Upload a PDF, paste a YouTube link, or drop in text — koios extracts knowledge and builds quizzes instantly.
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One source at a time. Quizzes are fixed at 10 multiple-choice questions (medium). You get 3 free quizzes here before signing in. After sign-in, Free includes quizzes (with limits) but not project flashcards—Pro adds full flashcard generation. Sign in for full control.
3 of 3 free quizzes left
From content to quiz in under 30 seconds.
Drop a PDF, paste a YouTube link, or type in any text you want to study.
Choose question count, type (MC, T/F, Short Answer), and difficulty level.
Our AI extracts key concepts and generates targeted quiz questions instantly.
Review answers, export your quiz, or jump into interactive quiz mode.