Use Case
Picture this. It's 11 PM the night before your organic chemistry midterm, and you need to find the professor's explanation of nucleophilic substitution from three weeks ago. The lecture ran two hours. You've got four other exams this week. Even at 2x speed, scrubbing through the recording eats an hour, and you're not sure which lecture it was in the first place. That's life for students who rely on recorded lectures with no way to search them. VidNotes fixes it by turning lecture videos into searchable, timestamped transcripts with AI-generated summaries and flashcards. A 90-minute organic chemistry lecture becomes a searchable transcript in under 3 minutes. Instead of rewatching, you search. Instead of scribbling notes, you let the AI pull out the key concepts. You end up with a structured study guide from every lecture, on iOS, web (app.vidnotes.app), and as a Chrome extension, with offline access and export to PDF, TXT, or Markdown for whatever tools you prefer.
You miss key points while trying to take notes and listen simultaneously
VidNotes transcribes the whole lecture automatically with Whisper-powered AI, so you can focus on understanding in class and read the full transcript later. Every word gets captured with timestamps, so you never lose a definition, formula, or example because you were busy writing something else down.
Finding a specific explanation means scrubbing through hours of video
Search the transcript for any keyword and tap the timestamp to jump straight to that moment in the recording. Need every time the professor said 'equilibrium'? One search pulls up all of them with their exact positions in the lecture. No more guessing or skimming.
Creating study materials from recordings takes almost as long as the lecture itself
VidNotes auto-generates summaries and flashcards from the transcript using OpenAI. A one-hour lecture turns into a tight summary and a deck of question-answer flashcards in under 30 seconds. You get exam-ready study materials right away instead of spending hours building them by hand.
Record the lecture on your phone, grab the MP4 from your course platform (Canvas, Blackboard, Moodle), or paste the YouTube link if the lecture is published online. VidNotes accepts any video format and imports from iCloud, Google Drive, and Dropbox.
VidNotes runs the audio through Whisper AI for local files, or the VidNavigator API for YouTube videos. A 60-minute lecture usually transcribes in 2-3 minutes for local files. For YouTube videos with existing captions, the transcript is ready in seconds with full timestamp alignment.
Tap to get AI summaries for a quick overview of the lecture's key points, plus flashcards for active recall. Use AI Chat to ask specific questions like 'What were the three conditions for equilibrium?' and get answers with citations to the exact moment in the lecture.
Run flashcards on the bus, search transcripts the night before exams, and export summaries as PDFs to share with your study group. All data stays on your device via SwiftData, so you can review offline in the library, on the train, or anywhere without an internet connection.
University students face a specific kind of pain: dense information delivered in long video form, with the expectation that you'll retain it for exams and apply it in assignments. Traditional note-taking forces a trade-off between listening and writing. Recording solves the capture problem and creates a review problem instead. Nobody has time to rewatch every lecture. A typical full-time student sits through 15-20 hours of lectures per week. Even at 2x speed, reviewing all of it costs 7-10 hours, which doesn't leave much room for actual studying, problem sets, or writing.
VidNotes kills the trade-off. The transcript captures everything said, timestamps make it navigable, and the AI features turn raw content into structured study materials. A two-hour organic chemistry lecture becomes a searchable transcript, a one-page summary of key reactions, and a deck of 25-30 flashcards covering the terminology from that session. What used to eat an entire evening of manual transcription and card creation now takes about three minutes of processing time.
Flashcard generation is especially useful for exam prep. Instead of spending hours building Anki cards by hand, VidNotes generates question-answer pairs from the transcript on its own. Review them on your commute, tweak the ones that need it, and spend your study time understanding rather than transcribing. Students prepping for cumulative finals can generate flashcards from an entire semester of lectures and end up with a full review deck without having written a single card themselves.
AI Chat adds another layer. Instead of re-reading a whole transcript to find where the professor covered a concept, ask a direct question and get a synthesized answer with references to the specific timestamps. Handy when you're writing papers or working on problem sets that pull from multiple lectures across the semester.
Start with a free account. Paste a video link and see it in action.