How to go frame by frame on Youtube?

So, how to go frame by frame on Youtube?

In fact, it is really easy, you just should know a handy Youtube shortcut.

Just use , . or < > keys on your keyboard, while Youtube video is paused.

– To inch forward frame by frame, press the full stop key.

– To inch backwards frame by frame, press the comma key.

Here is the question on Google support forum.

And here are the best answers.