SigmaNote - your second brain

What it does

Super‑charged by AI, SigmaNote turns any file or link into editable notes you can search and chat with—capture, convert, remember.

SigmaNote is your AI-powered second brain. One hub for all knowledge formats — PDFs, voice notes, web pages, videos. AI agents grounded in your data help you learn by conversation and turn knowledge into output. For students, researchers, founders, consultants, lawyers, clinicians, and creators.

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