Start with your material. End with a way to study it.
Choose a workflow for the PDF, lecture, recording, video, photo, or note in front of you. Every tool keeps the source connected to the active-recall practice that comes next.
Choose your starting point
Focused tools for real study workflows
These are not isolated generators. Each workflow creates a note that stays connected to its source and the different ways you can understand and remember it.
Turn any PDF into flashcards you can actually study
Import your lecture slides, textbook chapter, or reading. BrainDen organizes the material into a connected note, then helps you review the important ideas as question-and-answer flashcards instead of rereading the entire file.
Explore this workflowTurn a long PDF into structured study notes
Stop switching between an isolated summary and the file it came from. BrainDen turns your PDF into an organized note while keeping the source available for highlighting, comments, verification, and deeper study.
Explore this workflowTurn your PDF into a practice quiz
A file can feel familiar after several readings without being retrievable in an exam. Import your PDF into BrainDen, organize the material, and use practice questions to find what you know and what still needs attention.
Explore this workflowTurn a YouTube video into notes you can study
Educational videos are useful, but scrubbing through the same timeline is a slow revision method. Paste a YouTube link into BrainDen to create a structured note, then turn the ideas into active study instead of another passive rewatch.
Explore this workflowTurn a lecture recording into notes while you focus on class
Capture the lecture, keep a visible recording indicator on screen, and let BrainDen transform the session into a structured note. You can retain the transcript for study and choose whether the original recording should remain after processing.
Explore this workflowTurn an audio recording into organized study notes
Upload a recording you are permitted to use and transform spoken explanations into a transcript and structured note. BrainDen keeps the material together so you can clarify details and continue studying without replaying every minute.
Explore this workflowTurn handwritten notes into flashcards without retyping them
Photograph the notes you already made, turn them into an editable digital note, and practise the key ideas as flashcards. Your handwriting remains the source while BrainDen gives it a searchable, reusable study structure.
Explore this workflowTurn your study notes into a connected mind map
A linear note is useful for detail, but some topics make more sense as a network. BrainDen turns the concepts in your note into a visual map so you can inspect hierarchy, follow relationships, and decide what needs deeper explanation.
Explore this workflowYour first study system can start with one file.
Create your first BrainDen note for free, then choose the way you want to understand and remember it.