据 AlphaMoat 统计,截至 2026-09,Chrome 插件 NotebookLM ULTRA 用户数为 398,环比 +17.4%,评分 4(2 人评价),在全部 9,324 款 AI 浏览器插件中排名第 2,469 位,在「办公协作」分类(1,839 款)中排名第 546 位。
Bulk add YouTube, PubMed, Reddit to NotebookLM. AI summary, transcripts, auto-sync, folders, Anki & export. NotebookLM ULTRA — the missing power tools for Google NotebookLM.
Bulk add YouTube videos, PubMed papers, web pages, and RSS feeds. Get AI summaries, transcripts, translations, and auto-sync. Organize notebooks with folders. Export to PDF, Anki, Notion, Obsidian, and 12 more formats.
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⚡ BULK IMPORT — ADD SOURCES TO NOTEBOOKLM AT SCALE
Stop adding sources one by one. Aggregate from 25+ sites in a single workflow:
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🎬 YOUTUBE TRANSCRIPTS FOR NOTEBOOKLM
Turn any YouTube video into a structured NotebookLM source. Timestamps preserved.
Floating transcript panel on every YouTube video:
Useful for:
Works with auto-generated and manual captions in 100+ languages.
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🔗 MERGE SOURCES — Pack 100 videos into 1 source slot
Merge dozens of YouTube videos, web articles, or research papers into one structured text document. Every merged document keeps:
NotebookLM's AI still cites each original source correctly.
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📁 FOLDERS
Organize the NotebookLM dashboard with folders — the missing feature for heavy users.
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🔄 AUTO-SYNC YOUTUBE CHANNELS, PLAYLISTS, AND RSS FEEDS
Monitor YouTube channels, playlists, and RSS feeds. New videos and articles are added to your notebooks automatically on a schedule — hourly, daily, or weekly.
Useful for tracking competitor channels, monitoring industry news, following research feeds, and building topic-based knowledge bases that update themselves.
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🤖 AI SMART SORT
AI analyzes selected sources and automatically routes them to matching notebooks based on topic and context. Works on bulk imports and full open-tab scans with channel grouping.
Saves hours of manual sorting when you manage many notebooks across clients, projects, or research areas.
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🧠 AI SUMMARY AND TRANSLATION BEFORE ADDING
Preview a structured AI summary of any YouTube video or web page before saving it to NotebookLM. Decide if the source is worth a slot — without watching the full video or reading the full page.
Translate source content into any language during import. Useful for multilingual research, international content, language learning, and cross-market analysis.
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🔍 ADVANCED FILTERS AND SEARCH
Find better sources faster.
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📤 EXPORT IN 14 FORMATS
Export NotebookLM notebooks, artifacts, and merged sources in different formats (csv, pdf, docx, json etc).
Use export to:
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🔁 SEND CONTENT TO NOTION, OBSIDIAN, AND GOOGLE DRIVE
Use NotebookLM as your AI research front-end while keeping permanent notes in your existing stack:
One-click export. Keep your knowledge layer wherever it already lives.
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✨ MORE NOTEBOOKLM WORKFLOW TOOLS
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🎯 WHO USES NOTEBOOKLM ULTRA?
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❓ FREQUENTLY ASKED QUESTIONS
How do I add YouTube videos to NotebookLM? Click "Add to NotebookLM" on any YouTube page, or batch-add from your subscriptions, search results, channels, or playlists. Videos are converted to transcripts with timestamps automatically.
Can I add multiple sources at once? Yes. NotebookLM ULTRA supports bulk add from open tabs, YouTube channels, Google Search results, and any supported site — up to 100 sources per batch.
Does it bypass the NotebookLM source limit? Google's server-side limit cannot be removed. The Merge Sources feature packs many videos and pages into one source slot — effectively letting you fit 100+ items into a single slot without losing content or citations.
Does auto-sync really work in the background? Yes. Scheduled sync of YouTube channels, playlists, and RSS feeds runs in the cloud. New content is added to the right notebook via AI Smart Routing without any manual action.
Does it work with academic papers? Yes. PubMed, arXiv, Google Scholar, and ResearchGate are supported. Bulk-add search results with one click.
Can I export NotebookLM content? Yes — in 14 formats including. Export notebooks, AI artifacts, or merged sources.
Is my data safe? Yes. NotebookLM ULTRA is a bridge between your browser and Google NotebookLM. Source content is processed locally in your browser. AI features route through our secure API only when you trigger them.
Is NotebookLM ULTRA free? Core features are free: bulk add, merge, transcripts, folders, and basic export. Pro and ULTRA tiers unlock daily AI quotas, auto-sync, Smart Digest, and advanced AI features.
Is this an official Google extension? No. NotebookLM ULTRA is an independent third-party extension. It is not affiliated with, endorsed by, sponsored by, or officially connected to Google, YouTube, or NotebookLM.
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📋 HOW TO GET STARTED
1. Click "Add to Chrome" 2. Pin the extension to your toolbar 3. Open notebooklm.google.com 4. Use the new ULTRA dashboard, right-click any link, or use the buttons on YouTube to start building your knowledge base faster
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Disclaimer: NotebookLM ULTRA is an independent browser extension. It is not affiliated with, endorsed by, or sponsored by Google or Google NotebookLM. Google, NotebookLM, and YouTube are trademarks of Google LLC.
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