Website Resolution Tester

Preview how your website looks across different devices and screen sizes. A minimal, precise viewport testing tool covering devices from 2014 to today.

Resolution (Width × Height)

Check a preset to include it in Launch selected. Tap the device name or size to copy that resolution into width/height and scroll to the launch buttons.

Device Presets

Checkbox: add or remove that size for batch launch. Device row (name or dimensions): set width/height for a single launch and scroll to the buttons.

Frequently Asked Questions