YouLearn

YouLearn is an AI-powered study tool that transforms any learning material — PDFs, YouTube videos, lecture recordings, or web links — into structured notes, flashcards, quizzes, and an interactive study chat. With over 2 million users and backing from Y Combinator, it has become one of the most widely used AI study tools for students, professionals, and self-learners worldwide.

The workflow is simple: paste a YouTube link, upload a PDF or lecture slide deck, and YouLearn processes the content and returns a clean set of notes, a summary, and a quiz to test your understanding. The study chat lets you ask questions about the material as if you were talking to a tutor — "explain the second point in simpler terms", "what was the main argument of chapter 3" — and get grounded, cited answers.

Podcast mode converts any source material into a spoken-word summary you can listen to while commuting or exercising, making passive learning effortless. YouLearn has been recognized as a White House AI partner and is used by students at leading universities globally. The free plan covers basic usage; paid plans unlock unlimited uploads, longer documents, and priority processing.