Excalidraw
"Excalidraw is a whiteboard tool that lets you easily sketch diagrams with a hand-drawn feel."
Tag: tool 
Tag: tool
"Excalidraw is a whiteboard tool that lets you easily sketch diagrams with a hand-drawn feel."
Yomichan is a browser extension that helps you learn Japanese by adding english definition lookup for Japanese text. It also offers stroke order and can create cards in Anki.
The idea is you read Japanese sites and lean on Yomichan and Anki to aid in learning words you don't know.