Quizlet was created in 2005 by Andrew Sutherland — who was just 15 years old at the time — to help himself study French vocabulary. That simple flashcard tool has since grown into one of the most popular study platforms in the world, used by over 60 million students and teachers every month.
At its core, Quizlet is a flashcard platform. Users create study sets with terms and definitions, then practice using various study modes: traditional flashcards, written tests, matching games, and a competitive multiplayer mode called Quizlet Live. The platform hosts hundreds of millions of user-created study sets covering virtually every subject taught in schools and universities.
In recent years, Quizlet has added AI-powered features to move beyond basic flashcards. Q-Chat is an AI tutor that quizzes students conversationally, adapting questions based on their responses. The platform also uses spaced repetition algorithms to optimize study schedules and help learners retain information more effectively.
Quizlet operates on a freemium model — basic flashcard creation and studying are free, while Quizlet Plus adds features like AI-enhanced study tools, ad-free experience, and offline access. The platform is especially popular among high school and college students, and many teachers create and share study sets for their classes. Quizlet’s simplicity is its greatest asset — it takes seconds to start studying, which has kept it relevant for nearly two decades.
