
I spent three weeks testing AI quiz generators because I got tired of paying $20/month for what's basically a wrapper on ChatGPT. Some of these tools are actually great. Others generate shallow definition-recall questions and call it a day. Here's what I found.
Look, I get it—you're busy. You don't have time to download 10 tools, upload the same PDF to each, and compare. So I did it for you. I tested 5 AI quiz generators with real study material: a 30-page biology chapter, a lecture slide deck, and a 12-minute lecture audio recording. Here's how they compared.
Quick Answer
- Want a full study system (not just a quiz)? Laxu AI. Quiz + flashcards + notes from one upload. $5/mo.
- Want the most question types? Quizgecko. Powerful but pricey and built for teachers.
- Want something dead simple? Revisely. Clean UI, no extras.
- Want free? NoteGPT. Works, but ads everywhere.
- Already have ChatGPT? Just prompt it. Decent one-off quizzes, zero review system.
What actually matters in an AI quiz generator
After testing all of these, here's what I actually cared about:
- Does it actually help me study? A one-off quiz doesn't do much. You need a retake loop where wrong answers get flagged and come back for review. Without that, you're just making worksheets.
- Can it handle real student inputs? I don't just have text. I have PDFs, lecture slides, audio recordings, sometimes a YouTube link. If I have to copy-paste everything into a text box, it's already wasting my time.
- Are the questions conceptual or just definitions? "What is mitosis?" is weak. "Given this ATP yield, which step of respiration would be most affected if oxygen were limited?" actually tests understanding. Big difference.
- Can I export the wrong answers to flashcards? The whole point is turning gaps in knowledge into study material. If the tool can't do that, it's incomplete.
The apps I tested
1. Laxu AI — Same biology PDF, three study tools in one upload
Laxu AI is the only tool I tested that didn't just give me a quiz. I uploaded the 30-page biology chapter and got back 28 quiz questions, 32 flashcards, AND a summary note — all from one file, in about 90 seconds.
The quiz questions were solid. Mix of multiple choice, true/false, fill-in-the-blank, and short answer. A few actually tested application, not just "what is X." When I got questions wrong, they automatically turned into flashcards for spaced repetition review. That retake loop is the thing nothing else does out of the box.
The bigger surprise: Laxu AI was the only student-facing tool that accepted my audio lecture. It transcribed the 12-minute psychology recording and generated 15 questions that actually tracked the professor's emphasis—including two questions about an analogy the professor used. Other tools couldn't even open the file.
- What I liked: Accepts PDF, photos, audio, YouTube. Four question formats per quiz. Wrong answers auto-become flashcards. Built-in AI tutor explains why answers are wrong. Export to Anki. Works in 5 languages. Native iOS app.
- What I didn't like: Fewer questions per upload than Quizgecko (28 vs 40 on the same chapter). Not built for teachers making assessments for a class.
- Who should use it: Any student studying from real material (PDFs, slides, recorded lectures) who wants one tool that covers the full loop—quiz, flashcards, notes—without running three separate apps.
- Cost: 1 free upload. Then $1.99/week, $4.99/month, or $39.99/year.
Try the AI quiz generator free — no credit card.
2. Quizgecko — Most powerful, built for teachers
Quizgecko is the most technically powerful tool in this test. 10+ question types including matching, ordering, and AI-graded short answers. The biology chapter produced 40 questions, and the quality was noticeably better than basic tools—questions like "Given this ATP yield, which step of respiration would be most affected if oxygen were limited?" instead of simple definition recall.
But here's the thing: it's priced and built for teachers, course creators, and HR teams. The student-relevant plan is $12-15/month, and half the features (API, SCORM export, branded quizzes) are completely wasted on someone studying for finals. If you only need questions from your own material, you're paying for a bunch of stuff you'll never use.
- What I liked: Unmatched question variety. AI grades short-answer responses. High question count per upload. Strong image-based questions.
- What I didn't like: No audio upload. No flashcard or notes ecosystem—just quizzes. UI is cluttered with teacher options. Pricier than it needs to be for a student.
- Who should use it: Grad students writing practice tests, TAs, course creators, or anyone making quizzes to hand to other people.
- Cost: Limited free tier. Paid plans from ~$12/month.
3. Revisely — Dead simple, nothing extra
Revisely has the cleanest student-focused UI in this test. Paste your text or upload a file, pick how many questions, hit generate. Done. No clutter, no teacher features, no upsells in your face.
The biology chapter produced 20 decent multiple-choice questions. Most were correct and useful. A few leaned definitional rather than applied, but nothing terrible. It's exactly what it promises—a clean quiz maker.
The catch: it's narrow. No audio input, no YouTube links, no flashcard export, no spaced repetition. It generates a quiz. That's it. If you want a full study system, you'll be duct-taping Revisely to other tools.
- What I liked: Easiest UI to use. Fast generation. Solid MCQ quality for typed or pasted text.
- What I didn't like: Only text input. No ecosystem around the quiz. Free tier is very limited—you'll hit caps fast.
- Who should use it: Students who only ever work from typed text, don't need audio/image input, and don't want any extra features.
- Cost: Limited free tier. Paid plan around $7/month.
4. NoteGPT — Free, but expect ads
NoteGPT is the most usable free AI quiz tool I found. You can paste a YouTube URL or text, and it spits out a quiz in under a minute. Worth noting: the YouTube-to-quiz function actually works surprisingly well—better than I expected for free.
Question quality on the biology chapter was OK. About 70% of the questions were useful; the rest were shallow or repetitive. Fine for a quick study session, not enough for exam prep.
The trade-off for free is obvious the moment you open it: ads everywhere, pushy upsells, rate limits that kick in after a few uses. It's a decent starting point if you're not ready to commit to a paid tool, but you'll outgrow it fast.
- What I liked: Free tier is actually useful. YouTube-to-quiz works well. No signup friction.
- What I didn't like: Ads every few clicks. Rate limits hit quickly. No retake system, no flashcard export, no spaced repetition. Question quality is inconsistent.
- Who should use it: Students who just need a free quiz generator for occasional use, especially for turning YouTube lectures into practice questions.
- Cost: Free with ads. Paid tier for unlimited generations (~$10/month).
5. ChatGPT (with a custom prompt) — Fine if you like prompting
Yes, you can just use ChatGPT. A good prompt—"Generate 15 multiple-choice questions testing application-level understanding of this text, with answer explanations"—will give you a usable quiz. If you're already paying for ChatGPT Plus, this is the zero-extra-cost option.
The real problem is persistence. The quiz disappears when the conversation ends. No retake, no tracking of which questions you got wrong, no flashcard export, no spaced repetition layer. It's a worksheet for one study session. Good enough for a quick review the night before an exam. Not a study system.
Also, it's awkward with audio and images. You can upload a PDF, but lecture recordings don't work smoothly. Purpose-built tools handle this better.
- What I liked: Free with a basic account (or bundled if you already pay for Plus). Totally customizable via prompts. Can explain any answer in depth if you ask.
- What I didn't like: No persistence. No retake loop. No spaced repetition. Quality depends entirely on how well you prompt. Doesn't handle audio or images well.
- Who should use it: One-off quizzes when you don't want to sign up for anything, or if you're already paying for ChatGPT Plus and don't want another subscription.
- Cost: Free tier works. ChatGPT Plus is $20/month if you want the better model.
Comparison table
| Tool | Best For | Monthly Price | Audio Input | Study System |
|---|---|---|---|---|
| Laxu AI | Full study loop (quiz + flashcards + notes) | $4.99/mo | Yes | ★★★★★ 5/5 |
| Quizgecko | Complex question types | ~$12/mo | No | ★★★★★ 3/5 |
| Revisely | Simple text-based quizzes | ~$7/mo | No | ★★★★★ 2/5 |
| NoteGPT | Free YouTube-to-quiz | Free (ads) | No | ★★★★★ 2/5 |
| ChatGPT | One-off prompts | $20/mo (Plus) | Limited | ★★★★★ 2/5 |
Most "AI quiz generators" are wrappers on ChatGPT
Here's the honest truth: most of these tools are just prompts on top of the same underlying AI models. What separates them is what they do around the quiz—retake tracking, flashcard export, spaced repetition, multimodal input. If you're paying $12-20/month for a tool that only generates quizzes, you're paying for a feature you could get from ChatGPT for free.
The value is in the study system around the quiz, not the quiz itself.
So which one should you actually use?
After testing all of these, here's my honest take:
If you want a quiz that turns into a real study loop: Use Laxu AI. The retake-and-review system (wrong answers → flashcards → spaced repetition) is what actually produces retention. Research by Roediger and Karpicke (2006) showed that this kind of retrieval practice produces 50-80% better long-term retention than passive review. At $5/month, it's the same price as Revisely and less than Quizgecko.
If you're writing practice tests for a class or study group: Quizgecko. The question variety is worth the price if you're making assessments for other people.
If you just want a simple text-to-quiz tool: Revisely. Cleanest UI in the test. But you'll need separate tools for flashcards and review.
If you're not ready to pay anything: NoteGPT. Works free. Expect ads.
If you already pay for ChatGPT Plus: Just prompt it. You won't get a study system, but for one-off quizzes it's fine.
My recommendation
Start with Laxu AI's free upload. Throw a real study PDF at it and see what you get back—quiz, flashcards, and summary notes all from one upload. If the output is useful, $5/month is easily worth it for the whole system. If it's not, Revisely is the clean simple fallback, and NoteGPT is the free fallback.
What I wouldn't do: pay $12+/month for a tool that only makes quizzes when cheaper tools give you flashcards and notes on top. That's the real rip-off in this category.
This guide is also available in Spanish if that's helpful.
Want to try Laxu AI? Upload your first PDF free — no credit card, no commitment. See if the full loop (quiz + flashcards + notes from one upload) is actually useful before you pay anything.
Frequently Asked Questions
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