Screen Resolution Checker
Inspect screen, viewport, window, pixel ratio and browser display details.
Processing runs locally in your browser. Toolexa does not upload or permanently store your input.
About Screen Resolution Checker
Screen Resolution Checker displays the browser and display measurements that affect responsive website layouts. Open the page to see the physical CSS-pixel screen resolution, available screen area, viewport dimensions, outer browser-window size, device pixel ratio, color depth, pixel depth, orientation and user agent reported by the browser. Values update when the window is resized or the device orientation changes, making the tool useful for frontend testing, screenshot planning, breakpoint debugging, support conversations and checking how browser chrome affects the usable page area. Device pixel ratio helps explain why high-density screens may contain more hardware pixels than their CSS dimensions suggest, while viewport size shows the area available to the current document. A copyable report bundles the detected details for bug tickets, QA notes or developer discussions. All inspection uses standard browser APIs locally; Toolexa does not upload or permanently store the device information displayed by the tool. Some browsers may reduce or generalize user-agent details for privacy, and zoom settings can influence reported CSS-pixel measurements. The responsive result cards update automatically and require no form submission, with Refresh available whenever you want to capture the latest values.
How to use Screen Resolution Checker?
- Open the tool in the browser you want to inspect.
- Review screen and available dimensions.
- Compare viewport and outer window sizes.
- Check DPR, color depth and user agent.
- Resize if needed, then copy the refreshed report.
- Open the tool page and read the input labels carefully.
Screen Resolution Checker Features
- Show screen and available resolution
- Report viewport and browser window size
- Display device pixel ratio
- Show color and pixel depth
- Display orientation and user agent
- Copy a refreshed device report
Screen Resolution Checker FAQs
What is the difference between screen and viewport size?
Screen size describes the display in CSS pixels, while viewport size is the area available to the webpage.
What is device pixel ratio?
DPR is the ratio between device pixels and CSS pixels reported by the browser.
Why does resolution differ from advertised hardware pixels?
Browser scaling, operating-system scaling and DPR affect CSS-pixel measurements.
Does browser zoom affect results?
Zoom can affect viewport and CSS-pixel values in many browsers.
Is device information uploaded?
No. The values are read and displayed locally.