YouTube Speed Controls is a free Chrome add-on developed by James de Klerk. This handy tool allows you to easily control the playback speed of YouTube videos, giving you the flexibility to watch videos at a pace that suits you.

With YouTube Speed Controls, you can quickly switch between normal (1x), 2x, and 3x playback speeds with just a few simple keystrokes. To increase the speed to 2x, simply press the grave accent key (`). For an even faster speed of 3x, hold down the Ctrl key and press the grave accent key.

One thing to note is that after the initial installation, you may need to reload any YouTube pages that were already open. However, this is a one-time occurrence and won't affect your future usage.

Overall, YouTube Speed Controls is a convenient add-on for anyone who wants to have more control over the playback speed of YouTube videos. Whether you want to speed up a tutorial or slow down a lecture, this tool makes it easy and accessible.