Extension Tracker

Kortex Notebook: Best Gemini NotebookLM Toolkit

100,000 users Rated 4.71 from 371 ratings Last updated 14 Aug 2026

By yakshgandhi1 Live in the Chrome Web Store hdapplggdhndkblofffknpmnnnnbncbn Last checked 27 Sep 2026, 02:14 UTC

The listing

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

Transform NotebookLM into your ultimate knowledge hub. Save prompts, export chats, and organize all your interactions seamlessly.Summary from the listing
Developer
yakshgandhi1
Trader status
Not declared a trader under EU law
Category
Productivity › Tools
First published
16 Aug 2025
Last updated
14 Aug 2026
Version
2.3.3
Size
5.26 MiB
Minimum Chrome
88
Languages
8 languages

Deutsch, English, Türkçe, español, français, italiano, 中文（中国）, 日本語

Website
kortex-notebooklm.com
Open in the Chrome Web Store ↗ Download the CRX from Google ↗
Users over time As shown on the Chrome Web Store

Tracking began on 27 Sep 2026. The chart appears after the second check.

Show the numbers
CheckedUsersRatingRatings
2026-09-27100,0004.71371
Users, 7 days
–
needs a week of history
Users, 30 days
–
needs a month of history
Rank
#1,082
by users, of 264,254 extensions
In its category
#206
of 103,321 in Tools

What changed

Every change found on a check, newest first

No changes found since tracking began on 27 Sep 2026.

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
  • scriptingRun scripts on sites it can reach
  • 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
Lexi11 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 27 Sep 2026, 02:14 UTC; next check around 3 Oct 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “Kortex Notebook: Best Gemini NotebookLM Toolkit” (hdapplggdhndkblofffknpmnnnnbncbn). Chrome Web Store data, last checked 2026-09-27. https://extensiontracker.com/extension/hdapplggdhndkblofffknpmnnnnbncbn. Accessed 2026-09-28.
BibTeX
@misc{extensiontracker_hdapplggdhndkblofffknpmnnnnbncbn,
  title   = {Kortex Notebook: Best Gemini NotebookLM Toolkit (hdapplggdhndkblofffknpmnnnnbncbn)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-27},
  url     = {https://extensiontracker.com/extension/hdapplggdhndkblofffknpmnnnnbncbn},
  urldate = {2026-09-28}
}

The data is free to reuse under CC BY 4.0.

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