About WhatisMyScreenResolutions

WhatisMyScreenResolutions was built to solve a simple yet persistent frustration: finding accurate, comprehensive display specifications quickly without misleading numbers, intrusive ads, or bloatware.

Most conventional screen check tools provide only a single coarse dimension (such as basic window width) and ignore crucial factors like hardware device pixel ratios, OS interface scaling, color space depth, or live refresh rates. We set out to build an authoritative, transparent benchmark that developers, designers, quality assurance testers, and display enthusiasts can rely upon daily.

A physical display cannot be described by a single measurement alone. Our suite monitors key display metrics in real time:

• Physical Screen Resolution: The total pixel matrix addressable by your display hardware, calculated by combining CSS logical dimensions with device pixel ratio scaling.

• Viewport Area: The live, active viewport available to your browser document (window.innerWidth and window.innerHeight), directly demonstrating how responsive breakpoints trigger.

• Device Pixel Ratio (DPR): The ratio between physical pixels and logical CSS pixels. High-DPI screens (such as Apple Retina, 4K UHD, and modern smartphones) render with DPR values of 2.0x, 3.0x, or fractional ratios, which dictate image asset crispness.

• Display Refresh Rate (Hz): Live hardware frame cycle sampling measured via high-precision performance.now() and requestAnimationFrame delta passes.

• Color Depth & Bit Precision: The bit-depth representation available to the render target (screen.colorDepth), ensuring colorists and designers know their color channel headroom.

• Aspect Ratio & Total Pixel Payload: Precise mathematical reduction of resolution proportions alongside total addressable pixel counts for visual asset planning.

Every calculation on WhatisMyScreenResolutions takes place strictly on the client side inside your web browser. We leverage standard Web Platform APIs including the Screen API, Window Interface, and MatchMedia CSS media query listeners.

Because our telemetry engine runs entirely in JavaScript on your local machine, your screen details, hardware configurations, and browser states are never transmitted, logged, or stored on remote servers. We believe privacy and speed should be fundamental features of every web tool.

WhatisMyScreenResolutions is independently maintained by a dedicated team of front-end software engineers, UI/UX designers, and hardware enthusiasts. We bring years of hands-on experience in responsive web development, display color science, and browser performance optimization.

All guides, FAQ explanations, and device resolution charts published on this site undergo rigorous testing against physical hardware across macOS, Windows, Linux, iOS, and Android to guarantee empirical precision.

Operating systems such as Windows 11 and macOS apply automatic UI scaling factors (such as 125%, 150%, or 200%) to improve text legibility on high-density panels. While browsers report logical screen coordinates to maintain CSS layout conventions, our engine reconciles logical units against the hardware pixel multiplier to reveal true underlying panel metrics.

If you ever notice a discrepancy between our readings and your monitor's retail packaging, verify whether OS display scaling or browser page zoom is currently active.

Have a feature request, spotted a new device display that needs cataloging, or want to suggest an improvement? We welcome community collaboration. Reach our engineering team anytime at hello@whatismyscreenresolutions.com.