Build a Searchable
Lecture Library
Collect lecture captions, search your saved text, and export it to your notes or research tools. For accessible audio without captions, Whisper is available within your plan allowance.
No credit card. First transcript needs no signup.
The Caption Problem
Some lectures have no caption track. Others are restricted or temporarily unavailable. Check the extraction reason before deciding whether to use Whisper.
Use existing captions when available. A captions-only background job sets videos without captions aside and uses no Whisper jobs or minutes.
Choose Whisper for accessible audio without captions. Background jobs require your opt-in. Transcription can contain mistakes, so verify important quotes against the source audio.
The Student Workflow
ChannelScout is the extraction layer. It gets the transcript. Then it hands off to whatever AI tool you already use for deep Q&A.
Paste a lecture URL
Collect available YouTube captions or use Whisper for accessible audio within your plan allowance.
Search & clip what matters
Full-text search across every lecture you've saved. Clip the exact 90-second explanation for flashcards or study notes.
Take the transcript anywhere
Export to NotebookLM, ChatGPT, or your notes app for deep Q&A. ChannelScout hands off a clean transcript so other AI tools can actually work.
ChannelScout → export transcript → NotebookLM / ChatGPT / your notes app
Built for Lecture Research
Works Even Without Captions
For accessible lectures without captions, Whisper can transcribe the audio within your job and minute allowance. It cannot bypass memberships, login requirements, or private-video restrictions.
Clip Builder for Study Notes
Set A and B points around a key definition, worked example, or lecture summary and download that exact clip. Shareable with your study group.
Auto-Collect New Lectures
Follow a professor's YouTube channel to collect available captions from recent lectures, then check new uploads hourly within plan allowances. No manual pasting. Your transcript library grows while you sleep.
Search Your Entire Library
Search the full text of every transcript you've saved across all your notebooks. Find every mention of "marginal utility" or "oxidative phosphorylation" across an entire semester of lectures in seconds.
Permanent Transcript Library
Saved transcripts remain in your Library while your account is active. Come back to a lecture a year later for citations or exam review; it's still there, still searchable.
AI Summaries per Lecture
Click Summarize on any transcript for a structured TL;DR, key takeaways, and notable quotes, powered by Claude AI. Great for building study guides quickly.
How Students Use It
Select Whisper to transcribe accessible lectures without captions within your monthly allowances
Search a whole semester of lectures for a specific concept or definition
Clip a professor's worked example and add it to your flashcard deck
Follow a course channel to collect available captions from recent videos, then check new uploads hourly within plan allowances
Build a searchable transcript library for an entire course or curriculum
Export clean transcripts to NotebookLM or ChatGPT for cross-lecture Q&A
Find the exact timestamp where a topic was introduced for citation
Share a clipped explanation with your study group without scrubbing through the full video
Plan your study collection
Large channel jobs run in the background. You can use saved transcripts while the remaining videos process, and review missing-video reasons in Library > Jobs.
Read the channel extraction guideStart Building Your Lecture Library
Free includes 25 captioned transcripts per month. Whisper has separate job and minute limits. No credit card is required; extraction time depends on the video and service availability.