- Nick.com: This is the official website for Nickelodeon, the channel that originally aired Danny Phantom. You can watch full episodes of the show on Nick.com for free, but you will need to create a free account.
- YouTube: There are many YouTube channels that have uploaded full episodes of Danny Phantom. Some of these channels include "The Official Nickelodeon YouTube Channel," "NickRewind," and "Danny Phantom Official."
- Amazon Prime Video: Amazon Prime Video offers a subscription service that allows you to watch Danny Phantom and other shows and movies online.
- Hulu: Hulu is a subscription service that offers a wide variety of TV shows and movies, including Danny Phantom.
- Google Play: Google Play offers a variety of TV shows and movies for purchase, including Danny Phantom.
- Vudu: Vudu is a streaming service that offers a variety of TV shows and movies, including Danny Phantom.
- iTunes: iTunes is a store that offers a variety of TV shows and movies for purchase, including Danny Phantom.