SubExtract for Students

Convert YouTube lectures, tutorials, and explainer videos into searchable text for note-taking, study guides, and reference material.

Workflows

Convert a 2-hour lecture into searchable notes

  1. Paste the lecture's YouTube URL
  2. Extract the full transcript
  3. Save to your note-taking app (Notion, Obsidian, Apple Notes, etc.)
  4. Now searchable for terms, formulas, or names without rewatching
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Build a study guide from a video series

  1. Use Playlist Videos to extract the playlist's full video list
  2. Extract transcripts for each video in the playlist
  3. Combine into a single document organized by playlist order
  4. Annotate with your own notes — the source material is captured forever
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Citing a tutorial in homework

  1. Extract the tutorial's transcript
  2. Quote the exact instruction or formula with its timestamp
  3. Cite as: 'Creator Name, Video Title, YouTube, [date], [HH:MM:SS]'
  4. Avoids the 'video is gone' problem — your citation is verifiable from the saved transcript
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Recommended tool combinations

Mixed media notes

Combine YouTube tutorial transcripts with web article extracts for unified study notes across video and text sources.

Real-world examples

Searching across a semester's worth of lectures

Extract every lecture from your course's YouTube playlist, save as text files with the lecture date in the filename. Now `grep "derivative"` (or similar text search) finds every mention across the whole semester. Beats scrubbing through video timelines.

Building a personal flashcard deck

Extract a video tutorial's transcript, identify key terms and definitions, paste into Anki or your flashcard app of choice. The video becomes raw material for spaced-repetition study.

Frequently asked questions

Related tools & guides