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Device ➝ Viewport100% Client-Side

Screen / Viewport Checker

Your current screen resolution, browser window size and pixel density — read live from window and updated instantly as you resize.

Browser Window

— × —

Live

Window

— × —

innerWidth × innerHeight

Screen

— × —

screen resolution

Pixel Ratio

1×

devicePixelRatio

Color Depth

24-bit

bits per pixel

Orientation

Landscape

Values update live as you resize your browser window.

How to

How to generate viewport size online for free

  1. 1Set the options for your viewport size.
  2. 2Click Generate — the result is created instantly in your browser.
  3. 3Copy the output or download the generated file.
FAQ

Frequently Asked Questions

Answers to the most common questions about Convrs.

How do I generate viewport size for free?
Set your options, click Generate, and copy or download the result. It is free and created locally on your device.
Is Screen / Viewport Checker private and secure?
Yes. Screen / Viewport Checker runs entirely in your browser, so your data never leaves your device — nothing is uploaded or stored on a server.
What is the viewport?
The viewport is the visible area of a web page. Checking it in real time helps you build responsive layouts for any screen.
About this tool

Understanding Screen / Viewport Checker

Screen / Viewport Checker creates viewport size instantly in your browser. Set the options you need, generate, and copy or download the result — free, private, and done locally.

Small utilities earn trust by being instant and predictable. With everything running locally, the answer you see is the answer you get — no waiting, no tracking, and nothing sent to a server.

Privacy by construction: Screen / Viewport Checker runs entirely in your device's memory. Your files, text and data are never uploaded, stored or logged by us — there is no server in the path.

100% in-browser — nothing is uploaded
No account or sign-up required
Free to use, no watermarks
Runs on desktop and mobile browsers
Your source data is never stored or logged
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