About
About WhatisMyScreenResolutions
What WhatisMyScreenResolutions does
WhatisMyScreenResolutions tells you exactly what your display is doing. In one glance you get your screen resolution, viewport size, device pixel ratio, refresh rate, color depth, aspect ratio, and total pixel count — everything you need to understand how a page, image, or video will look on your screen.
Why we built it
Most resolution checkers give you a single number and stop there. We wanted one place that gives the full picture of a display — live. Designers use it to plan responsive layouts, developers use it to verify pixel-perfect builds, and curious visitors use it to finally know what that "1920 × 1080" label on their monitor actually means.
How it works
Every measurement is read directly from your browser using standard web APIs. The page itself does the work — no app to install, no account to create, and nothing about your display is stored or uploaded by WhatisMyScreenResolutions.
Our commitment
Fast, free, and accurate. The tool updates the instant you resize, rotate, or switch displays, and it works on any device with a browser — from 4K desktops to iPhones to handhelds like the Steam Deck.
Get in touch
Questions, feedback, or feature ideas? We'd love to hear from you at hello@whatismyscreenresolutions.com.