What Is My Browser?

What Is My Browser is a free online tool that instantly detects your web browser and displays important information such as browser name, version, user agent, rendering engine, operating system, and platform. It's perfect for troubleshooting, web development, and compatibility testing.

What is a headless browser?

A headless browser is a web browser that runs without a graphical user interface (GUI). It can load websites, execute JavaScript, submit forms, click buttons, and interact with web pages just like a normal browser, but it does not display anything on a screen.

Simple Example

When you open a website in a normal browser like Google Chrome, you can see the page, images, and buttons.

A headless browser does the same work behind the scenes, but there is no visible browser window.

Common Headless Browsers

• Headless Chrome
• Playwright
• Puppeteer
• Selenium
• Firefox Headless

What Is a Headless Browser Used For?

1. Web Scraping

Automatically collect data from websites.

Example:

• Extract product prices
• Gather search results
• Monitor website content

2. Automated Testing

Developers use headless browsers to test websites automatically without opening a browser window.

3. SEO Auditing

Many SEO tools use headless browsers to:

• Render JavaScript websites
• Check page speed
• Analyze Core Web Vitals
• Verify indexing issues

4. Screenshot & PDF Generation

Generate webpage screenshots or PDFs automatically.

5. Bot Automation

Automate repetitive browser tasks such as:

• Form submission
• Login workflows
• Data extraction

Recommended Tool: My IP Address

What is my browser agent?

Your browser agent, also called a user agent, is a small piece of information that your web browser sends to every website you visit. It helps websites identify your browser, operating system, and device so they can display content correctly.

A browser agent typically includes details such as your browser name (like Chrome, Firefox, Edge, or Safari), browser version, operating system (Windows, macOS, Android, or iOS), and device type. Some user agents also include information about the browser's rendering engine, which is responsible for displaying web pages.

Websites use your browser agent for many purposes. For example, they can optimize layouts for mobile or desktop devices, ensure compatibility with specific browser versions, and provide features that work best with your browser. Developers also use browser agent data to troubleshoot issues and test website performance across different platforms.

Although your browser agent contains useful technical information, it does not include personal details such as your name, email address, or passwords. However, it can still be used as part of a browser fingerprint when combined with other device information.

Our What Is My Browser tool makes it easy to view your browser agent instantly. It displays your browser name, version, user agent string, operating system, rendering engine, and other useful browser details. This information is especially helpful for developers, IT professionals, and anyone troubleshooting browser-related issues or checking website compatibility.