YouTube keyboard shortcuts
Play and pause a video
Press the space bar or the 'k' key on your keyboard to play and pause a video.
Jump to start of a video
Pressing the 0 (zero) key on your keyboard will jump to the beginning of a video. The home key also works for jumping to the start of a video.
Jump to the end of a video or go to the next video
Pressing the end key on your keyboard will go to the end of the video. If you are playing a playlist, it goes to the next video in the playlist.
Skip or jump in the video
Fast forward or rewind --
If you want to fast forward or rewind in increments of five seconds, press the left or right arrow keys. If you need to jump more than five seconds hold down the Ctrl keyand press the arrow key for the direction you want to jump in ten second increments.
Skip to video sections --
Pressing the number keys from 1 to 9 seeks (jumps) to that percentage of the video. In other words 1 jumps to 10%, 2 jumps to 20%, 3 jumps to 30%, etc.
Make the video full-screen
Pressing 'f' on the keyboard switches between full-screen and normal mode.
Turn up and down the volume
Pressing the up or down arrow keys turns up and down the volume of the video. If you are turning down the volume and continue to hold the down arrow key, it will eventually mute the volume.
YouTube Lean Back
YouTube also has a feature called YouTube Lean Back that allows you to navigate YouTube without using a mouse.