Downloading Keyword Search 2.2 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. The software is categorized as Internet & Network Tools. We recommend checking the downloaded files with any free antivirus. This free Mac application is a product of ArneArts Hyperactive.
From the developer:
Keyword Search is a simple extension for Safari on macOS and iOS that enables keyword searching from the address bar. This is a simple but powerful feature that gives you access to several search engines using simple keywords. Several search engines are provided out of the box, yet you can easily add your own.
You may want to check out more software for Mac, such as Smart Keyword Search, Keyword Optimizer Pro or AppNalyzer Lite Keywords Tool, which might be related to Keyword Search.