YouTube Summarize

One-click AI summaries inside YouTube - no account or API key. Get 3 free summaries every week.

Understand long YouTube videos without leaving the page. YouTube Summarize adds a clean AI Summary panel beside the video. Click once to get concise takeaways, or choose Detailed when you want more context. Free summaries require no account and no API key. FREE PLAN • 3 successful summaries every rolling 7 days • No account or API key required • Failed summaries do not use a free credit BUILT FOR YOUTUBE • Summary appears directly beside or below the video • Choose Concise or Detailed • Works with standard, theater, compact, light, and dark layouts • Collapse or expand the panel at any time • Detects the video's default language when available PRO • Start a free 7-day Pro trial • Unlimited summaries during the trial or with Pro • $2.99 USD monthly or $19.99 USD lifetime • Payments are processed by ExtensionPay and Stripe; Google is not the seller PRIVACY YouTube Summarize only runs on YouTube. When you request a summary, the video URL is sent to Heuristica to generate it. Privacy-minimal analytics, when enabled, measure only anonymous Summarize-button impressions and clicks. They do not include video URLs, titles, transcripts, summaries, searches, email addresses, or payment status. Perfect for lectures, tutorials, podcasts, interviews, research, and deciding whether a long video is worth watching.