If you want to watch online cartoons net then below are some platforms where you can watch cartoons for free of cost:-
1. YouTube- This is one of the largest streaming platforms and it also contains carious cartoons which you can watch for free and it also has a very user friendly interface.
2. AnimeFreak- This platform primarily focuses on anime series and movies and it is also very easy to navigate.
3. WatchCartoonOnline.cc- This platform also has a wide range of cartoons and anime with a very simple interface.