User Agent Parser
FreeParse user agent strings to detect browser and OS
Browser: Chrome 120.0 OS: Windows 10/11 Device: Desktop Engine: WebKit/Blink
About User Agent Parser
User agent strings are notoriously cryptic — a single line crams browser, version, engine, OS, and device into a format that's painful to read by eye. User Agent Parser takes that string and breaks it into clear fields, telling you the browser and version, operating system, and device type at a glance.
Paste a user agent string and the tool parses it and lays out the components in your browser. It is free, needs no account, and returns the breakdown instantly. Use it to decode entries in your server logs, to test how your own browser identifies itself, or to confirm what a client is actually sending when you're debugging device-specific behavior.
Common uses
- Decode an unfamiliar user agent string from your server access logs
- Confirm which browser and OS a bug report's user agent actually represents
- Check how your own or a test device identifies itself to your app
- Distinguish real browsers from bots or crawlers by inspecting the parsed details
How to use
- 1
Configure options
Set your preferences using the options panel below.
- 2
Click Generate
Click the process button to generate your result instantly.
- 3
Copy or download
Copy the result to clipboard or download it directly to your device.
Why ToolHub?
- Real-time results
- DNS, IP, speed checks
- No setup required
FAQ
Can it always identify the exact browser?
Usually, but user agent strings can be spoofed or use uncommon formats, so treat the result as a strong best-effort interpretation.
Does it detect bots and crawlers?
Many known bots include identifiable tokens in their strings, which the parser surfaces, though not every automated client is detectable.
Where do I find a user agent to test?
Your server logs, browser developer tools, or request headers all expose the user agent string you can paste in.
Can I use User Agent Parser on mobile?
Yes — ToolHub is fully responsive and works on iPhone, Android, tablets and all modern browsers. No app install needed.