Free • Live preview • 4 device sizes

Mobile-Friendly Checker

Preview any webpage in iPhone, Android, iPhone SE, or iPad viewports. Spot responsive design issues, font sizes, layout breaks before users do.

STEP 1

Enter the URL

Any public webpage you want to preview.

STEP 2

Pick a device

iPhone, Android, iPhone SE (small), or iPad.

STEP 3

See the preview

Live, scrollable preview at the real device dimensions.

Preview on mobile

Note: some sites block iframe embedding via X-Frame-Options. If preview is blank, the site is blocking us.

Why mobile-friendly matters in 2026

Google uses mobile-first indexing for all websites. That means Google looks at the mobile version of your page first when deciding how to rank it. If your page looks broken on mobile — text too small, buttons too close, content overflowing — your rankings suffer regardless of how good the desktop version is.

What to check in the preview

Font sizes: Body text should be at least 14px (16px ideal) without zooming.
Tap targets: Buttons and links at least 44×44 pixels with spacing.
Horizontal scroll: You should not need to scroll sideways. Content fits the viewport.
Sticky elements: Headers, popups, and banners that cover the content on small screens.
Forms: Inputs sized correctly, mobile keyboard appears with proper input type.

Common mobile failures

✕ Bad

Text smaller than 12px

Forces users to pinch-zoom. Bad UX.

✕ Bad

Buttons touching each other

Easy to mis-tap, frustrates users.

✓ Good

Single column layout, 16px+ body text

Reads naturally on every mobile device.

✓ Good

44×44px buttons with 8px+ spacing

Easy tap targets, Apple/Google recommended.

Frequently asked questions

Why is my preview blank?

Some sites set X-Frame-Options: DENY which prevents iframe embedding. We cannot work around this — try other sites or use browser DevTools instead.

Is this the same as Google Mobile-Friendly Test?

Different. Google's test analyzes mobile usability with their algorithm. This tool gives you a visual preview at real device sizes — easier to spot specific design issues.

Why only 4 devices?

These cover ~95% of real mobile traffic. iPhone 14 (modern iOS), Pixel 7 (modern Android), iPhone SE (smallest common screen), iPad (tablet).

Does this tool actually use a real device?

No. We render your page in an iframe sized to match real device viewports. Visual results match real devices closely.

What about landscape mode?

Currently portrait only. Most mobile users browse in portrait. Add ?landscape=1 to URL not supported in this version.