Description
Instantly compare two websites with a live, interactive overlay. Oversite makes it easy to spot visual differences between staging and production environments, review design changes, or verify deployments.
π Key Features:
β’ Live Overlay Comparison - View both sites rendered on top of each other in real-time
β’ Adjustable Opacity Slider - Smoothly blend between Current and Comparison sites to spot differences
β’ Diff Mode - Toggle a special blend mode that highlights pixel-level differences
β’ Interact Mode - Click directly on the comparison page to open modals, menus, or trigger interactions
β’ Cross-Origin Support - Compare sites across different domains without restrictions
β’ Synchronized Scrolling - Scroll position is mirrored to both sites in real-time
β’ Movable Toolbar - Drag the toolbar anywhere on screen so it never blocks your view
β’ Editable Comparison URL - Change the comparison target anytime without restarting
β’ Session Persistence - Your comparison continues as you navigate through the site
β’ Auto-Retry Loading - Automatically retries if the comparison page fails to load
π‘ Perfect For:
β’ Developers comparing staging vs production
β’ QA teams verifying visual changes
β’ Designers reviewing implementations
β’ Anyone who needs to spot differences between two versions of a website
π How to Use:
1. Navigate to the page you want to compare
2. Click the Oversite extension icon
3. Enter the URL of the site to compare against
4. Click "Start Comparison" and use the slider to blend between views
Simple, fast, and effective visual comparison for web professionals.
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Permissions (6)
Permissions
activeTabβΉ Can access the current tab when you click the extension declarativeNetRequestβΉ Can block or redirect network requests declarativeNetRequestFeedback scriptingβΉ Can inject scripts into web pages storageβΉ Can store data locally in your browser tabsβΉ Can see your open tabs and their URLs
Details
| Version | 1.2.0 |
| Updated | Feb 23, 2026 |
| Size | 107KiB |
| First Seen | Apr 1, 2026 |
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