japanesereadingpractice.com/jlpt/vocabulary
Guide to JLPT vocabulary requirements by level with word counts, estimated study hours, pass rates, example words, and learning methods including spaced repetition and extensive reading.
VocabularyJLPT and other testsReading practiceSpaced repetitionGraded readersJLPTJLPT N5JLPT N1JLPT N3JLPT N4