Responsively
Open SourceTest responsive design on all devices simultaneously
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AGPL-3.0 v1.18.0 Mar 28, 2026
Since Aug 2019 297
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AI Summary
Responsively is an open-source desktop tool that enables developers to test websites simultaneously across multiple device resolutions. It simulates various screen sizes, device types, and orientations in a single view. The tool significantly accelerates the responsive design workflow and saves time in cross-device testing.
✓ Pros
- + Free and open-source, no hidden costs
- + Test all devices synchronously, real browser developer tools integrated
- + Cross-platform availability, easy installation and use
✗ Cons
- − Simulates devices, does not test on real physical devices
- − Limited network simulation and performance testing features
Use Cases
- → Simultaneous testing of websites on desktop, tablet, and mobile
- → Verification of CSS media queries and responsive layouts
- → Performance testing and debugging across different screen sizes
- → Design validation before deployment to production
Who is it for?
Frontend developers and web designers who want to efficiently test and optimize responsive design.
Tags
Platform: cross-platform
Pricing: Open Source
