Bytelify

What Is My Browser

See your browser, OS, and version at a glance, along with screen size and language settings.

100% private, runs in your browser
Detecting…
Browser (best guess)
Detecting…
OS (best guess)
User agent string

Detecting…

Language
—
Cookies enabled
No
Online
Yes
Viewport size
— × —
Screen size
— × —

Read directly from your browser, nothing is sent to a server. Browser/OS/version detection is a best-effort guess from the user agent string, not a guarantee — some browsers send a generic user agent for privacy.

Need the opposite? Use What Is My User Agent

What is What Is My Browser?

A quick dashboard of what your browser reports about itself: browser name and version, operating system, language, viewport and screen size, cookie and online status — useful for quickly checking your setup when reporting a bug or comparing environments.

FAQ

It's a best-effort guess based on the user agent string's format. Some browsers deliberately send a generic or spoofed user agent for privacy, which can affect accuracy.

No — everything is read directly from your browser's own APIs (navigator, window.screen) and displayed locally. Nothing is sent anywhere.