Responsive Lab
View multiple device viewports simultaneously for responsive design testing
As of June 2026, Responsive Lab has 25 users in the Developer Tools category.
Usersup 31.6 percent+31.6%
25
25
Ratingno change0%
—
— reviews
Reviewsno change0%
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Version
1.2.0
Manifest V3
History
3 snapshotsTracking since May 8, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| May 8, 2026 | 19 | — | — | 1.2.0 |
| May 16, 2026 | 18 | — | — | 1.2.0 |
| Jun 10, 2026 | 21 | — | — | 1.2.0 |
| Now | 25 | — | — | 1.2.0 |
Permissions & access
- Permissions
- activeTabtabsdeclarativeNetRequestdownloads
- Host access
- <all_urls>
Screenshots
About
Responsive Lab is a developer tool for testing responsive web design across multiple device viewports simultaneously. Key Features: • View websites in multiple device sizes side-by-side (iPhone, iPad, Android, Desktop, and custom viewports) • Take screenshots of individual viewports at exact device dimensions • Drag-and-drop to reorder viewports for easy comparison • Filter viewports by device type (Mobile, Tablet, Desktop) • Toggle between portrait and landscape orientations • Add custom viewport sizes for testing specific dimensions • Dark mode support for comfortable extended use • All processing is done locally - no data collection or transmission Perfect for web developers, designers, and QA testers who need to verify responsive layouts and cross-device compatibility quickly and efficiently.
Technical
- Version
- 1.2.0
- Manifest
- V3
- Size
- 291KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- pcdfcgcmacfhgnnppeghikbbgdollhoo
- Developer ID
- u8877a1976bea2ad9a0fa9c6f389d40b8
- Developer Email
- [email protected]
- Created
- Nov 3, 2025
- Last Updated (Store)
- Nov 10, 2025
- Last Scraped
- Jun 10, 2026
- Website
- —
- Support URL
- —
- Privacy Policy
- —
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Data sourced from the Chrome Web Store · last verified Jun 10, 2026.