Extension Tracker

Kortex NotebookLM: Gemini Notebook Toolkit

100,000 users Rated 4.47 from 416 ratings Last updated 11 Nov 2026

By yakshgandhi1 Live in the Chrome Web Store hdapplggdhndkblofffknpmnnnnbncbn Search Google ↗ Last checked 12 Nov 2026, 05:42 UTC

The listing

What the Chrome Web Store shows, as of the last check

Keep Gemini Notebook organized: save AI chats, pages and YouTube in one click, sort notebooks into folders, export chats to PDF.Summary from the listing
Developer
yakshgandhi1
Enhanced Safe Browsing
Trusted. What this means →
Category
Productivity › Tools
First published
16 Aug 2025
Last updated
11 Nov 2026
Version
2.5.1
Size
8.92 MiB
Minimum Chrome
88
Languages
15 languages

Deutsch, English, Indonesia, Tiếng Việt, Türkçe, español, français, italiano, português (Brasil), русский, हिन्दी, 中文（中国）, 中文（台灣）, 日本語, 한국어

Website
kortex-notebooklm.com
See Chrome Web Store page ↗ View its code or download CRX ↗
Users over time As shown on the Chrome Web Store
98K100K102KTracking began 27 Sep 202627 Sep4 Oct11 Oct18 Oct25 Oct1 Nov8 Nov2026-09-27: 100,000 users2026-10-01: 100,000 users2026-10-07: 100,000 users2026-10-09: 100,000 users2026-10-15: 100,000 users2026-10-23: 100,000 users2026-10-30: 100,000 users2026-11-05: 100,000 users2026-11-11: 100,000 users2026-11-12: 100,000 users2026-11-12: new version2026-11-11: new version2026-10-30: new version2026-10-09: new version2026-10-07: new version2026-10-01: new version100,00098K100K102KTracking began27 Sep18 Oct8 Nov2026-09-27: 100,000 users2026-10-01: 100,000 users2026-10-07: 100,000 users2026-10-09: 100,000 users2026-10-15: 100,000 users2026-10-23: 100,000 users2026-10-30: 100,000 users2026-11-05: 100,000 users2026-11-11: 100,000 users2026-11-12: 100,000 users2026-11-12: new version2026-11-11: new version2026-10-30: new version2026-10-09: new version2026-10-07: new version2026-10-01: new version100K
Average rating
4.404.6027 Sep11 Oct25 Oct8 Nov4.474.404.6027 Sep18 Oct8 Nov4.47
Number of ratings
38040027 Sep11 Oct25 Oct8 Nov41638040027 Sep18 Oct8 Nov416
New version One point per check. Source: the extension's public Chrome Web Store listing.
Show the numbers
CheckedUsersRatingRatings
2026-11-12100,0004.47416
2026-11-11100,0004.47416
2026-11-05100,0004.48410
2026-10-30100,0004.40400
2026-10-23100,0004.40388
2026-10-15100,0004.51375
2026-10-09100,0004.71373
2026-10-07100,0004.71372
2026-10-01100,0004.71371
2026-09-27100,0004.71371
Users, 7 days
No change
since a week ago
Users, 30 days
No change
+0.0%
Rank
#1,054
by users, of 292,131 extensions
In its category
#200
of 115,641 in Tools

What changed

Every change found on a check, newest first

  1. New version 2.5.1, replacing 2.5.0.

  2. New version 2.5.0, replacing 2.3.7.

    Added the permission offscreen.

    Now listed in 15 languages, from 14.

  3. New version 2.3.7, replacing 2.3.6.

    The summary on the listing changed.

    Now listed in 14 languages, from 8.

  4. New version 2.3.6, replacing 2.3.5.

  5. New version 2.3.5, replacing 2.3.4.

    Renamed from “Kortex NotebookLM: Best Gemini Notebook Toolkit” to “Kortex NotebookLM: Gemini Notebook Toolkit”.

    The summary on the listing changed.

    Added the permission sidePanel.

  6. New version 2.3.4, replacing 2.3.3.

    Renamed from “Kortex Notebook: Best Gemini NotebookLM Toolkit” to “Kortex NotebookLM: Best Gemini Notebook Toolkit”.

Developer history

Moves to another publisher account and new contact emails, newest first

No move to another account and no new contact email since tracking began on 27 Sep 2026.

