I manually made some decks for my personal use outta
JLPTSensei.com's grammar flashcards and book (except N1). Figured I'd share them here.
One caveat though is there's 1 grammar point missing from N5 and 2 from N3. I'd appreciate it if someone downloaded the decks and checked out
https://jlptsensei.com/jlpt-n3-grammar-list/ and
https://jlptsensei.com/jlpt-n5-grammar-list/ to find the missing grammar points, and I will then add them.