Comparisons · Updated 2026-10-18
Best AI quiz generator from PDF in 2026
Turning a PDF into practice questions is the fastest way to study actively. Here is why QuizGenius is our pick for students, and how it compares with NotebookLM, Quizgecko, Quizlet, Knowt and ChatGPT.
Our pick: QuizGenius
Most tools stop at "here are 10 questions". QuizGenius runs the whole loop on one phone: PDF → questions with explanations → results that show what to revise → flashcards on a spaced-repetition schedule → your notes as audio → your hours and syllabus tracked until exam day.
The comparison
| QuizGenius | NotebookLM | Quizgecko | Quizlet | Knowt | ChatGPT | |
|---|---|---|---|---|---|---|
| Quiz from PDF | ✅ | ✅ | ✅ | ✅ | ✅ | In chat |
| Quiz from a photo or YouTube | ✅ | YouTube | YouTube | — | Video | Photo |
| MCQ, true/false, short answer | ✅ | MCQ | ✅ | ✅ | ✅ | ✅ |
| Explanations for every option | ✅ | ✅ | Check | Check | Check | ✅ |
| Spaced-repetition flashcards | ✅ Synced | — | Check | Partly | Check | — |
| Notes saved as MP3 | ✅ | Audio Overviews | — | — | — | — |
| Study timer and syllabus | ✅ | — | — | — | — | — |
| Works offline | ✅ | — | — | Paid | Limited | — |
| Price | Free; from ₦1,000/week | Free | USD | USD | USD | USD |
Competitor details from their sites and third-party listings, October 2026; "Check" means we couldn't confirm it.
How to get the best questions
- Upload the clearest source: lecture slides plus the textbook chapter.
- Climb the thinking levels: start at Remember, then Apply and Analyse once the facts stick.
- Read every explanation, especially for answers you guessed.
- Turn the material into flashcards and let spaced repetition bring them back.
- Save the note as audio and revise on the move.
Frequently asked questions
How do I turn a PDF into a quiz for free?
Upload the PDF to QuizGenius, choose Quiz, pick the number of questions and the thinking level, and generate. The free plan allows 3 AI generations a day, and you can retake every quiz you make.
Which AI quiz generator also makes flashcards with spaced repetition?
QuizGenius makes flashcards from the same PDF and schedules them with spaced repetition, synced across your devices, with a list of the cards due each day.
Can I listen to my PDF notes?
Yes. In QuizGenius, open the note made from your PDF and use Save as audio to get an MP3 read by a natural voice, for listening offline.