Instantly View Your Browser’s User Agent String

If you're a web developer, QA tester, or just someone trying to figure out why a website isn't working properly, you’ve likely encountered the term user agent. But what exactly is it?

Your browser's user agent string is a line of text automatically sent to websites whenever you visit them. It contains key details about your browser type, version, operating system, device, and rendering engine — all of which can impact how websites display content.

Our User Agent Finder makes it incredibly easy to view this information instantly, right in your browser — no copy-pasting, no command-line tools, just one click.

What is a User Agent String?

A user agent string identifies your browser and operating environment to the websites you visit. It typically includes information like:

• Browser name (e.g., Chrome, Firefox, Safari)
• Browser version
• Operating system (Windows, macOS, Linux, Android, iOS)
• Device type (Desktop, Mobile, Tablet)
• Rendering engine (e.g., Blink, WebKit, Gecko)

Example:

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Why Use a User Agent Finder?

There are many practical reasons to check your user agent string:

• Debug browser-specific issues
• Test how websites behave with different user agents
• Diagnose mobile vs. desktop rendering
• Detect bots or fake user agents
• Help support teams replicate your browsing environment

If a website isn't loading properly or behaves differently on your device, sharing your user agent string can help developers pinpoint the issue.

Features of Our Free User Agent Finder

• Instant Output: View your user agent string as soon as the page loads.
• No Signup Needed: 100% free to use, no forms or logins required.
• Accurate Detection: Displays the raw string your browser sends.
• Lightweight and Fast: Loads quickly on all modern browsers and devices.
• Developer-Friendly: Copy your user agent string with one click.

Use Cases for Developers & Testers

Web developers often tailor site functionality based on the visitor’s user agent. This is common when:

• Serving different stylesheets or scripts to mobile vs. desktop users
• Redirecting users based on device type
• Identifying bots or crawlers for analytics filtering
• Diagnosing browser-specific rendering bugs

With our User Agent Finder, developers and QA teams can quickly confirm what the browser is reporting — helping streamline debugging and cross-browser compatibility checks.

What About Spoofed or Custom User Agents?

Some browser extensions, bots, and privacy tools can spoof or override the user agent string. Our tool shows the exact string your browser is sending right now — whether it's default or customized. This is great for testing how your site responds to altered user agents or bot simulations.

How to Use the User Agent Finder Tool

1. Visit the User Agent Finder tool page
2. Your user agent string will be displayed automatically
3. Copy it to your clipboard with a single click
4. Paste it wherever needed — support tickets, debugging sessions, or testing scripts

It’s that simple.