南天门, also known as Blue Sky Is Coming, is a free Chrome add-on developed by Ericrichmo. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools.

With 南天门, users can easily gather and download information from HTML pages that contain tables. This tool simplifies the process of extracting data from tables and provides a convenient way to organize and save the information for further use. Whether you need to extract financial data, statistical information, or any other tabulated data, 南天门 simplifies the task by optimizing the display format of the extracted amounts.

By using 南天门, users can save time and effort in manually extracting and formatting table data. This add-on enhances productivity and allows for efficient data gathering and analysis.