Identify Your Browser and OS
Every time you visit a website, your browser sends a "User Agent" string—a line of text identifying exactly what software and hardware you are using. Our tool instantly detects your User Agent and parses it to reveal the specific details your browser is broadcasting to the world.
Why User Agents Matter
Web developers and analytics tools rely heavily on this string for several crucial functions:
- Content Negotiation: Websites use the string to determine if they should serve you the Desktop or Mobile version of their layout.
- Feature Detection: Knowing the exact version of Safari or Chrome allows developers to serve older, compatible code to outdated browsers while serving modern code to new ones.
- Analytics & Tracking: Marketers use this data to understand device market share (e.g., iOS vs. Android). Note: This is also used in 'browser fingerprinting' for tracking.
How to Use This Tool
- Upload or Input Data: Select your file or paste your data directly into the tool interface. Everything remains on your device.
- Configure & Process: Adjust any optional settings if necessary. The tool will process your data instantly inside your browser.
- Download Result: Preview the output and click the download or copy button to save your final results.
Frequently Asked Questions
Why does my Chrome browser say it's Mozilla and Safari?
For historical compatibility reasons during the 'Browser Wars' of the 1990s and 2000s, almost all modern browsers start their string with `Mozilla/5.0` and claim to be Safari to ensure legacy websites don't block them.
Can I change my User Agent?
Yes! Web developers frequently change or 'spoof' their User Agent using browser Developer Tools to test how their website behaves on mobile devices.
Is the User Agent string being phased out?
Yes, due to privacy concerns regarding fingerprinting, Google Chrome is actively deprecating the full User Agent string in favor of 'Client Hints API', which shares less detailed information by default.