What Is a Browser Information & User Agent Viewer?
This tool reads and displays real data your browser exposes about itself: its name, the operating system
it's detected running on, your language settings, cookie and tracking preferences, and the complete raw
"user agent" string it sends with every web request. Every value shown comes directly from standard
navigator properties - nothing is looked up from an external database or guessed.
How to Use the Browser Information & User Agent Viewer
- Load this page - every value populates automatically from your current session.
- Check "Browser" and "Detected OS" for a readable summary of what your browser reports.
- Review the raw User Agent string at the bottom for the complete, unprocessed value.
- Click "Copy User Agent" to copy the full string, useful for bug reports or support tickets.
How It Works
The raw user agent string comes directly from navigator.userAgent, exactly as your browser
sends it. This tool parses that string using pattern matching to identify common browser and OS signatures -
the same general approach many websites use to detect browser type - and displays the readable summary
alongside the untouched raw string so you can see both. Cookie status, online status, language, and Do Not
Track preference are each read from their own dedicated navigator properties.
Understanding Your Results
- Browser and OS detection match what you're actually using - your browser's user agent string is standard and being parsed correctly.
- Detected browser shows "Unknown / Other" - can happen with less common browsers, or browsers that have modified their user agent string for privacy reasons.
- "Do Not Track" shows "Not set" - very common; most modern browsers have deprecated this signal in favor of other privacy controls, so an unset value doesn't indicate anything unusual.
- Cookies show "No" - you or your browser's privacy settings have disabled cookies, which can affect how some websites function, including login persistence.
Browser Limitations
Many modern browsers have started reducing the detail in their user agent strings for privacy reasons - a practice sometimes called "user agent reduction" or "user agent freezing" - meaning the raw string alone increasingly provides less granular version information than it once did. This tool reports exactly what your browser currently sends; it can't recover detail your browser has intentionally chosen to withhold.
Common Mistakes to Avoid
- Assuming the user agent string is always fully accurate - some browsers and extensions allow spoofing a different user agent for testing or privacy purposes.
- Relying on Do Not Track as a meaningful privacy signal - most major browsers have removed or deprecated it, and even where sent, websites aren't obligated to honor it.
- Confusing "Online Status" with actual internet connectivity quality - this reflects whether your OS reports a network connection, not necessarily whether that connection is fast or stable.
Frequently Asked Questions
Why might my detected browser be wrong?
Some browsers include other browsers' names in their user agent string for compatibility reasons - for example, most browsers include "Safari" even when they aren't Safari - which can occasionally cause simple pattern-based detection to misidentify less common browsers.
Is my user agent string sent to a server by this tool?
No, everything is read and parsed entirely within your browser - nothing is transmitted anywhere by this specific test.
Why does the user agent string look so long and technical?
User agent strings historically accumulated many compatibility tokens over decades of web history, as each browser added references to older browsers to avoid being blocked by outdated website checks.
What does "Do Not Track" actually do?
It's a voluntary signal some browsers can send requesting that websites not track your activity; however, it's largely deprecated now and websites aren't required to honor it even when sent.
Can websites see more about my browser than what's shown here?
Yes, this tool only shows a subset of commonly available data; websites can also access other signals like screen resolution, installed fonts (indirectly), and timezone, some of which have their own dedicated tools on this site.
Conclusion
Whether you're filing a bug report, troubleshooting a compatibility issue, or just curious what your browser reveals about itself, this gives you the real, complete picture straight from your own session. For a deeper look at which specific web APIs your browser supports, check the Browser Feature Detection tool.