SubExtract for Content Creators

Pull transcripts, captions, and comments from your videos and your competitors' — repurpose into blog posts, scripts, and social content faster.

Workflows

Video → Blog Post Pipeline

  1. Extract the YouTube video's transcript with timestamps
  2. Edit the raw text into a structured outline (intro, sections, takeaways)
  3. Add screenshots from key moments using the timestamps as guides
  4. Publish as a blog post optimized around the same topic the video covers
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Competitor Content Audit

  1. Use Channel Videos to pull a competitor's full upload list
  2. Sort by view count to identify their top-performing content
  3. Extract transcripts and comments from the top 10 to spot recurring topics and audience pain points
  4. Use the gaps to plan your own video lineup
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Comment-Driven Content Ideas

  1. Extract comments from your most popular video as CSV
  2. Sort by like count to surface the highest-engagement comments
  3. Identify recurring questions and complaints — those are content opportunities
  4. Make follow-up videos answering the top 3-5 themes
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Recommended tool combinations

YouTube research stack

Combine these three when auditing a competitor channel — transcripts to understand the content, comments to read the audience, channel list to map their library.

Real-world examples

Pulling a video's hooks for short-form

Extract a 30-minute YouTube video's transcript, scan for moments where viewer retention spiked (you'll see them in your YouTube Studio analytics), grab the 30-60 second segments around those timestamps, and use them as the basis for TikTok and Instagram Reel scripts.

Mining competitor comment sections

Export 500+ comments from a competitor's top video, filter for questions, and answer them in your own video. Audience already exists — they're hungry for the answer your competitor didn't give.

Frequently asked questions

Related tools & guides