Resolution Test
Check your current screen resolution, browser viewport, DPR, and display details instantly.
Instant Screen Resolution Test
This resolution test shows your current screen resolution, browser viewport size, device pixel ratio, aspect ratio, and related display details. It is designed for everyday users who want a quick answer to "what is my resolution?" without opening system settings.
Screen resolution is the physical pixel grid of your display, such as 1920 x 1080, 2560 x 1440, or 3840 x 2160. Viewport size is the browser area available to a web page. These numbers are often different because browser chrome, zoom, operating-system scaling, and DPR all affect the CSS viewport.
Resolution Test Results
Current Display
System and Browser
How to Read Your Resolution Test
If the screen resolution is 1920 x 1080, your display has 1,920 physical pixels across and 1,080 physical pixels down. If the viewport is smaller, the browser window or mobile browser UI is reducing the available page area. If DPR is 2 or 3, the device uses multiple physical pixels for each CSS pixel, which is common on phones, tablets, and high-density laptops.
Use this page when checking display settings, troubleshooting blurry text, choosing wallpapers, recording tutorials, testing browser zoom, or comparing your device against a standard screen resolution chart. Developers who need breakpoint testing should use the responsive design tester instead.
Common Resolution Test Questions
Why is my browser viewport smaller than my screen resolution?
The viewport excludes browser tabs, address bars, sidebars, scrollbars, and operating-system UI. On mobile devices, scaling and DPR also make the CSS viewport much smaller than the physical screen resolution.
Is this different from a responsive tester?
Yes. This resolution test reports your current device and browser. A responsive tester simulates many viewport sizes so developers can test layouts across phones, tablets, laptops, and desktops.
How do I compare this screen with another display?
Use the screen size comparison tool to compare width, height, diagonal, and area between monitors, laptops, tablets, phones, and TVs.