Bootstrap Grid Overlay is a free Chrome add-on developed by rule-page-az. This handy tool allows web developers to quickly toggle a Bootstrap Grid Overlay on and off, providing a visual representation of the Bootstrap grid system based on their application's styles.

With Bootstrap Grid Overlay, developers can easily target specific elements while using the Chrome Developer Tools. The overlay allows users to click through the grid to select and inspect elements, making it a valuable tool for debugging and fine-tuning the layout of a website.

In addition, Bootstrap Grid Overlay offers additional features such as the ability to enable or disable a fluid container, view the current Bootstrap breakpoint, and adjust the opacity of the grid overlay. These features provide developers with the flexibility to customize their grid overlay experience to suit their specific needs.

Overall, Bootstrap Grid Overlay is a convenient and intuitive tool for web developers working with the Bootstrap framework. Its seamless integration with Chrome and its ability to utilize the application's styles make it a valuable asset for anyone looking to optimize their website's layout.