Test on the smallest viewport first (iPhone SE, 375px) — if it works there, larger screens are usually fine?

Test on the smallest viewport first (iPhone SE, 375px) — if it works there, larger screens are usually fine.

Check both portrait and landscape on tablets — layout issues often appear only in one orientation?

Check both portrait and landscape on tablets — layout issues often appear only in one orientation.

Use custom dimensions to match specific device widths reported by your analytics.

Test any URL on iPhone, iPad, Android, and desktop viewports with live responsive preview

Test any URL on iPhone, iPad, Android, and desktop viewports with live responsive preview — all in your browser.

1Enter the URL you want to test.
2Click 'Load' to render the page in the preview frame.
3Switch between device presets (iPhone, iPad, Android, desktop) to test different viewports.
4Toggle between Portrait and Landscape orientation.
5Adjust the zoom level or enter custom viewport dimensions.

Test on the smallest viewport first (iPhone SE, 375px) — if it works there, larger screens are usually fine.
Check both portrait and landscape on tablets — layout issues often appear only in one orientation.
Use custom dimensions to match specific device widths reported by your analytics.

OneKitTools TeamUpdated 2.21.4