MensorAI: AI Note Taker for YouTube

Free transcript viewer, notes, and AI Q&A for any YouTube video. Build a searchable library of everything you watch.

As of June 2026, MensorAI: AI Note Taker for YouTube has 38 users in the Productivity category.

Usersup 65.2 percent+65.2%
38
38
Ratingno change0%
— reviews
Reviewsno change0%
Version
2.0.3
Manifest V3
90-day change · In the last 90 days this extension 3 version updates.

History

8 snapshots

Tracking since Apr 7, 2026.

39.230.521.8Apr 7, 2026Jun 8, 2026
View as table
DateUsersRatingReviewsVersion
Apr 7, 2026232.0.0
Apr 19, 2026252.0.1
Apr 26, 2026252.0.2
May 3, 2026282.0.2
May 9, 2026322.0.2
May 14, 2026312.0.3
May 20, 2026302.0.3
Jun 8, 2026332.0.3
Now382.0.3

Changelog

  • Apr 19, 2026
    description
    Turn YouTube into a library you can actually search.
    
    MensorAI adds a sidebar to YouTube where you can take notes while you watch, ask the AI questions about the video, and find anything you’ve learned later. No switching tabs. No pausing to scribble things down.
    
    HOW IT WORKS
    
    Open any YouTube video
    Write notes in the sidebar — timestamps are added automatically
    Type /ask-ai to ask the AI anything about the video
    Everything syncs to mensorai.com, searchable from any device
    WHAT’S INSIDE
    
    Speed Mode
    Pick any video and MensorAI pulls out the key insights, quizzes you on them, and helps you walk away
    with notes worth keeping. Takes about 5 minutes.
    
    Timestamped notes
    Every note links back to the exact moment in the video it came from. Click to jump straight there.
    
    AI that actually knows the video
    Ask anything and get an answer based on the full transcript, not a generic response.
    
    Rich text editor
    Slash commands for headings, bullets, and AI. Feels like a lightweight Notion, inside YouTube.
    
    Searchable library
    All your notes, across every video, in one place. Search by keyword, channel, or topic at
    mensorai.com.
    
    Works on Brave, Arc, and Edge too
    Any Chromium browser supports the extension.
    
    GOOD FOR
    
    Students, developers, researchers, and anyone who learns from video and wants to actually hold on to
    what they watch.
    
    Companion to https://www.mensorai.com/
    Turn YouTube into a library you can actually search.
    
    No signup required. Install the extension and start using the transcript viewer and notes editor immediately. Your notes save locally. Sign in when you're ready to unlock AI features and sync across devices.
    
    HOW IT WORKS
    
    Open any YouTube video Read the full transcript and take notes in the sidebar — no account needed Timestamps are added to your notes automatically Sign in to unlock AI features, Speed Mode, and cross-device sync
    
    WHAT'S INSIDE
    
    Transcript viewer Read the full transcript of any video right in the sidebar. Click any line to jump to that moment.
    
    Timestamped notes Every note links back to the exact moment in the video it came from. Click to jump straight there.
    
    Speed Mode Pick any video and MensorAI pulls out the key insights, quizzes you on them, and helps you walk away with notes worth keeping. Takes about 5 minutes.
    
    AI that actually knows the video Ask anything and get an answer based on the full transcript, not a generic response.
    
    Rich text editor Slash commands for headings, bullets, and AI. Feels like a lightweight Notion, inside YouTube.
    
    Searchable library All your notes, across every video, in one place. Search by keyword, channel, or topic at mensorai.com.
    
    Works on Brave, Arc, and Edge too Any Chromium browser supports the extension.
    
    GOOD FOR
    
    Students, developers, researchers, and anyone who learns from video and wants to actually hold on to what they watch.
    
    Companion to https://www.mensorai.com

Permissions & access

Permissions
tabsstoragescriptingcookiesalarms
Host access
https://*.youtube.com/*, https://www.mensorai.com/*

Screenshots

MensorAI: AI Note Taker for YouTube screenshot 1MensorAI: AI Note Taker for YouTube screenshot 2MensorAI: AI Note Taker for YouTube screenshot 3

About

Turn YouTube into a library you can actually search.

No signup required. Install the extension and start using the transcript viewer and notes editor immediately. Your notes save locally. Sign in when you're ready to unlock AI features and sync across devices.

HOW IT WORKS

Open any YouTube video Read the full transcript and take notes in the sidebar — no account needed Timestamps are added to your notes automatically Sign in to unlock AI features, Speed Mode, and cross-device sync

WHAT'S INSIDE

Transcript viewer Read the full transcript of any video right in the sidebar. Click any line to jump to that moment.

Timestamped notes Every note links back to the exact moment in the video it came from. Click to jump straight there.

Speed Mode Pick any video and MensorAI pulls out the key insights, quizzes you on them, and helps you walk away with notes worth keeping. Takes about 5 minutes.

AI that actually knows the video Ask anything and get an answer based on the full transcript, not a generic response.

Rich text editor Slash commands for headings, bullets, and AI. Feels like a lightweight Notion, inside YouTube.

Searchable library All your notes, across every video, in one place. Search by keyword, channel, or topic at mensorai.com.

Works on Brave, Arc, and Edge too Any Chromium browser supports the extension.

GOOD FOR

Students, developers, researchers, and anyone who learns from video and wants to actually hold on to what they watch.

Companion to https://www.mensorai.com

Technical

Version
2.0.3
Manifest
V3
Size
361KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
pfdimkmfbfpajdioeblcknhpfodkebam
Developer ID
ud179cda88dbdd3d6f1c7e28977d43a5e
Developer Email
[email protected]
Created
Jul 30, 2025
Last Updated (Store)
May 7, 2026
Last Scraped
Jun 8, 2026
Website
mensorai.com
Support URL

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Data sourced from the Chrome Web Store · last verified Jun 8, 2026.