↔ Responsive design testing tool – Viewport Resizer – Emulate various screen resolutions - Best developer device testing toolbarResponsive design testing tool It only takes 2 seconds! More than 720k people visited this site in 190 countries! Thank you for your support! Viewport resizer is a browser-based tool to test any website’s responsiveness. Just save the bookmarklet, go to the page you want to test, click on your created bookmarklet and check all kinds of screen resolutions of the page. The smartest way to share your
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