Your Mac,
with a memory.

Yes, and only in this browser. It notes which parts you read, what you clicked and what you asked, the way Cortex notes your day. A short summary is kept in your browser's local storage so it can welcome you back. It never stores what you type or your email. Nothing it notes is sent anywhere: no analytics, no cookies, no third-party requests. The only thing this page ever sends is your email, and only if you join the waitlist.

Forget my visit

Clicks, typing and scrolling. The app and window in focus. On-screen text it can read through Accessibility. Clipboard copies, downloads, and meeting audio while you're on a call. Everything passes through the privacy filter before it's written.

Typing is grouped into phrases once you pause for about a second, and scrolling is grouped into half-second windows, so your memory reads like a log of what you did, not a keystroke dump.

Capture, filtering, transcription, indexing and search all run on your Mac. The only thing that syncs is your cleaned memory, written as Markdown, to a private GitHub repository that you own and control. If you're offline, changes wait locally and push together when you reconnect.

Three checks run in order, before anything touches disk:

• Secure fields. When you're typing into a password or secure field, keys are dropped and the moment is logged as [Secure Input Focused].
• Blocked apps and sites. 1Password, Bitwarden, KeePassXC, Keychain Access, Dashlane and NordPass pause the observer, along with any apps or sites you add.
• PII scrubber. Card numbers, SSNs, OpenAI, GitHub, AWS and Slack keys, and bearer tokens are replaced with tags like [REDACTED_API_KEY].

Each one has a single job. Accessibility reads button labels and on-screen text, so each memory knows what you actually did. Input Monitoring notices clicks, typing rhythm and scrolling, never what you type into password or secure fields. Screen Recording captures small crops only when an app can't be read any other way. