Developer Utilities · Free tool
Screen Resolution Simulator
Preview any URL at iPhone, iPad, MacBook, 1080p, and 4K sizes instantly online. Spot-check responsive design for free without using devtools.
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What it does
Preview any URL at common device viewport sizes — phone (iPhone, Pixel, Galaxy), tablet (iPad), laptop, 1080p, 1440p, and 4K. Side-by-side responsive spot-check without opening devtools.
Caveat: most well-secured sites set X-Frame-Options: DENY or a strict CSP frame-ancestors directive, which legitimately stops them from rendering inside any iframe. We surface a clear notice when that happens.
Embed this tool on your siteShow snippetHide
Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.
<iframe src="https://freetoolarena.com/embed/screen-resolution-simulator" width="100%" height="720" frameborder="0" loading="lazy" title="Screen Resolution Simulator" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>How to use it
- Enter any URL (https:// is added automatically).
- Pick a device — phone, tablet, laptop, or desktop.
- Toggle portrait/landscape if relevant.
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