Some useful networks for learning Japanese

I would like to introduce some useful networks for learning Japanese.

東京外国語大学言語モジュール
http://www.coelang.tufs.ac.jp/mt/ja/

This site is a total web explaining Japanese. But all explanation is written in Japanese.
To learn Grammar, there are 2 courses for self learning. Both are quite helpful. Even N5 level people can study here.

Wikipedia日本語
https://ja.wikipedia.org/wiki/%E6%97%A5%E6%9C%AC%E8%AA%9E

By this site, you can view the outline of Japanese. I covers almost aspects. Even to Japanese, it is worthwhile to see.

Weblio
https://ejje.weblio.jp/

By this site, many Japanese vocabularies and short sentences can be translated in Japanese.
mojinavi
https://mojinavi.com/

By this site, many vocabulary meanings are explained including writing ways.

漢字辞典
https://kanjitisiki.com/

Not only kanji meanings but con structures of kanji are shown.

Additionally, if you would like good Japanese books, I recommend this;
青空文庫
https://www.aozora.gr.jp/index.html