Website Resolution Tester: Preview Your Site on Any Screen Size—Instantly
Responsive design sounds simple until you’re staring at a layout that looks perfect on your laptop and breaks on an iPhone 6 or a Galaxy Tab from 2014. Real users don’t all share the same screen. They’re on old phones, new tablets, scaled laptops, and ultrawide monitors—and your site has to work on all of them. Website Resolution Tester is a free, browser-based tool that lets you preview any website at exact device viewport sizes. No installs, no accounts, no complicated setup. Paste a URL, pick a resolution (or several), and see how your site actually renders. ...