Video Speed Controller is a free Chrome extension developed by zusi. As an add-on tool in the Browsers category, this program allows users to change the playback speed of videos, including those on YouTube, using simple keyboard shortcuts.

With Video Speed Controller, you can easily adjust the playback speed of videos by increments of 0.1x. This feature is particularly useful for those who want to slow down or speed up videos to match their preferred pace or to better understand the content.

The extension offers three keyboard shortcuts for convenient control. Pressing 'a' on the keyboard will slow down the playback speed, while 'd' will speed it up. To reset the speed back to normal, simply press 's'. These intuitive shortcuts make it easy to quickly adjust the video speed without interrupting the viewing experience.

Video Speed Controller is a handy tool for anyone who wants more control over video playback speed. Whether you're watching educational videos, tutorials, or simply enjoying entertainment content, this extension provides a simple and convenient way to customize your viewing experience.

Please note that the developer, zusi, has made the source code available on GitHub for those interested in exploring and contributing to the project.