Knowt is an AI powered study platform that serves as a free alternative to Quizlet, enabling users to generate flashcards, quizzes, and study guides from lectures, PDFs, and notes. It supports uploads of various file types including videos, audio, PowerPoints, and Word documents, processing them through natural language processing to extract key concepts and create active recall materials. The platform includes a library of over 5 million user generated resources and integrates with Quizlet for easy import of existing sets.

Core features encompass the AI Lecture Notetaker, which records and summarizes lectures into notes, flashcards, quizzes, and games. The AI PDF Summarizer converts readings or slides into structured study guides with interactive elements. Snap & Solve provides step by step solutions to photographed problems, including practice exercises and video explanations. Notes to Active Recall organizes handwritten or digital notes into quizzes and flashcards.

Flashcard functionalities offer multiple study modes such as Learn Mode with customizable question types, spaced repetition for long term retention, matching games, practice tests, and sorting. Voice Tutoring via the AI assistant Kai delivers oral quizzes or generates podcasts from uploaded content, explaining errors in real time. The AP Exam Hub supplies subject specific study guides, practice tests, free response questions with auto grading, and a score calculator.

Knowt maintains a free model with unlimited access to study modes and AI tools, contrasting with competitors like Quizlet, which restricts features such as unlimited practice tests and advanced learn modes behind a paid subscription. Against Anki, Knowt provides simpler AI driven content creation without requiring manual deck building. Recent 2025 reviews on Reddit and Trustpilot note its effectiveness for AP preparation, though some users report occasional inaccuracies in AI generated questions for complex topics.

The platform targets high school and college students, particularly for exam prep, with mobile apps available on iOS and Android. Users appreciate the no cost access and community resources but mention dependency on internet connectivity and limited multilingual support. For implementation, begin by importing a Quizlet set or uploading a lecture file to generate initial materials, then utilize spaced repetition daily for optimal retention.