SEO
Multi device website testing
Multi device website testing in Chrome with free multi-viewport previews, sync scroll, and modern device presets.
Why MSIM
MSIM makes multi device website testing practical for daily frontend work: open devices, sync scroll, rotate, and fix layout issues faster.
Key benefits
- Find responsive bugs in seconds
- Compare multiple devices side-by-side
- Validate mobile layouts before deployment
- Reduce repetitive DevTools switching