Knowt

Knowt is an AI-powered study platform that automatically transforms class notes, lecture slides, textbooks, and video lectures into interactive study materials including flashcards, practice tests, and study guides. It is widely used by college and high school students as a free alternative to Quizlet.

The platform's core AI capability is its ability to parse uploaded content — PDFs, PowerPoints, YouTube videos, or typed notes — and automatically generate relevant flashcard sets and practice questions. The AI identifies key terms, concepts, definitions, and relationships in the source material, creating study materials that accurately reflect the original content.

Knowt uses spaced repetition algorithms to optimize review schedules, presenting flashcards at intervals calculated to maximize long-term retention. The practice test feature generates multiple-choice, true/false, and fill-in-the-blank questions from the study material, simulating exam conditions. An explain feature uses AI to provide additional context and explanations for concepts a student is struggling with.

The platform also includes a collaborative notes feature where students can share and discover notes from other students taking the same courses. Knowt imports from Quizlet, Anki, and other flashcard platforms, making migration easy. The tool is available on web, iOS, and Android with cross-device syncing.