Hi, I’m David McCullum.
I created WhatIsMyScreenResolution.site to give people a fast, accurate, and simple way to check their screen resolution and other key display details—without installing software, creating an account, or digging through device settings.
With 12+ years of experience testing displays, I’ve spent years working with monitors, laptops, smartphones, and tablets to better understand how screen resolution, display quality, scaling, and device performance affect everyday use. Over time, I noticed that many people—whether they’re casual users, designers, developers, gamers, or shoppers comparing devices—often need quick, reliable screen information but end up on cluttered tools or confusing pages.
That’s why I built this site: to make display information easier to access, easier to understand, and more useful in real-world situations.
What This Site Does
WhatIsMyScreenResolution.site is a free browser-based tool that instantly shows important display information, including:
The tool works directly in your browser, so there’s nothing to download and no sign-up required. My goal is to keep the experience simple: open the page, get your screen details, and move on with clear, accurate information.
Why Screen Information Matters
Display settings affect how websites, apps, videos, games, and images actually look on your device. Knowing your screen resolution or device pixel ratio can be useful when you’re:
Instead of searching through system menus or relying on tools that don’t explain the results clearly, this site gives you the information in one place.
My Experience
My work is based on hands-on display testing across a wide range of devices. I focus on how screens perform in real-world use—not just what the specifications say on paper.
That includes understanding how factors like resolution, scaling, sharpness, pixel density, and display quality influence usability across desktops, laptops, tablets, and mobile devices. This experience shapes both the tool itself and the content I publish on the site.
I aim to provide trusted, practical insights on topics such as:
More Than Just a Tool
This site is more than a screen resolution checker.
I also publish helpful content focused on display technology, screen-related troubleshooting, and practical device insights. My goal is to create content that is:
Whether you’re trying to identify your current screen settings, compare display types, or learn how resolution affects everyday use, I want this site to be a resource you can trust.
My Approach
Everything on this site is built around three principles:
Accuracy
I aim to provide reliable display information based on your device’s current browser and system environment.
Simplicity
Useful tools should be easy to use. That’s why the site is designed to work instantly, without unnecessary steps.
Practical Value
I focus on real-world usefulness—helping people understand what their screen information means and why it matters.
My Mission
My mission is simple:
To make display information fast to check, easy to understand, and genuinely useful for everyday users.
Whether you’re here to quickly find your screen resolution or learn more about displays, our blog is built to provide a straightforward, trustworthy experience grounded in practical testing and real-world use.
