What Browser and OS Are You Using?
See your browser name, version, operating system, platform, language settings, and more — all detected from your browser's user agent and navigator properties.
This tool parses navigator.userAgent and reads navigator properties to identify your browser, version, OS, engine, CPU cores, and available memory.
navigator.hardwareConcurrency reports logical CPU cores (typically 4–16); navigator.deviceMemory reports RAM in GB (Chrome only, rounded to nearest power of 2).
What Do Your Results Mean?
| Result | Range | Meaning |
|---|---|---|
| Detected | Browser, version, and OS identified | Your browser's user agent string was parsed successfully. Feature detection results show which Web APIs are available. |
| Limited | Some properties return undefined | Properties like deviceMemory are Chrome-only. Missing values do not indicate a problem — they reflect browser privacy policies. |
| Not Supported | User agent string is masked or empty | Some privacy-focused browsers reduce the user agent string. Core functionality detection still works via feature checks. |
Common Issues and How to Fix Them
Detected browser name is incorrect
Some browsers modify their user agent string for compatibility (e.g., Edge includes 'Chrome' in its UA). The tool uses multiple signals to improve accuracy, but edge cases exist.
CPU cores or memory shows as unknown
navigator.deviceMemory is available only in Chrome and Edge. Firefox and Safari do not expose this value for privacy reasons.