Responsive Tool
Free responsive website checker for mobile, tablet, and desktop viewports
1 ratings4.14
Saves1
CategoryDeveloper Tools
PlatformWeb
PricingFree
Responsive Tool allows developers, freelancers, and agencies to test and compare their website layouts across multiple device sizes simultaneously without signup or download. It displays real CSS viewport sizes for various devices side-by-side, enabling quick detection of layout issues before deployment.
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Information
CategoryDeveloper Tools
PlatformsWeb
PricingFree
AccountNot confirmed
ListedOctober 2026
WebVisit
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Website checks
Mobile PageSpeed
Automated checks of the public website by Google Lighthouse 13.5.0. Scores can vary between runs.
Checked Oct 23, 2026
Test this website on PageSpeedWebsite checks refresh automatically each week.
- Performance
- 57 out of 100, Needs improvement
- Accessibility
- 100 out of 100, Good
- Best Practices
- 100 out of 100, Good
- SEO
- 100 out of 100, Good
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