Chrome youtube extension

[TrafficMaster]

Hello,

What is the BEST or the "go to" youtube extension for Chrome that allows you to easily store YT vids for watching later or offline?

I have W10 on my laptop, and would like to Download a bunch of YT clips to watch when I do not have internetz access.

Danke...!

 

[KIA]

Not permitted by Google.

http://www.clipconverter.cc/
keepvid.com

 

[linwelin]

http://www.videograbby.com/ is pritty good, never failed me.