データ月 2026-09

CogniTube

Name: CogniTube
Rating: 5 (20 reviews)
Author: cognitube

オフィス・コラボレーション

AIノート・ナレッジ管理

cognitubeTurn any YouTube video into clear summaries, notes and bookmarks — without leaving YouTube.

Chromeに追加 ↗公式サイト ↗

AlphaMoatによると、2026-09時点でChrome拡張機能CogniTubeのユーザー数は79(前月比 -9.2%)、評価は5(20件のレビュー)で、9,324件のAIブラウザ拡張機能中4,610位、オフィス・コラボレーションでは1,839件中958位です。

ユーザー数 · 2026-09

79-9.2%

評価

★ 520

総合順位(9,324件中)

#4,610

オフィス・コラボレーション内の順位

#958/ 1,839

CogniTubeとは

Chromeウェブストアより

Turn any YouTube video into clear summaries, notes and bookmarks — without leaving YouTube. CogniTube uses AI to transform videos into structured summaries you can quickly understand — and lets you add notes and bookmarks to revisit what matters.

Perfect for podcasts, courses, interviews, tutorials, and lectures.

Key features ✅ Instant AI summaries – understand videos in seconds ✅ Timestamped key moments – jump to the most important parts ✅ Add notes to any video – capture insights while watching ✅ 3 summary styles – choose the level of detail you need ✅ Summaries in 15 languages – learn in your preferred language ✅ Personal video library – revisit your saved summaries, notes and bookmarks ✅ Dark mode – comfortable viewing for late-night learning

Full Pro access — free during beta

CogniTube is currently in beta. To give early adopters the full experience, we're giving everyone full Pro access for free — no credit card required, no catch.

Unlimited AI summaries
Access to Quick and Advanced summary styles
Timestamped insights and deeper summaries
Unlimited bookmarks and notes
Personal video library — revisit everything you've saved
Cloud storage & sync across devices
Choose your preferred summary language
Priority Support
Early access to new features

ストアの説明の続きを表示▾

How to use 1. Install CogniTube 2. Open any YouTube video 3. Click the CogniTube icon in the YouTube sidebar 4. Generate your AI summary instantly 5. Save key moments and add notes as you watch

No extra tabs. No copy-pasting. Everything happens inside YouTube.

Ideal for students, researchers, podcast listeners, busy professionals, and anyone who wants to learn through YouTube.

Frequently Asked Questions Q1: Does CogniTube work on any YouTube video? A1: Yes. CogniTube works on most YouTube videos that include transcripts. Q2: Where are my summaries and notes stored? A2: Your summaries, bookmarks and notes are stored locally in your browser by default. With CogniTube Pro, you get cloud storage and sync across devices. Q3: How does the beta period work? A3: During our beta, all users get full Pro access for free — unlimited summaries, bookmarks, and cloud sync. This is our way of saying thank you to early adopters. Q4: Does CogniTube collect personal data? A4: No. CogniTube only processes the video transcript required to generate summaries. We do not store or sell personal data. Q5: Can I choose the language of the summary? A5: Yes. CogniTube supports 15 languages, so you can read summaries in your preferred language.