YouTube Playlist Summarizer

YouTube Playlist Summarizer uses Google's Gemini AI to turn entire playlists into structured knowledge — fast. Unlike generic summarizers that tell you what a video is about, this tool extracts the actual content: formulas, definitions, rules, and key insights explained in each video. Perfect for educational playlists, online courses, lectures, and tutorials. Key features: Summarize playlists with up to 5,000 videos Extract real facts and explanations — not just descriptions Choose how many sentences per video (2 to 20) Select a range of videos (e.g. videos 10–25 only) Supports 6 languages: English, Russian, Hebrew, Spanish, German, French Supports formulas Supports online AI explainer chat & definitions, related Google images, and explanations Shows important video timestamps Export all summaries to a Markdown file Powered by Google Gemini 2.5 Flash How it works: Click the extension icon Paste your YouTube playlist URL Enter your free Gemini and YouTube Data API keys Hit Summarize — results appear in a new tab as each video is processed Free API keys: Both API keys are free. Get your Gemini key at aistudio.google.com and your YouTube Data API key at console.cloud.google.com. The free tier covers hundreds of videos per day. Pricing: 14-day free trial. Then $4.95/month or $45/year.