Instantly detect your screen resolution, viewport size, pixel ratio, and color depth. Free browser display detector.
Screen resolution describes how many pixels your display can show horizontally and vertically. A resolution of 1920×1080 means 1920 pixels across and 1080 pixels tall, for a total of about 2 million pixels.
Common resolutions include HD (1280×720), Full HD (1920×1080), 2K (2560×1440), and 4K (3840×2160). Higher resolution means sharper, more detailed images.
Your screen resolution is the physical display size. Your viewport is the area your browser window uses, which is smaller once you account for browser chrome (toolbars, address bar). Web developers typically design for the viewport, not the full screen resolution.
Full HD (1920x1080) remains dominant on desktops. QHD (2560x1440) is growing fast among gamers and professionals. On mobile, tall portrait resolutions like 1080x2400 dominate. 4K (3840x2160) is now mainstream on large monitors.
Your screen resolution is the total display pixels. Viewport is the area your browser window uses for rendering, smaller because toolbars and the taskbar take space. Web developers design for viewport dimensions, not full screen resolution.