Mobile Tools - Viewport & Emulate

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Get printable templates and assembly instructions for classic Montessori mobiles. Create high‑contrast visual mobiles for your newborn.

DIY baby mobile Montessori

Change the viewport meta tag and see how a page would render at different device widths. Understand responsive basics.

Design meta mobile simulator viewport

Pick a contact from the device’s address book (mobile). Read name, email, and phone. All permission‑based. Privacy safe.

API API Contact Picker contacts mobile

Limit browser gestures on an element: pan‑x, pinch‑zoom, manipulation. Draw on a canvas to test. Mobile dev helper.

Developer Tools CSS gesture mobile touch‑action

Preview any website inside emulated device viewports (iPhone, iPad, various resolutions). No screenshot, live interaction in an iframe. Local tool.

Design emulator mobile responsive test viewport

Check current screen orientation and test the lock API. Useful for mobile web apps. Demo with code.

API API mobile Screen Orientation test

Trigger different vibration patterns on mobile devices. Test if your phone supports haptic feedback. Simple demo.

API API haptic mobile Vibration

Tag: Mobile Tools - Viewport & Emulate