Free online screen resolution tester. Real-time display of screen size, resolution, pixel density, color depth and viewport information. Detects device pixel ratio and browser window size. Helpful for responsive design testing. Pure client-side, no registration.
Zero-dependency · Works offlineFree online screen resolution tester. Real-time display of screen size, resolution, pixel density, color depth and viewport information. Detects device pixel ratio and browser window size. Helpful for responsive design testing. Pure client-side, no registration.