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Dev tools · December 9, 2025

Kortex

Organize, import + export NotebookLM sources with a click

Kortex launched on December 9, 2025 with 190 votes, #139 of 11,628 launches that month and more than 95% of that year's launches.

Visit yaksh1.github.io ↗Kortex alternativestop 1% of December 2025

What it does

Most extensions are basic web clippers. Kortex acts as an integration layer, bridging active AI chats with NotebookLM storage. Its standout features include Native LLM Archiving, which adds a one-click import button directly inside ChatGPT, Claude, and Gemini. Unlike others, we focus on data freedom with bulk exports to Markdown, and precision sniping to save specific text blocks rather than whole messy webpages.

Stop losing ideas. Kortex transforms Google NotebookLM into a dynamic, interconnected knowledge base. Capture everything, find anything, and never lose an insight again. Valuable insights from LLM chats and web research get lost in endless scroll-back history and forgotten tabs. Kortex breaks them free. Save full conversations from ChatGPT, Gemini, Claude, and Perplexity directly to NotebookLM. Turn any text on the web into a perfectly-cited source with a simple right-click. Export sources, chats, or curated notes as Markdown, JSON, or a single .zip file. Send Google Docs to NotebookLM with a single click from the Docs website itself. Select multiple notebooks on the homepage and delete…from yaksh1.github.io

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