My User Agent
See the user-agent string your browser exposes, with a clear readout of your browser, operating system, device, and client-visible request signals.
Detected locally. Nothing is uploaded for analysis.
Current browser
Detecting…
Reading local signals
Waiting for browser JavaScript…
Client-visible signals
What your browser exposes
These values come from browser APIs. They often influence request headers, but JavaScript cannot inspect the final navigation headers exactly as they cross the network.
DetectingBrowser JavaScriptReading client-visible values…
Browser environment
More signals available to websites
Random UA generator
Need a sample user agent?
Generate a representative desktop or mobile UA for testing parsers, logs, and compatibility rules. A user agent alone does not reproduce a complete browser fingerprint.
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36
User agent checker FAQ
Useful context for your result
What is my user agent? +
Your user agent is a browser-controlled identifier that usually describes the browser family, operating system, device class, and rendering engine used for a request.
Can a website see my exact browser and device? +
A website can inspect the user-agent string and other browser signals, but modern browsers may reduce or generalize some values. The result is useful for compatibility checks, not guaranteed device identification.
Can JavaScript see every request header? +
No. JavaScript can read values exposed by browser APIs, but it cannot inspect the exact header block the browser sends for a page navigation. This checker labels exposed values separately from the likely header names they influence.
Does this checker store my user agent? +
No. Detection and parsing happen locally in your browser. The page does not need to upload your user-agent string to analyze it.
Debugging a browser request?
Inspect status codes, request timing, and recorded headers locally with the HAR Analyzer.