User Agent Parser

What is a User Agent String?

A User Agent string is a text identifier that your browser or device automatically sends to websites. It helps servers understand details about your browser name and version, operating system, device type, platform, rendering engine and more. Each browser—Chrome, Firefox, Safari, Edge—and each device—Android, iPhone, Windows, macOS—has a unique User Agent format. Developers, analysts, and security teams use this information for debugging, optimization, analytics, and cybersecurity checks.

Modern websites rely heavily on User Agent data to deliver the right layout, detect compatibility issues, and identify suspicious traffic such as crawlers, bots, or spoofed clients. Therefore, parsing a User Agent string accurately is essential for both performance and security.

Why Use a User Agent Parser?

A User Agent Parser tool helps you read and decode complex User Agent strings into clean, structured information. Whether you're a developer, SEO expert, tester, or cybersecurity analyst, this tool is extremely useful for:

• Detecting browser names, versions, and compatibility issues
• Identifying the visitor's operating system and OS version
• Recognizing device types (desktop, mobile, tablet, smart TV)
• Debugging unknown devices, platforms, or rendering engines
• Improving analytics accuracy for user segmentation
• Spotting suspicious or spoofed User Agent strings
• Testing redirection logic or device-targeted content
• Supporting cybersecurity forensics and fraud detection

With ToolNexIn’s free User Agent Parser, you can decode any User Agent instantly and extract meaningful information with just one click. No signup, no limits, no tracking.

How to Use This User Agent Parser Tool

Using this tool is simple and beginner-friendly. Just follow these steps:

• Paste any User Agent string into the input box
• Or use the automatically detected User Agent from your browser
• Click the Parse User Agent button
• View extracted details like browser, OS, version, platform, engine, and device type

Our tool delivers structured output including:

• Browser Name & Version (Chrome 122, Firefox 115, Safari 17, etc.)
• Operating System (Windows, macOS, Android, iOS, Linux)
• Device Type (desktop, mobile, tablet, bot/crawler)
• Rendering Engine (Blink, WebKit, Gecko, Trident)
• Platform/Architecture (32-bit, 64-bit, ARM, Intel)

How to Manually Find Your User Agent

If you want to locate your User Agent manually, here are quick steps for each browser:

• Google Chrome: Press Ctrl + Shift + I → Open Network tab → Reload → Click any request → Under Headers, look for User-Agent.
• Mozilla Firefox: Press Ctrl + Shift + I → Go to Network tab → Reload → Click any request → Check User-Agent.
• Safari (macOS): Enable Developer Mode → Open Develop menu → Click Show Web Inspector → Open Network tab → Inspect headers.
• Microsoft Edge: Same steps as Chrome → Open DevTools → Go to Network tab → Reload request headers.
• Command Line: Use curl -I https://example.com or wget with flags to view your User Agent.

FAQs

What information can I get from a User Agent?

You can extract the browser name, browser version, operating system, OS version, device type, platform/architecture, and rendering engine. This helps developers identify how users access a website.

Can User Agents be spoofed or faked?

Yes. Bots and advanced users can modify or spoof User Agents. While this tool detects common patterns, spoofed data may not fully represent the actual device or browser.

Why do websites read User Agent strings?

Websites use User Agent data for browser optimization, device-specific layouts, analytics, debugging, and fraud detection. It helps deliver a better user experience.

Can I change my User Agent manually?

Yes. Most modern browsers allow User Agent overrides through Developer Tools or through browser extensions for testing purposes.

Is this User Agent Parser tool accurate?

Yes. ToolNexIn uses the highly reliable UAParser.js library, trusted by developers worldwide. It is updated regularly to support new browsers and devices.

Disclaimer

This tool provides accurate data for most common browsers and devices. However, spoofed or custom User Agents may return partial or misleading information. ToolNexIn does not store, log, or track any User Agent strings or parsed results. All processing happens securely on your device.