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Your visual work brain

Everything you know about your work — finally in one place.

Projects, notes, voice thoughts, tasks, decisions and files, all connected on an infinite canvas. Six months from now, Cortex still remembers why you made that call — and so do you.

Start building your brain See how it works
Private by default Works offline Connects to ChatGPT & Claude
Related to 3 past projects
Thought captured

The point of all this

Questions your tools can't answer today

Notes apps store text. Task apps store to-dos. Neither remembers how any of it fits together — so the moment you need the story behind a decision, you're scrolling chat history.

  • Where did this project stop, and why?
  • What am I waiting for, and from whom?
  • What did I decide six months ago — and what was the reasoning?
  • Which past project already solved this problem?
  • What did I actually do this week?
  • What came out of Tuesday's meeting?

What's inside

One system, not eleven tabs

Each piece is useful on its own. Together they become something no single tool gives you: context that survives.

Infinite canvas

See your work spatially. Drag projects, notes and tasks onto a boundless board and draw the connections between them — links that are real data, not decoration.

Connected notes

A proper writing surface with backlinks. Mention a project and it links itself, so every note knows what it belongs to.

Voice thoughts

Speak for three minutes on the way home. Cortex transcribes it, drafts a summary and suggests the tasks inside — and never overwrites your original words.

Decisions that survive

Record what you chose and why, as its own object. No more archaeology through month-old notes.

Timeline

Not a calendar — the story of how the work actually unfolded, and what is coming next.

Knowledge graph

Every link you make builds a map of your work, which is what lets Cortex spot that this new problem looks a lot like an old one.

How it works

Capture now, organise never

The reason knowledge tools fail is that they ask you to file things while you're still thinking. Cortex doesn't.

Throw it in

Hit ⌘K anywhere, or the record button on your phone. Text, voice, a file, a half-formed idea — it all lands in your Inbox with no questions asked.

Let it suggest

Cortex reads what you captured and proposes: this looks like it belongs to Access Platform, there are two tasks in here, this sounds like a decision. You tap accept or ignore — nothing files itself behind your back.

See the shape of it

Open the canvas and your work is laid out in front of you: what's moving, what's stuck, and what each thing came from.

AI & MCP

Talk to your work brain from ChatGPT or Claude

Cortex runs a secure MCP server, so the assistant you already use can search your notes, read one, and save new ones — without you opening the site.

Connect once

Add Cortex as a connector in ChatGPT or Claude. You approve exactly which permissions it gets, and you can revoke it in one click.

“Search my brain for what I said about activity tracking” search
“Save this idea into Cortex” create

Two separate switches

Who can see it and what AI can read are different questions, so Cortex keeps them as different settings. Your manager and your assistant do not share a permission.

Private brainstorm Nobody Your AI ✓
Team retrospective Workspace No AI
Salary discussion Nobody No AI

Install

Full power on desktop. Capture anywhere on your phone.

Cortex installs like an app on both, and quick capture keeps working with no signal — anything you record syncs when you're back online.

iPhone & iPad

  1. Open Cortex in Safari
  2. Tap the Share button
  3. Choose Add to Home Screen

Android & desktop

  1. Open Cortex in Chrome or Edge
  2. Open the ⋮ menu
  3. Choose Install app

Stop re-explaining your own work.

Start with one project and one thought. The connections build themselves from there.

Create your workspace