What Is My User Agent? (Browser, OS & Device Specs)
Inspect your browser User-Agent string, rendering engine, operating system build, and device hardware specifications with one click.
Detecting Browser & OS...
Detecting device type...
How to Use This Tool – User Agent Checker
Open Tool
Your current browser automatically reveals its client User-Agent string.
Inspect Parsed Specs
Examine browser engine, version, operating system, device family, and architecture.
Test Custom User-Agents
Optionally paste any custom User-Agent to decode its details.
Key Features & Capabilities – User Agent Checker
Comprehensive Hardware & OS Detection
Detects Windows, macOS, iOS, Android, Linux, architecture (x86/ARM), and release build.
Browser Engine & Features
Identifies Chromium, WebKit, Gecko, Blink, rendering engine, and browser version.
Screen & Viewport Dimensions
Shows current screen resolution, device pixel ratio (Retina), and viewport size.
One-Click String Copy
Quickly copy the exact User-Agent string for developer debugging and bug reports.
Frequently Asked Questions
What is a User-Agent string?
Can I analyze a custom User-Agent from a server log?
Why does my Chrome User-Agent mention Safari and Mozilla?
Is my browsing history tracked?
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