Video Summarizer for YouTube

Adds a button to the YouTube player that sends the video transcript to ChatGPT or Claude for an instant summary. No API keys.

Watch less, learn more. This extension adds a small ✨ button to the YouTube player bar. Click it and: 1. The video's transcript is extracted instantly — right in your browser. 2. A ChatGPT or Claude tab opens with the transcript and your prompt already filled in and submitted. 3. Your summary streams in your own chat, under your own account. WHY IT'S DIFFERENT • No API keys, no subscription, no separate account — it uses the ChatGPT or Claude web app you're already logged into. • Nothing is sent anywhere except by your own chat session. No servers, no analytics, no tracking. • Customizable prompt: change what gets asked (language, format, depth) in Settings with {title}, {channel}, {url}, {transcript} placeholders. • Works with manual and auto-generated captions, in any language YouTube captions support. HOW TO USE 1. Open any YouTube video. 2. Click the ✨ button in the player controls (next to the settings gear). 3. Read your summary in the chat tab that opens. Choose ChatGPT or Claude in the extension's Settings (click the extension icon). Note: this extension is not affiliated with or endorsed by YouTube/Google, OpenAI, or Anthropic. It requires a free ChatGPT or Claude account.