AI quiz generator that finds
what you don't know.
Turn any PDF, notes or lecture into auto-graded quizzes and mock exams in seconds — then see exactly what you got wrong.
What is an AI quiz generator?
An AI quiz generator turns your study material into auto-graded practice questions automatically. With GoodOff, you upload a source — a PDF, your notes, a lecture, or a web page — and its AI reads the material, identifies what matters, and writes accurate multiple-choice and open-ended questions, each with an explanation. You take the quiz, get an instant score, and review every question you missed, so you know exactly what to study next.
Make a quiz from any source
Drop in a file or paste a link. GoodOff turns PDFs, notes, slides, lecture audio, and web pages — or your own flashcard decks — into a quiz.
Quizzing yourself is how you actually learn.
Re-reading feels productive but fades fast. Retrieving an answer under test conditions is what builds durable memory — and a quiz shows you, in black and white, what you have not learned yet.
Retrieval practice
The act of pulling an answer from memory instead of re-reading it. Quizzing is the purest form — and it strengthens memory more than almost anything else.
The testing effect
The well-documented finding that being tested on material makes you remember it better later — even when you get a question wrong.
Active recall
Studying by actively answering questions rather than passively reviewing notes. Quizzes turn every study session into active recall.
Distractors
The wrong options in a multiple-choice question. Good distractors are plausible, so a correct answer reflects real understanding — GoodOff writes them deliberately.
Real questions, graded instantly
GoodOff writes the question types that test real understanding, grades them the moment you answer, and explains every one.
Multiple choice
Four options with thoughtfully written distractors that test understanding, not just recognition.
Open-ended
Free-response questions for the concepts that need explaining in your own words.
Explanation on every question
A clear rationale for the correct answer, so a miss becomes a lesson.
Ways to practice
Mock exam / practice test
A full multi-question test, auto-graded with a score and pass mark — rehearse the real thing.
Retake & review misses
See exactly which questions you got wrong, with explanations, then retake to close the gap.
Timed practice [verify]
Every attempt tracks your time per question so you can pace yourself. (Enforced countdown: verify before launch.)
Quizzes, but it's a game you win.
Turn any quiz into a game with streaks, XP and leagues. And the Knowledge Arena — 1v1 quiz battles with ELO ranking and win streaks — is coming soon. Revision becomes something you come back for.
Create accountGoodOff vs Quizlet vs Gizmo for quizzes
Quizlet and Gizmo each get part of it right. GoodOff generates quizzes from any source, grades them with explanations, and turns practice into a game.
| From your study materials, you get… | GoodOff | Quizlet | Gizmo |
|---|---|---|---|
| AI quizzes from any source (PDF, notes, web page) | ✓ | partial | ✓ |
| Auto-graded mock exams & practice tests | ✓ | partial | ✓ |
| Explanation on every question | ✓ | partial | ✓ |
| Multiple-choice + open-ended questions | ✓ | ✓ | partial |
| 1v1 Arena quiz battles (ELO, leagues) | soon | ✗ | partial |
| Cross-platform (web, iOS, Android) | ✓ | ✓ | partial |
| Trial eligibility | Confirmed per account and selected offer in app | Varies | Varies |
Honest comparison · verify each competitor cell before launch. vs Quizlet · vs Gizmo · vs Knowt
Quizzes for whatever you're prepping for
Exam prep
Generate practice tests for the USMLE, MCAT, SAT, A-Levels, GCSE and AP from your own materials and walk in rehearsed.
Course revision
Turn each lecture into a quick quiz and check you actually understood it before the next class.
Professional certs
Make mock exams from dense PDFs and drill them on web, iOS, or Android between work and the test.
Languages
Quiz yourself on vocab and grammar with multiple-choice questions and instant explanations.
Free quiz generators
Try a generator right now — paste a link or drop a file and see real, auto-graded questions before you make an account.
How to make a quiz with AI in 3 steps
Upload any source
Add a PDF, your notes, slides, a lecture recording, or a web page.
Generate your quiz
GoodOff’s AI writes auto-graded multiple-choice and open-ended questions, each with an explanation, in seconds.
Practice and review
Take the quiz, get an instant score, review every question you missed, and retake it to improve.
Real student reviews, on the way
We're early — verified student quotes and numbers will appear here once we have them. In the meantime, generate a practice quiz from your own notes for free.
Quiz generator FAQ
Is the AI quiz maker free?+
Can I make a quiz from a PDF or my notes?+
What question types can it create?+
Does it make mock exams and practice tests?+
Does it explain the answers?+
Does it find my weak spots?+
Does the quiz app work on mobile?+
The rest of your study kit
A quiz is one output. From the same upload, GoodOff also builds these — all linked to your sources.
Flashcards
Turn the same source into FSRS spaced-repetition flashcards.
Learn more →Spaced Repetition
Schedule reviews so what the quiz surfaced actually sticks.
Learn more →Study Analytics
Track quiz scores over time and spot the topics that need work.
Learn more →Sage AI Tutor
Ask follow-up questions on anything you missed, grounded in your material.
Learn more →Study Guides
Auto-built guides with key concepts and likely exam questions.
Learn more →Podcasts
Turn a source into an audio overview for the commute.
Learn more →Make your first quiz.
Drop in a PDF, your notes, or a lecture and watch it become an auto-graded quiz.