キーボードで検索 is a Chrome add-on developed by clover. It is a free extension that allows users to display search bars for various websites by simultaneously pressing the Shift, Ctrl, and other keys. For example, pressing Shift+Ctrl+G will display a search bar for Google, Shift+Ctrl+A for Amazon, and so on.

With this extension, users can easily access search bars for different websites without having to open a new tab or navigate to each website individually. By simply pressing the designated key combination, the search bar appears in the center of the screen, allowing users to quickly enter their search queries.

The latest version, ver1.1, added the ability to search on Kakaku.com by pressing Shift+Ctrl+K. To close the search bar, users can either press Shift+Ctrl+Q or click anywhere outside of the search bar.

Overall, キーボードで検索 is a convenient and efficient extension for Chrome users who frequently perform searches on various websites.