User-Agent Utility

Parse, analyze, and generate User-Agent strings.

Runs in your browser — your data never leaves your device

User-Agent String

Parse any User-Agent string to extract browser, operating system, engine, and device details. Generate realistic User-Agent strings for testing web applications across different platforms and browsers.

What is a User-Agent String?

A User-Agent string is a text identifier that web browsers send with every HTTP request to describe their capabilities to the server. It contains information about the browser name and version, the operating system, rendering engine, and device type. Web servers use this information for content negotiation, analytics, and serving optimized versions of pages for different browsers and devices.

Parsing vs Generating

The parser extracts structured information from a User-Agent string, breaking it into browser, OS, engine, and device components. This is useful for analytics, bot detection, and conditional feature delivery. The generator creates realistic User-Agent strings for load testing, web scraping simulation, and browser compatibility testing without needing to manually construct the complex string format.

Frequently Asked Questions

What is a User-Agent parser?

A User-Agent parser breaks down the User-Agent string sent by web browsers into structured data, revealing the browser name, version, operating system, and device type.

How do I parse a User-Agent string?

Paste a User-Agent string into the input field and the tool parses it, displaying the browser, version, OS, platform, and device information in a structured format.

Can I generate User-Agent strings?

Yes, the tool can generate User-Agent strings for various browsers and devices, useful for testing, web scraping, and simulating different client environments.

What is a User-Agent string?

A User-Agent string is an HTTP header sent by browsers and clients that identifies the software, version, and operating system to the web server for content optimization.

Is this tool free?

Yes, ToolDock's User-Agent parser is completely free, requires no signup, and runs entirely in your browser.

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What is a User-Agent String?

Parsing vs Generating

Frequently Asked Questions

What is a User-Agent parser?

How do I parse a User-Agent string?

Can I generate User-Agent strings?

What is a User-Agent string?

Is this tool free?

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What is a User-Agent String?

Parsing vs Generating