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My Operating System - Which OS am I using

Discover which operating system you are using, version, architecture and screen resolution. Free tool that automatically detects detailed information about your OS, device and hardware.

About Operating System Detector

This tool automatically detects which operating system you are using and displays detailed information such as name, version, architecture, device type, screen resolution and hardware information. Useful for web developers, technical support, compatibility testing and curious users about their system specifications.

Understanding OS and Resolution

What is an Operating System?

Operating System (OS) is the main software that manages all computer hardware and software. It serves as an intermediary between you and the hardware, allowing you to run programs and use the device. Main OSs: Windows (Microsoft), macOS (Apple), Linux (open source), Android (Google for mobile), iOS (Apple for iPhone/iPad).

What is Screen Resolution?

Screen resolution is the number of pixels (dots) your screen can display, expressed as width × height (e.g., 1920×1080). The higher the resolution, the more detailed and sharp the displayed content. Common resolutions: HD (1280×720), Full HD (1920×1080), 2K (2560×1440), 4K (3840×2160).

What is Pixel Ratio?

Pixel ratio (Device Pixel Ratio) indicates how many physical screen pixels correspond to one CSS pixel. Retina displays and high-density screens have a 2x or 3x ratio, making images and text appear sharper. Important for developers creating websites that look good on all screens.

Detected Information

  • ✓Operating system name and version
  • ✓Architecture and device type
  • ✓Screen resolution and window size
  • ✓CPU cores and RAM memory

What to use it for?

  • • Check software compatibility
  • • Test responsive design
  • • Get information for technical support
  • • Optimize experience for your device

💡 Important: Information is detected by the browser and may vary in accuracy. The displayed resolution is the native resolution of the main screen. On systems with multiple monitors, only the main monitor is detected.

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