According to AlphaMoat, as of 2026-08, the Chrome extension Summario has 10,000 users (+0% MoM), rated 4.9 (138 reviews) — ranked #399 of 9,793 AI browser extensions, and #22 of 342 in Audio.
Summario is a free AI YouTube summarizer that reads the transcript of the video you are watching and generates a summary, key takeaways, clickable timestamps and a watch-or-skip verdict in a sidebar on the YouTube page itself, in under 30 seconds, with chat answers grounded in the transcript and summaries readable in 70+ languages.
Freemium: the free tier covers 1 full summary and 3 quick summaries, and PRO costs $5.75/month billed annually or $7.99/month billed monthly.
Summarize any YouTube video with AI. Get key takeaways, timestamps, and chat — save hours of watch time. ───────────────────────────────────────────── 🎬 SUMMARIO — AI YOUTUBE SUMMARIZER & CHAT ─────────────────────────────────────────────
Summario is a free AI YouTube summarizer for Chrome. It reads the transcript of the video you are watching and generates a summary, key takeaways, clickable timestamps, and a watch-or-skip verdict — in a sidebar on the YouTube page itself, in under 30 seconds.
You can also ask the video questions in chat, and read the summary in any of 70+ languages, whatever language the video was spoken in.
Summarize any YouTube video without leaving YouTube. No copy-pasting transcripts into a chatbot. No tab switching. One click.
───────────────────────────────────────────── 🚀 HOW TO SUMMARIZE A YOUTUBE VIDEO ─────────────────────────────────────────────
1. Install Summario and open any YouTube video. 2. Click "Summarize" in the Summario sidebar widget. 3. Read the quick TL;DR in a few seconds; the full breakdown finishes writing itself underneath.
There is nothing to configure and nothing to paste. Summario detects the video you are on automatically, and it works on standard YouTube videos, Shorts, and YouTube Music.
───────────────────────────────────────────── 📦 WHAT YOU GET FROM EVERY VIDEO ─────────────────────────────────────────────
before you spend 45 minutes
positive / mixed / negative percentage split
───────────────────────────────────────────── ✨ FEATURES ─────────────────────────────────────────────
⚡ QUICK SUMMARY, THEN THE DEEP ONE Summario gives you a TL;DR and the key points within seconds of clicking, while the full breakdown is still being generated. You skim first and go deep only if the video earns it. Most videos do not, which is the entire point.
🧠 FULL AI SUMMARY WITH TIMESTAMPS The complete YouTube summary includes key takeaways, a section-by- section timestamped timeline, and a watch-or-skip verdict. It handles podcasts, lectures, tutorials, interviews, keynotes, and earnings calls — anything with spoken content. Unlike a general-purpose video summarizer, Summario is built only for YouTube, so it reads the player, the chapters, and the comments too.
⏱️ CLICKABLE TIMELINE Every section of the video is timestamped, and clicking a row seeks the player straight to that moment. Long videos collapse to the top moments with a one-click "show all timestamps." You stop scrubbing through two hours to find one quote.
💬 AI CHAT ABOUT THE VIDEO Ask the video anything: "What did they say about pricing?" "Summarize the part after 15:00." "List every company mentioned." "What did I miss?" Every answer is grounded in the video's actual transcript, so it cannot invent things the speaker never said.
👥 AUDIENCE REACTION Summario summarizes the comment section into a verdict with a positive / mixed / negative percentage breakdown. You learn whether the tutorial actually worked for people, or whether the top comment is a correction, without scrolling through a thousand replies.
🌍 SUMMARIES IN 70+ LANGUAGES Watch in one language and read the summary in another. Summario generates summaries in over 70 languages — including Spanish, German, French, Portuguese, Italian, Hindi, Arabic, Chinese, Japanese, Korean, Turkish, Polish, Vietnamese, and Indonesian — regardless of the video's original language. Set it once in settings, or leave it on Auto to follow the video.
📝 TURN VIDEOS INTO NOTES — NOTION & OBSIDIAN EXPORT (Pro) Select any text on a YouTube watch page and press Cmd+Shift+H (Ctrl+Shift+H) to save it as a Highlight, or save any key takeaway with one click. Everything collects at summario.net/highlights, where you can export your knowledge book as PDF or Markdown, or push straight to Notion or Obsidian with Cmd+Shift+S (Ctrl+Shift+S). This is how you turn a YouTube video into study notes you will actually reread.
🎙️ NO CAPTIONS? SUMMARIO TRANSCRIBES IT When a video has no YouTube captions, Summario transcribes the audio with speech-to-text AI and summarizes the result. Videos up to 2 hours are supported on this path.
📬 EMAIL & WHATSAPP DIGESTS (Pro) Subscribe to channels in your Summario account and their new videos arrive already summarized, in your inbox or on WhatsApp. You stay caught up on the channels you care about without opening YouTube.
📚 YOUR SEARCHABLE LIBRARY Every summary is saved to your account at app.summario.net, with the full transcript, your highlights, and the chat history for that video. Nothing you have already summarized is ever lost.
🔄 LIVE CROSS-DEVICE SYNC Summarize a video on your phone or in another tab and the Summario widget on YouTube refreshes in real time to match.
🌗 DARK MODE + LIGHT MODE Auto-matches YouTube's theme, with a manual override in settings.
