User Agent String Parser

What Is a User-Agent String?

A User-Agent string is a text value that a browser or client sends with HTTP requests to identify itself. It can contain information about the browser, operating system, and compatibility features.

User-Agent strings are commonly used for browser compatibility testing, website troubleshooting, analytics, and understanding how different clients access web applications. However, they do not always provide reliable proof of a user's actual device or operating system.

How to Use the User Agent String Parser

1. Find a User-Agent string: Copy the string from your browser's developer tools, a request header, or a testing environment.

2. Enter the string: Paste the complete User-Agent string into the input field.

3. Click Parse: The tool analyzes the supplied string and identifies the details it can recognize.

4. Review the results: Check the detected browser, version, operating system, device type, and other information provided by the parser.

User Agent String Parser Example

The following example demonstrates how a common desktop Chrome User-Agent string can be interpreted.

Output:

1. Browser: Google Chrome (Version 120.0.0.0)

2. Rendering Engine: Blink

3. Operating System: Windows 10

4. Device Type: Desktop / PC

5. Architecture: 64-bit

These results illustrate common interpretations of the supplied string. The exact fields and formatting depend on the parser's implementation.

Why Use an Online User-Agent Parser?

• Browser compatibility testing: Understand browser information when troubleshooting website behavior.

• Technical debugging: Inspect User-Agent strings found in HTTP requests and server logs.

• Quality assurance: Help investigate browser-specific issues during website testing.

• SEO and analytics checks: Examine client information when diagnosing technical website behavior.