Free AI Tools for active recall

Flashka is an AI flashcard and quiz study tool that helps students learn faster with spaced repetition and highlight-based card generation.

Mindgrasp is an AI study tool that turns lectures and documents into notes, flashcards, quizzes, summaries, and a 24/7 AI tutor.

Knowt is a free AI study platform for flashcards, notes, quizzes, and lecture or PDF summarization, positioned as a Quizlet alternative.