We know contact emails only by a keyed hash, so they're never shown. Recent account and contact changes →

What it can access

From the extension's manifest, in plain language

Every websiteIt can read and change your data on all the sites you visit.
Sites
  • http://*/*Every website
  • https://*.genspark.im/*genspark.im and its subdomains
  • https://*.google.com/*google.com and its subdomains
  • https://*.googleusercontent.com/*googleusercontent.com and its subdomains
  • https://*.grok.com/*grok.com and its subdomains
  • https://*.r2.cloudflarestorage.com/*r2.cloudflarestorage.com and its subdomains
  • https://*/*Every website
  • https://app.gistr.so/*app.gistr.so
  • https://chat.getmerlin.in/*chat.getmerlin.in
  • https://chat.openai.com/*chat.openai.com
  • https://chatgpt.com/*chatgpt.com
  • https://claude.ai/*claude.ai
  • https://genspark.ai/*genspark.ai
  • https://getmerlin.in/*getmerlin.in
  • https://gistr.so/*gistr.so
  • https://linkedin.com/*linkedin.com
  • https://openevidence.com/*openevidence.com
  • https://reddit.com/*reddit.com
  • https://twitter.com/*twitter.com
  • https://www.genspark.ai/*www.genspark.ai
  • https://www.getmerlin.in/*www.getmerlin.in
  • https://www.gistr.so/*www.gistr.so
  • https://www.kimi.com/*www.kimi.com
  • https://www.linkedin.com/*www.linkedin.com
  • https://www.openevidence.com/*www.openevidence.com
  • https://www.perplexity.ai/*www.perplexity.ai
  • https://www.reddit.com/*www.reddit.com
  • https://www.youtube.com/*www.youtube.com
  • https://x.com/*x.com
  • https://youtube.com/*youtube.com
Sites where it runs scripts
  • https://app.gistr.so/*app.gistr.so
  • https://chat.getmerlin.in/*chat.getmerlin.in
  • https://chat.openai.com/*chat.openai.com
  • https://chatgpt.com/*chatgpt.com
  • https://claude.ai/*claude.ai
  • https://docs.google.com/*docs.google.com
  • https://gemini.google.com/*gemini.google.com
  • https://genspark.ai/*genspark.ai
  • https://genspark.im/*genspark.im
  • https://getmerlin.in/*getmerlin.in
  • https://gistr.so/*gistr.so
  • https://grok.com/*grok.com
  • https://kimi.com/*kimi.com
  • https://kimi.moonshot.cn/*kimi.moonshot.cn
  • https://linkedin.com/*linkedin.com
  • https://notebook.google.com/*notebook.google.com
  • https://notebooklm.google.com/*notebooklm.google.com
  • https://openevidence.com/*openevidence.com
  • https://reddit.com/*reddit.com
  • https://twitter.com/*twitter.com
  • https://www.genspark.ai/*www.genspark.ai
  • https://www.genspark.im/*www.genspark.im
  • https://www.getmerlin.in/*www.getmerlin.in
  • https://www.gistr.so/*www.gistr.so
  • https://www.kimi.com/*www.kimi.com
  • https://www.linkedin.com/*www.linkedin.com
  • https://www.openevidence.com/*www.openevidence.com
  • https://www.perplexity.ai/*www.perplexity.ai
  • https://www.reddit.com/*www.reddit.com
  • https://www.youtube.com/*www.youtube.com
  • https://x.com/*x.com
  • https://youtube.com/*youtube.com
Browser features
  • activeTabThe tab you're on, only after you click the extension
  • alarmsRun tasks on a schedule
  • contextMenusAdd items to the right-click menu
  • debuggerUse Chrome's debugger on your tabs, which gives full control of their pages
  • downloadsManage your downloads
  • identitySign you in with your Google account
  • offscreenOpen a hidden page for background work
  • scriptingRun scripts on sites it can reach
  • sidePanelShow a side panel
  • storageSave settings and data in your browser
  • unlimitedStorageStore more data than the usual limit

More from this developer

Other extensions from the same publisher account

ExtensionUsersRatingRatingsCategory
Lexi9 5.002 Education
All 2 extensions by yakshgandhi1 →

About this data

Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 12 Nov 2026, 05:42 UTC; next check around 19 Nov 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “Kortex NotebookLM: Gemini Notebook Toolkit” (hdapplggdhndkblofffknpmnnnnbncbn). Chrome Web Store data, last checked 2026-11-12. https://extensiontracker.com/extension/hdapplggdhndkblofffknpmnnnnbncbn. Accessed 2026-11-13.
BibTeX
@misc{extensiontracker_hdapplggdhndkblofffknpmnnnnbncbn,
  title   = {Kortex NotebookLM: Gemini Notebook Toolkit (hdapplggdhndkblofffknpmnnnnbncbn)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-12},
  url     = {https://extensiontracker.com/extension/hdapplggdhndkblofffknpmnnnnbncbn},
  urldate = {2026-11-13}
}

The data is free to reuse under CC BY 4.0.

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