What Is My Screen Resolution
Free online screen test that instantly detects your resolution, DPI and viewport
Detecting...
Enter diagonal screen size (inches) to calculate sharpness.
Generated code snippets for this device.
@media only screen
and (min-width: 1920px)
and (min-height: 1080px) {
/* Styles */
}What Your Screen Resolution Actually Means and Why It is Important
What is my screen resolution? This is a question that often floats around the minds of web developers fine-tuning responsive layouts, designers ensuring their assets are pixel perfect before export or remote workers grappling with new monitor settings. But it’s not just about the numbers. Screen resolution has a big impact on how crisp your content looks, and how much you can fit on your display, which matters a lot when you’re trying to create seamless experiences across devices.
ToolCompanion’s intuitive tool makes this quest hassle-free by automatically detecting and displaying your screen details as soon as you arrive on the page. No clicks needed, it displays all the information from your current screen resolution to browser window size, usable space, viewport size, aspect ratio, color depth, and even DPI. All of which is useful for those serious about digital design or troubleshooting displays.
Whether you’re doing a quick screen check, or a deep comprehensive screen resolution test, this tool has all the info you need at your fingertips.
Key Features
Auto Detection
No clicks required, information is available as soon as the page loads.
Detailed Display
Shows full resolution of screen, browser window, viewport and usable space.
Aspect Ratio Insight
Identifies aspect ratios for media compatibility at a glance.
DPI Info
For visual pros, checks the color depth and print quality.
How to Use
Visit the Tool Page
Open the What Is My Screen Resolution tool page in your browser.
See Your Screen Details
After the page loads, your screen resolution, browser size, viewport dimensions, usable space, aspect ratio, color depth and DPI will be automatically detected and displayed.
Copy the Information or Share it
Click the "Copy All Details" button to instantly copy all the information to your clipboard.
Frequently Asked Questions
Q: What is the difference between screen resolution and browser viewport size?
Your screen resolution is the actual number of pixels on your physical display. The browser viewport is the part of your browser window that you can see. If you have toolbars, bookmark bars or the window isn’t maximized this area will be smaller.
Q: What does DPI mean for my screen?
DPI means dots per inch and it’s a way of measuring how many pixels are squeezed into one inch of your display. Higher DPI , the sharper the text and images will be . That is why Retina and high DPI screens look significantly more crisp.
Q: Why does my screen resolution matter for websites?
Websites and web applications are built to be viewed on specific screen widths and resolutions. Knowing yours helps you understand why some layouts look different on your screen to screenshots or designs made at a different resolution.
Q: How do I check my screen resolution on Windows or Mac without going into settings?
Simply use the What Is My Screen Resolution tool on ToolCompanion and it will instantly find and show your resolution without having to go through any system settings.
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