So many of these sites exist. I even made one as a hobby project for learning React. Mine is a bit more involved (learn mode with mnemonics, quiz mode with a ti

So many of these sites exist. I even made one as a hobby project for learning React. Mine is a bit more involved (learn mode with mnemonics, quiz mode with a timer and different fonts, character filtering and modified characters). Thinking about expanding on it if anyone would like to suggest ideas or fork it. I mostly made it to force me to learn Katakana and Hiragana. https://github.com/fama-623/Kana-Cards https://github.com/fama-623/Kana-Cards