Screen check
Screen Resolution Checker
Check your screen resolution, viewport size, browser window size, available screen area, and device pixel ratio in one place.
Reading browser-reported screen data...
What the screen resolution checker detects
A browser can usually tell you the current viewport, reported screen size, and device pixel ratio. It cannot always confirm the panel’s exact native specification, especially if the OS, browser zoom, or display scaling is changing what the page sees.
When this quick check is useful
Use it when you need a fast answer during responsive QA, ad layout checks, support conversations, or before you compare monitor scaling settings across devices.
FAQ
Why do viewport size and screen size look different?
Viewport is the part of the page you can actively render into. Screen size is the broader display area the browser reports. Browser chrome, zoom, and scaling can make them diverge.
Can this page tell me my exact native monitor resolution?
Sometimes it gets close, but not always. Treat it as a browser-side diagnostic, not a guaranteed hardware report.