Developer Tools

    Screen Resolution Checker

    Check CSS viewport size, DPR, and physical screen resolution

    Viewport (CSS Size)
    800 x 600 px

    Current size of your browser window layout.

    Screen Resolution
    800 x 600 px

    Logical dimensions reported by your operating system.

    Physical Resolution
    800 x 600 px

    Real hardware pixels (Logical * Device Pixel Ratio).

    Screen Parameters

    Device Pixel Ratio (DPR): 1
    Color Depth: 24-bit
    Screen Orientation: portrait-primary

    About Screen Resolution Checker

    Inspect viewport dimensions, physical screen resolution, device pixel ratio (DPR), color depth, and screen orientation in real-time.

    Essential for web designers testing CSS responsive media queries and debugging device scaling issues.

    How to Use Screen Resolution Checker

    1. 1Load this page on the target device.
    2. 2Review layout viewport sizes and physical pixel counts.
    3. 3Resize the browser to observe viewport scaling changes.
    View all Developer Tools

    More Free Tools