Screen Size Detector
Detect all monitors connected to your system and inspect detailed technical specs for each display.
This tool reads your display configuration using the Multi-Screen Window Management API. It shows the resolution, pixel ratio, color depth, orientation, and position for every monitor — not just the one your browser window is on.
Use it to check screen specs before designing responsive layouts, verify DPI across devices, or simply see what your system knows about your connected displays.
Click the button below to detect all monitors connected to your system. Your browser will ask for permission — this is required to read display information.
How to Use
Follow these quick steps to get the result you need.
Click the "Detect Screens" button to start scanning.
Your browser may ask for permission — this is required to read the full display information.
Once detected, the tool shows a visual layout of all monitors plus detailed cards with specs for each display.