Active recall, on your own material
Re-reading feels like studying; retrieval is studying. CruxDoc gives you three ways to pull knowledge out of your head instead of pouring it past your eyes: exam-mode quizzes, graded blurting, and spaced-repetition flashcards, all generated from what you upload.
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PDF, Word, PowerPoint, text, images, audio or video. Up to 20 MB and 50 pages. No account needed for your first one.
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Three retrieval methods, one upload
Quiz yourself under exam conditions
Questions come one at a time with the source closed; every answer links to its page for the review pass.
Blurt
Write everything you remember; CruxDoc grades it against the document and shows exactly what you missed.
Drill flashcards on a schedule
Spaced repetition decides what you see today. Missed cards return sooner; known cards drift out.
The honest feedback loop
Active recall only works when the checking step is honest, and that is the step people skip: you quiz yourself, feel roughly right, and move on. CruxDoc does the checking against the document itself, so "what do I still not know?" gets a concrete answer with page numbers, not a feeling.
Missed material feeds back into flashcards, and the loop repeats until the gaps are gone.
Frequently asked questions
Q.01What is active recall?
Studying by retrieving information from memory instead of re-reading it: answering questions, writing out what you remember, testing yourself. Retrieval is the part that strengthens memory, which is why it consistently outperforms passive review in learning research.
Q.02Why is active recall better than re-reading?
Re-reading feels productive because the material becomes familiar, but familiarity is not recall. Being made to produce an answer, and failing, then correcting, is what builds durable memory. Testing yourself also reveals what you do not know while there is still time to fix it.
Q.03How do I use active recall with my own notes?
Upload your notes, slides, or textbook chapter to CruxDoc and use any of the three built-in retrieval methods: generate an exam-mode quiz, blurt everything you remember and have it graded against the source, or review generated flashcards on a spaced-repetition schedule.
Q.04What makes CruxDoc different from a quiz app?
Everything is generated from your actual material and anchored to it: a missed quiz question links to the page the answer lives on, a graded blurt names exactly which points you missed and where they are, and any doubtful flashcard can be checked against its source before you drill it.
Q.05Is it free?
Yes. Quizzes, blurting, and flashcards are all part of the free plan, and your first document needs no account at all.
Try active recall on your material
Drop a document to get started
PDF, Word, PowerPoint, text, images, audio or video. Up to 20 MB and 50 pages. Free. No account needed for your first one.
Processing continues if you close the tab.
No account needed for your first document.