ReadTube – YouTube to Newsletter Converter

Transform long YouTube videos into readable text summaries and digest them like a newsletter. Perfect for learners who prefer reading over watching, especially for educational content series. Users get periodic summaries of their subscribed channels delivered as a personal newsletter.

YouTube's auto-transcript API and cheap LLM summarization have made this technically trivial to build in 2024, and the "YouTube is too slow, give me the text" sentiment is genuinely common among knowledge workers and learners. The closest substitute is Summarize.tech, plus a handful of Chrome extensions that do one-off summaries, but none deliver a persistent newsletter-style digest tied to specific channel subscriptions. The $500–2k/mo revenue band is realistic for a small niche tool with a freemium or low-ticket subscription, though it implies a ceiling — this is lifestyle business territory, not a scalable SaaS. The biggest risk is retention: once users realize the summaries flatten nuance and miss visual demonstrations that are core to most educational content, churn tends to win.