✅Recently updated
Description
A lightweight developer tool that displays a floating overlay with real-time viewport dimensions, browser window size, and Tailwind CSS breakpoint detection on any webpage.
Features:
- Shows viewport dimensions (width × height) updated in real-time as you resize
- Shows browser window size via Chrome's native API
- Automatically detects Tailwind CSS breakpoints (v3 and v4) and displays the current active breakpoint
- Draggable overlay that snaps to the nearest corner
- Toggle visibility of each measurement independently
- Configurable default position (any corner)
- Settings persist across sessions
- Minimal permissions: only runs when you click the extension icon
- Zero impact on page performance — uses Shadow DOM for complete CSS isolation
Reviews
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Permissions (3)
Permissions
activeTabℹ Can access the current tab when you click the extension scriptingℹ Can inject scripts into web pages storageℹ Can store data locally in your browser
Details
| Version | 1.0.0 |
| Updated | Feb 25, 2026 |
| Size | 24.1KiB |
| First Seen | Mar 24, 2026 |
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