───────────────────────────────────────────── 👤 WHO USES SUMMARIO ─────────────────────────────────────────────
🎓 Students — turn a 90-minute lecture into study notes 🔬 Researchers — triage 20 videos in the time it takes to watch 1 💼 Professionals — keep up with conference talks and keynotes 🎧 Podcast listeners — get a 2-hour episode in under a minute 💻 Developers — skip to the part of the tutorial that solves it 📈 Investors — find every forward-looking statement in a call 🗣️ Language learners — read along with non-native content 🤔 Anyone deciding what to watch — the verdict answers that first
───────────────────────────────────────────── 💳 FREE VS PRO ─────────────────────────────────────────────
FREE — no card required
PRO — from $5.75/month
$5.75/month billed annually, or $7.99/month billed monthly. Both start with a 3-day free trial and cancel anytime. Current pricing: https://summario.net/pricing
───────────────────────────────────────────── ❓ FREQUENTLY ASKED QUESTIONS ─────────────────────────────────────────────
Q: How do I summarize a YouTube video? A: Install Summario, open the video, and click "Summarize" in the sidebar widget. A TL;DR and key points appear within seconds, followed by the full YouTube summary with timestamps. You do not need to copy the URL, open another site, or paste a transcript anywhere.
Q: Can AI summarize a YouTube video accurately? A: Yes, when it works from the real transcript rather than guessing from the title. Summario reads the video's actual transcript and passes it to state-of-the-art AI models, so takeaways trace back to something that was genuinely said. Accuracy is high for spoken-word content — podcasts, lectures, interviews, news, tutorials. Music videos and content without dialogue will not produce a useful summary.
Q: Can ChatGPT summarize a YouTube video instead? A: A general chatbot can summarize a video only if you fetch the transcript yourself and paste it in, and it has no access to the player, the timestamps, or the comments. Summario is built for the job: it pulls the transcript automatically, renders the summary inside YouTube, links every section back to the exact moment in the video, and lets you ask follow-up questions without re-pasting anything.
Q: Is Summario free? A: Yes. The free tier includes 1 full summary, 3 quick summaries, and 1 AI chat message per day, on videos under 30 minutes, with no credit card. Pro removes every limit, including the video-length limit.
Q: What is the longest video Summario can summarize? A: Free accounts are limited to videos under 30 minutes. On Pro there is no length limit for videos that have captions, so 4-hour podcasts and full conference days work. Videos without captions must be transcribed from audio first, and that path supports videos up to 2 hours.
Q: What if the video has no captions? A: Summario transcribes the audio automatically using speech-to-text AI, then summarizes the transcription. You do not have to do anything differently — it happens in the same click.
Q: Can I get the transcript of a YouTube video? A: Yes. Every video you summarize is saved to your Summario library at app.summario.net with its full transcript, alongside the summary, your highlights, and your chat history for that video.
Q: Can I turn a YouTube video into notes? A: Yes. Save any key takeaway with one click, or select text on the watch page and press Cmd+Shift+H (Ctrl+Shift+H) to capture it as a Highlight. Pro users export the collected notes to Notion, Obsidian, PDF, or Markdown, and Cmd+Shift+S (Ctrl+Shift+S) pushes the latest highlight straight to a preferred destination.
Q: What languages does Summario support? A: Summaries can be generated in over 70 languages regardless of the video's original language, so you can watch in English and read the summary in Spanish, Hindi, or Japanese. The extension interface itself is available in English, Spanish, German, French, and Italian, with more added regularly.
Q: Does Summario work on YouTube Shorts? A: Yes. Summario supports standard YouTube videos, Shorts, and YouTube Music, as long as there is spoken content to summarize.
Q: Does Summario work on livestreams? A: Summario summarizes livestream archives once they are available as recorded videos. Real-time summarization during an ongoing stream may be supported in a future update.
Q: Can I summarize private or unlisted videos? A: Yes — you can summarize any video you are able to watch on YouTube. If you have access to it, Summario can process it.
Q: Can I get video summaries by email or WhatsApp? A: Yes, on Pro. Subscribe to channels in your Summario account and each new video is summarized and delivered automatically to your inbox or WhatsApp.
Q: Do I need an account? A: Yes. An account tracks your daily usage and syncs summaries across your devices. Sign up with Google in one click.
Q: How does Summario handle my privacy? A: Summario only accesses the YouTube page you are currently watching. It does not read your browsing history, your other tabs, or any other website. Video content is processed by AI providers contractually bound not to retain or train on your data. Full privacy policy: https://summario.net/privacy
───────────────────────────────────────────── 🔒 PRIVACY & DATA ─────────────────────────────────────────────
Summario processes the minimum data needed to generate summaries. We do not sell or share your personal data with advertisers or unrelated third parties. We only access the YouTube page you are currently viewing. Full privacy policy: https://summario.net/privacy
───────────────────────────────────────────── ⚖️ YOUTUBE TRADEMARK DISCLAIMER ─────────────────────────────────────────────
Summario is an independent product and is not affiliated with, endorsed by, or sponsored by YouTube or Google LLC. YouTube™ is a trademark of Google LLC. Summario accesses publicly visible YouTube page content via your browser; Summario does not use the YouTube Data API for the core summarization feature.
───────────────────────────────────────────── 📮 SUPPORT ─────────────────────────────────────────────
Questions? Bug reports? Feature requests? Email: [email protected] Web: https://summario.net
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+ CompareData month: 2026-08 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.