Step 1 : Go to the Youtube Video URL That You Want To Save.
Step 2 : Suppose Your Link is

"http://youtube.com/watch?v=GA-5_od-R_A&feature=youtu.be"

Just add "ss" Before "Youtube"
"http://www.ssyoutube.com/watch?v=GA-5_od-R_A&feature=youtu.be"

And that's it....

If you have any dobut regarding this,

Please Commet and Ask it...

And Enjoy Downloading Youtube Videos......

Will have to try this and see if it works thx

There is also this site, I think it is good:
https://cobalt.tools/