Border Patrol от CommitsOverCoffee

Border Patrol visually highlights every element on a webpage using colorful borders to help you better understand the page’s structure. Hovering reveals the tag name and classes, and any outdated HTML tags are flagged automatically.

Features:

1. Adds outlines to all HTML elements. 🖌️
2. Displays tag and class names on hover. 🪪
3. Flags deprecated HTML tags. 🚩
4. Uses distinct colors to differentiate elements. 🎨

No Signup. No Telemetry. Open Source.