NotebookLM icon
NotebookLM Chrome Extension

Save anything to NotebookLM — from any tab.

Clip pages, YouTube videos, files and Reddit threads into your notebooks without switching tabs.

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Loved by 500+ researchers & learners
Kaptex button injected on a website
Kaptex side panel showing NotebookLM sources
500+active users
50K+sources saved
10+supported sites

I used to copy-paste URLs into NotebookLM one by one. With Kaptex I clip an entire Reddit thread or YouTube video in one click. My research workflow completely changed.

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Maria G.@mariag_research· PhD Candidate

I run market research sessions in NotebookLM weekly. Kaptex lets me sweep all my open tabs directly into a notebook. Saves me 30 minutes every session.

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Carlos R.@carlosrd_founder· Founder
See Kaptex in action

Your Capture Layer for NotebookLM

Take Kaptex wherever you browse. Save notes, articles and videos to your NotebookLM notebooks instantly. No breaking your research flow or switching tabs.

Kaptex NotebookLM Chrome extension interface
Featured on Chrome Web Store
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Diagram showing Kaptex capturing content into NotebookLM from integrations such as Claude, ChatGPT, Perplexity, YouTube, and Reddit.
Features

10x Your NotebookLM Experience

Kaptex clips any content into NotebookLM in one click, then helps you organize sources at scale.

One-Click Capture

Capture from Claude, ChatGPT, Perplexity, YouTube, and Reddit in one click.

Kaptex injects an Add to notebook action on supported sites, so you can save content without breaking your browsing flow.

Supported Sites

Works on Claude, ChatGPT, Perplexity, YouTube, and Reddit.

Context-Aware Sending

Detects page context and chooses the right source type.

No Tab Switching

Save directly from the current page with less friction.

One-click capture on supported sites
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Source Capture

Capture every source type your workflow needs.

Add URLs, YouTube links, custom text, files, and Reddit content with dedicated flows built for NotebookLM ingestion.

URL, YouTube, and Text

Save links, videos, and custom notes as NotebookLM sources.

File Uploads

Upload .txt, .md, .csv, .html, .htm, and .json sources.

Reddit-to-NotebookLM

Preview structured post plus top comments before sending.

Multiple source capture methods
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Scale and Organize

Bulk import and keep notebooks clean as you scale.

Import many sources in one go, manage notebook content centrally, and keep source state synced to your account.

Bulk Add Sources

Paste multiple URLs or import all current browser tabs.

Notebook and Source Management

List notebooks, view sources, delete, and refresh quickly.

Synced Workspace

Notebook and source metadata can be mirrored after updates.

Bulk add and notebook management

I save inspiration from everywhere — Twitter threads, YouTube videos, articles. Kaptex funnels everything into NotebookLM so I can query it all at once.

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Ana M.@anamtz_writer· Content Creator

The bulk URL import is a game changer. I paste 20 links and Kaptex adds them all to my research notebook. Crazy how much time this saves.

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Diego V.@diegovargas_io· Indie Hacker
Pricing

Start free. Upgrade when ready.

Free

$0USD

Try Kaptex risk-free. No credit card needed.

  • Save up to 10 sources per day
  • Works on YouTube, Reddit & news sites
  • 1 active notebook at a time
  • Manual save from toolbar
  • Basic source types (URL & text)
  • One-click capture on AI sites
  • Bulk import & file uploads
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Get started free →

No credit card required.

Pro

POPULAR
$3/month

Billed annually ($36/year)

Full access to every Kaptex feature.

  • Unlimited source saves
  • One-click capture on Claude, ChatGPT & Perplexity
  • All supported sites (YouTube, Reddit & more)
  • Bulk URL import & tab sweep
  • File uploads (.txt, .md, .csv, .html, .json)
  • Reddit preview before sending
  • All notebooks, no limits
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Cancel anytime.

BEST VALUE

Lifetime

$49one-time

Pay once. Everything included, forever.

  • Everything in Pro
  • Lifetime access — no recurring payments
  • All future features included
  • Early access to new site integrations
  • Priority support
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Pay once, use forever.

FAQ

Frequently Asked Questions

Kaptex is a Chrome extension that lets you save content to NotebookLM from any tab — without switching windows. Clip web pages, YouTube videos, Reddit threads, and files directly into your notebooks in one click.

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Kaptex supports one-click capture on Claude, ChatGPT, Perplexity, YouTube, and Reddit. You can also save any URL, custom text, or upload files (.txt, .md, .csv, .html, .json) from any page using the extension panel.

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Yes. The free plan lets you save up to 10 sources per day with basic source types. Pro ($3/month, billed annually) unlocks unlimited saves, one-click capture on AI sites, bulk import, and file uploads. The Lifetime deal gives you everything in Pro forever.

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Kaptex eliminates tab switching and manual copy-paste. You save content directly from your current tab in one click, choose the notebook, and Kaptex handles source type detection automatically. It also lets you bulk-import multiple URLs, sweep your open tabs, and upload files — all without opening NotebookLM.

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Yes. Kaptex connects to your Google account and shows all your NotebookLM notebooks. You pick which notebook to send each source to, and can manage sources across all notebooks from the extension panel.

NotebookLM icon

Save anything to NotebookLM

Clip pages, YouTube videos, files and Reddit threads into your notebooks without switching tabs.