Responsive Tester

Test your site across devices and breakpoints with visual comparison, screenshot diffs, and layout analysis.

Category: Web & Frontend Dev | Security status: community | Rating: 4.4/5 | Version: 1.6.0

What Responsive Tester does

Responsive Tester captures your site across multiple device viewports simultaneously. Compare layouts side-by-side, detect visual regressions with pixel-diff analysis, and get AI-powered suggestions for responsive design improvements. Supports custom viewports, device emulation, and touch interaction testing.

Use cases

Visual regression testing across breakpoints
Compare layouts across mobile, tablet, and desktop
Detect responsive design issues before launch
Generate device screenshot galleries for stakeholders

Install Responsive Tester

npx clawhub@latest install responsive-tester

Frequently asked questions

What devices does it emulate?

50+ preset devices including all iPhone, iPad, Pixel, and Samsung models. Custom viewports also supported.

Can it detect layout issues automatically?

Yes — it uses AI to detect overflow, overlapping elements, and text readability issues.