Clickbait Killer — Free YouTube Summary

About

Stop wasting time on clickbait. Clickbait Killer summarizes any YouTube video in seconds using AI, so you get the key information without sitting through 10 minutes of filler.

🎯 How it works
A summary panel appears next to every YouTube video. Click "Summarize" and get a structured summary with TL;DR, key points, and clickbait detection — right in the page.

🆓 Two modes, both free
• Open in LLM (no setup needed) — opens Claude, ChatGPT, Gemini, or Grok with the transcript auto-injected. Just hit Enter.
• Direct summary (API key required) — get streaming AI summaries directly in the YouTube page. Uses your own API key — you only pay what you use (~$0.01/summary with the cheapest models).

🤖 4 AI providers supported
• Anthropic (Claude)
• OpenAI (GPT)
• Google (Gemini)
• xAI (Grok)

🌍 8 languages
Get summaries in French, English, Spanish, German, Italian, Portuguese, Japanese, or Chinese.

✨ Features
• Side panel integrated into YouTube's interface
• Streaming responses — see the summary appear token by token
• Full markdown rendering (headings, bold, lists, etc.)
• Dark & light theme — follows YouTube's theme automatically
• Clickbait detection built into the AI prompt
• Custom model support — enter any model name for future-proofing
• Preferences synced across devices
• Works with YouTube's SPA navigation

💰 100% free & open source
No subscription. No daily limits. No account required. No data collection.
The code is fully open source on GitHub — inspect it, fork it, improve it.

Built with vanilla JavaScript, no framework, no build step. Manifest V3.