Any program to organize websites JS files so I can read and study them?

Whenever I look at Javascript on peoples websites(using CTRL - U for Mozzila), it is all bunched up and not organized nicely. Is there any program or site that I can just copy paste and it gets organized into a readable version?

You can paste it into an app like and just press control + Enter to see the unminified code. Im sure there are many other options, though.

That works perfect. Thank you very much. !!! If anyone else knows any other ways also that be good too.