1. Paste a User-Agent
Enter a user-agent string or click Use My UA to fill in your browser's string.
User Agent Parser
Output
Note
Tools:
UA Parser
User Agent Parser
Processing...
Input
Output
User Agent Parser is a free browser-based developer utility by ToolPix. All formatting, validation, and encoding tasks run 100% locally in client-side memory via JavaScript and WebAssembly — your source code, tokens, and data are never uploaded or stored on any server.
Quick Steps
2. Click Parse
Click Parse to extract browser, OS, device, and engine information.
3. Review the Output
View each detected component on its own line in the output panel.
FAQ
What does a user-agent string contain?
A user-agent string identifies the browser, operating system, device type, and rendering engine to the web server.
How accurate is the detection?
The parser uses standard regex patterns to detect common browsers, OS versions, and engines. Edge cases may exist for very new or obscure browsers.
Can I use my own browser's user-agent?
Yes. Click the Use My UA button to automatically fill in your current browser's user-agent string.
Is my data sent to a server?
No. All parsing is done locally in your browser. Nothing is transmitted.
Is this tool free?
Yes, completely free with no usage limits or sign-up required.
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