Free AI Test Maker from PDF
Build a free practice test from your own PDF: multiple-choice and written questions in one paper, so you can check exam readiness rather than just recognition.
Upload your PDFFree AI test maker from PDF
Calten is a free AI test maker that converts any PDF into a structured practice test. Upload your document and generate MCQs and open-ended questions instantly — no payment required.
Practice questions from your reading
Calten creates multiple-choice and open questions from your reading so you can check what you remember and practise explaining key ideas.
Skips bibliography, appendix, and index
Calten automatically detects and ignores low-value sections of your PDF — bibliography, references, about the author pages, appendix, and index. Questions are only drawn from the meaningful study content in your document.
Complete practice tests with MCQs and written questions
Generate full-length tests covering both multiple-choice and descriptive formats from the same PDF upload, giving you a more complete check of your understanding. Need something lighter? Generate a quick quiz from your PDF instead.
Test yourself on your actual material
Unlike generic question banks, Calten generates questions from your specific document. You're tested on what you actually studied — not on approximate topic coverage from an unrelated source. There are no hidden charges or daily limits — generate practice tests from your own material as often as you need. Read the guide on how to generate questions from a PDF to see the full process.
Built for exam-style preparation
A test maker is for the stage where you already know the material and need to prove it under conditions closer to the real thing. Calten mixes objective and written questions in the same paper, so a single sitting tests both precise recall and your ability to explain a concept in your own words — the two things most exams combine.
How the two question types work together
Multiple-choice questions tell you whether you can recognise the right answer. Open-ended questions tell you whether you can produce it unaided. Passing the first does not guarantee the second, which is why judging a topic by MCQs alone tends to overstate how well you know it. Running both in one test gives you an honest picture before an exam does.
A practical way to use it
Work through a chapter or a set of lecture notes, then generate a test from that material and answer it without notes. Mark what you missed and reread only those sections, then generate again from the same PDF. Repeating that loop on the same document is a more reliable measure of readiness than rereading, because the questions change each time you generate them.
What this is not
Calten does not use past papers and does not reproduce your institution's exam format. It generates questions from the document you provide, so the test covers exactly the material you uploaded — nothing broader, and nothing you have not read.
A real Calten example: capillary action
Source PDF
A one-page PDF explaining capillary action, with a source list and author credit. In this recorded generation, Calten produced four questions about the concept and none about the source list or author.
Generated questions
- How does the width of a tube affect the rise of water?
- Explain the mechanism of capillary action in a narrow glass tube.
Frequently asked questions about the AI test maker
- What is the difference between this and the quiz generator?
The AI quiz generator is built for quick, repeated self-testing after reading. The test maker is built for exam-style assessment: a longer paper that combines multiple-choice and written questions so you can judge readiness, not just recall.
- Does it generate written questions, or only multiple-choice?
Both. Each test combines multiple-choice questions — four options and one correct answer — with open-ended questions that require a written explanation. Testing both formats is what makes the result a fair check of understanding.
- Can I use it to prepare for a specific exam?
Yes, as long as the material is in a PDF you can upload. Calten generates questions from that document, so uploading your syllabus text, textbook chapters, or lecture notes produces a test on exactly that content. It does not use past papers or reproduce a specific exam board's format.
- Is it really free, with no hidden limits?
Yes. There is no subscription, no credit card, and no daily cap on how many tests you generate. A free account is optional and only adds saved tests and progress tracking.
- How large a document can I turn into a test?
Any text-based PDF up to 500 MB. Long books are processed in sections, so the first questions are ready to answer before the whole document has finished generating.
- Are the questions the same every time I generate a test?
No. Generating again from the same PDF produces a fresh set of questions, which is what makes retesting useful — you are answering rather than remembering your previous answers.