Links to websites to help level up your Japanese:
Duolingo
Be shamed by a green owl constantly to motivate you practice and study Japanese.
Jtest4you
Help for passing the JLPT at any level.
Maggie Sensei
With the help of her dogs, she provides copious explanations and help to navigate the Japanese language.
NHK News Web Easy
Read news articles in easy to understand Japanese.
If you have a site that or app that you find very helpful that you would like to share, please feel free to leave a comment!