Cortex
Try it free →🧠 200k+ second brains and counting
Note-taking that actually sticks.
Cortex catches every idea, connects the dots, and hands them back right when you need them. It’s the second brain that’s genuinely fun to use.
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Capture at the speed of thought
One shortcut, anywhere on your device. The thought’s saved before you finish thinking it.
⌘K→ new note in 0.2s
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Self-linking notes
Type [[ and watch your ideas wire themselves together.
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Ask anything
AI recall across all your notes.
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Synced
Every device, instantly.
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Your knowledge, visualized
A graph of everything you know.
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Daily notes, on autopilot
A fresh page every morning, threaded into everything else.