Kortex is a free Chrome extension designed to enhance Gemini Notebook (formerly NotebookLM) by enabling one-click import from various sources, organizing notebooks with collections and tags, automating repetitive tasks, and exporting notebooks in multiple formats. It integrates with AI chats, social media, Google Docs, and web pages to streamline research management and knowledge base creation.
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Alternatives to nlmtools
Start with the same category and recorded primary feature, then narrow by the features you need. These are discovery candidates, not a claim that every product replaces every feature.
Consider switching if these limitations affect you: NotebookLM does not have a single 'Save as PDF' button; exporting depends on the content type and may require the extension or browser print functions. Audio and video overviews cannot be exported as PDFs; they are downloadable only as MP3 or MP4 files.
Verified alternatives
Each one checked against nlmtools: it does the same main job for a similar customer, so a buyer could choose it instead.