Window Size
Free online window size. Display viewport dimensions. Works in your browser, no sign-up needed.
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Embed this tool
Copy and paste the code below into your website to embed this tool for free. An attribution link to The Util Box is required.
<iframe src="https://www.theutilbox.org/embed/window-size-checker" width="600" height="500" frameborder="0" style="border: none; max-width: 100%;" title="Free window size checker tool from The Util Box"></iframe>