User Agent Parser
Break down and analyze browser User Agent strings.
Advanced User Agent Parser & Inspector
Instantly decode any browser User Agent string. Identify browser versions, operating systems, hardware platforms, and layout engines with high precision.
Intelligent Analysis Features
Browser Recognition
Identifies major browsers like Chrome, Firefox, Safari, Edge, and Opera, including their underlying versions.
OS Detection
Accurately detects operating systems including Windows, macOS, Linux, Android, and iOS from the string.
Device Type
Categorizes the requesting client as Desktop, Mobile, or Tablet to help with responsive design debugging.
Engine Analysis
Extracts information about the layout engine, such as WebKit, Blink, or Gecko, for compatibility testing.
Live Detection
Automatically detects and parses your current browser's UA string on page load for immediate feedback.
Private Parsing
Analysis is performed entirely within your browser context. No UA strings are ever logged or stored on our servers.
How to Use the Parser
Paste a User Agent string into the input area, or use the pre-filled string from your current browser.
Click "Analyze String" to trigger the parsing engine and extract metadata.
Review the browser, OS, device, and engine details in the summary cards below.
What is a User Agent?
A User Agent (UA) is a characteristic string that a software agent, such as a web browser, sends to a web server to identify itself. It typically includes information about the software's name, version, and the host operating system.
Why Parse UA Strings?
Debugging: Troubleshoot issues that only occur on specific devices or browser versions.
Analytics: Understand the profile of users visiting your web application.
Bot Detection: Identify search engine crawlers and automated scripts.
Common problems this tool solves
Debugging Device-Specific CSS Issues with User Agent Info
Understand the exact device and browser engine settings to fix stubborn CSS bugs across different platforms.
Detecting Mobile vs Desktop Users from User Agents
Accurately categorize your web traffic into Mobile or Desktop based on the User Agent's device indicators.
Identifying Browser and OS from User Agent Strings
Decode complex User Agent strings to accurately identify the browser version and operating system of your users.