A Developer's Guide to the User-Agent Generator & Parser

The User-Agent Generator & Parser is a two-in-one tool for developers and testers who need to work with User-Agent (UA) strings. It helps you create realistic UA strings for testing how your website appears on different devices and browsers, and it can also parse existing UA strings to identify the client.

Generator Features

• Customizable Generation: Build a User-Agent string by selecting from a list of common:
  • Browsers (Chrome, Firefox, Safari, Edge)
  • Operating Systems (Windows, macOS, Linux, Android, iOS)
  • Devices (Desktop, Mobile, Tablet)
• Randomization: A "Random" button instantly selects a random combination of browser, OS, and device, giving you a wide variety of test data with a single click.

Parser Features

• UA Deconstruction: Paste any User-Agent string, and the tool will perform a basic analysis to identify the likely browser, operating system, and device type.
• Clear Display: The parsed components are displayed in easy-to-read cards.

How to Use

Generator

1. Select the "Generator" Tab.
2. Choose Components: Use the dropdown menus to select your desired Browser, Operating System, and Device.
3. View the Result: The "Generated User-Agent" field will update in real-time with the string created from your selections.
4. Copy or Randomize: Use the buttons to copy the generated string or to create a new random one.

Parser

1. Select the "Parser" Tab.
2. Paste a User-Agent: Enter the full User-Agent string you want to analyze into the text area.
3. View the Analysis: The cards below will instantly update with the parsed information about the browser, OS, and device.