What Is My Screen Resolution?
See your screen resolution, browser window size, pixel density, color depth and touch support instantly — with one-click copy.
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Resize the window — the viewport numbers update live.
Every Display Number, One Glance
The card above already shows your numbers: the screen resolution (the display's pixel grid), the browser viewport (what web pages actually get, which is why it is smaller), the device pixel ratio (2 or 3 on "Retina"-class screens), color depth, orientation and touch support. Resize the window and the viewport numbers follow live.
Typical uses: reporting your setup to tech support, checking what a design will actually have to work with, verifying a new monitor is really running at native resolution, or confirming a TV connected as a second screen negotiated the right mode. The copy button grabs a tidy summary for pasting into a ticket.
Frequently Asked Questions
Why is the viewport smaller than my screen resolution?
The viewport is the browser's inner drawing area: tabs, address bar, bookmarks and window borders all take their share. Full-screen mode brings the two closest together.
What does device pixel ratio mean?
How many physical pixels represent one CSS pixel. A ratio of 2 means a "1000 px" wide page is drawn with 2000 physical pixels — the sharpness of Retina-class displays.
Why does the resolution differ from my monitor's spec?
Operating system scaling: at 150% scaling a 2880-pixel panel reports 1920 logical pixels. The panel still uses every physical pixel; the OS just draws things larger.
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What Is My Screen Resolution?