Keiba tenkijp is a free Chrome extension developed by ふぉーてぃないなー. It falls under the Browsers category and is classified as an Add-ons & Tools subcategory. This extension enhances the functionality of the tenki.jp website when viewing the weather forecast for racecourses.

When you display the 1-hour or 3-hour weather forecast for a racecourse on tenki.jp, Keiba tenkijp adds the wind direction at the "Wind Direction" field specifically for the "Straight" section of the racecourse.

The latest version, v1.2, has been confirmed to work on Kiwi Browser for Android OS. It also includes support for the lite page. In v1.1, the extension added a link list to other racecourses (common to the central region), boat racing courses, and bicycle racing courses. Additionally, for racecourses, it provides links to nearby AMeDAS data for past data research purposes.