To play, pause, forward, or rewind YouTube videos, you can reach for themouse every time, locate the cursor, direct it to the right button/link, and click — but it’s so much more convenient to tap a single key on the keyboard instead. That’s why you need to know these handy one-key YouTube shortcuts.

1. The J key takes the video backward by 10 seconds.
2. The L key takes the video forward by 10 seconds.
3. The K key allows you to play/pause YouTube videos, just like spacebar does. Sandwiched between the J and L keys, it functions like the Play/Pause button found in media player controls on various keyboards.

4. The 1-9 keys allow you to skip to certain percentages in the video, so pressing 1 takes you 10% into the video, pressing 2 takes you 20% into the video, etc.
5. The 0 key takes you to the start of the video. This works both when you’re playing the video and when you have paused it.

You can use these shortcuts on Windows, Mac, and Linux, across Chrome, Firefox, and Microsoft Edge. They also work on YouTube videos embedded on other websites, but their behavior might sometimes be erratic.