Brave's string is identical to Chrome's. The page names the browser from its Client Hints brand list instead, where Brave, Edge and Opera each list their own name.
Why does it say Windows 11 when my user agent says Windows NT 10.0?
Chrome and Edge freeze the operating system in the User-Agent string, and every Windows version reports 10.0 there. The real version comes from the Sec-CH-UA-Platform-Version Client Hint, which this page reads; 13 and higher means Windows 11.
What can a website learn about my browser?
Everything on this page, and much more: installed fonts, graphics card, how your hardware draws a canvas, audio processing, and dozens of engine details. The browser fingerprint test shows what those signals say about your browser, and whether they agree with each other.
Related free tools
What is my user agent?
Your User-Agent and Client Hints, and whether they agree with each other.
What is my screen resolution?
Screen, scaling, window and viewport sizes, as websites read them.
WebRTC leak test
Whether WebRTC reveals a different IP, and whether your time zone fits your IP.
Browser fingerprint test
A few hundred coherence checks on the browser you open it in.
Clearcote puts this into practice
An open-source Chromium with fingerprint control compiled into the engine. A drop-in for Playwright & Puppeteer.
Free for one browser with GitHub. No card.