Get detailed information about your browser, operating system and device. A tool for web developers and testers.
Shows the current User-Agent, including the type of operating system, browser version, and platform.
Allows web developers to check how websites adapt to different devices and browsers.
Works on Windows, macOS, Linux, or mobile devices. Shows whether the browser uses WebKit, Blink, or Gecko.
The User-Agent Checker analyzes a User-Agent string and identifies information about the browser, operating system, device, and browser engine.
The tool helps you:
identify the browser and its version
determine the device's operating system
identify the device type
detect the browser engine
verify the correctness of a User-Agent string
Suitable for web development, QA, system administration, log analysis, and website compatibility testing.
After analyzing the User-Agent string, the tool displays information about the client.
Parameter | Description |
|---|---|
Device Type | Desktop, Mobile, or Tablet |
Browser | Browser name |
Browser Version | Installed browser version |
Browser Engine | For example, Blink, Gecko, or WebKit |
Operating System | Windows, macOS, Linux, Android, iOS, etc. |
OS Version | Detected operating system version |
A User-Agent is a string that a browser or another application sends to a web server with every HTTP request.
For example:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36Based on this string, websites can identify client characteristics and adapt their behavior accordingly.
Engine | Used By |
|---|---|
Blink | Google Chrome, Microsoft Edge, Opera, Brave, and other Chromium-based browsers |
Gecko | Mozilla Firefox |
WebKit | Safari |
Trident | Internet Explorer (deprecated) |
A User-Agent is not a reliable method of identifying a user or device. It can be modified manually, changed through browser emulation, or spoofed programmatically.
The User Agent detection tool shows information about your browser, operating system, and device. User Agent helps web developers test website responsiveness and ensure cross-browser compatibility.
The tool analyzes HTTP request headers and displays detailed information about the user environment. This is useful for diagnosing web application performance, configuring servers, and identifying content display issues.
The service is relevant for developers, testers, and system administrators working with browser settings and user data analysis.
User agent strings contain browser name and version, operating system, device type, rendering engine, and sometimes additional software information. This helps websites deliver an optimized experience.
Websites use user agent information to deliver appropriate content, detect mobile devices, ensure compatibility, provide browser-specific features, and optimize the user experience.
Yes, browsers and extensions allow you to modify the user agent. This is useful for testing websites, accessing mobile versions, or for privacy reasons, but it can disrupt some website functionality.
User agents can contribute to browser fingerprinting, potentially identifying users across different websites. Modern browsers are working to reduce user agent information to protect privacy.
You can temporarily change the user agent string in your browser settings and test how the site responds across different devices and browsers. This allows you to ensure that the mobile and desktop versions are working correctly.
Browser fingerprinting is a method that collects various pieces of information about the browser (including user agent, plugins, fonts, language settings, etc.) to create a unique user profile, allowing tracking without using cookies.
Browsers like Chrome are implementing the 'User-Agent Client Hints' initiative to reduce the amount of user agent information sent by default, aiming to enhance user privacy while allowing websites to request only necessary information.
While the user agent string typically doesn't include language, the 'Accept-Language' header sent by the browser actually indicates the user's preferred languages, allowing websites to deliver localized content.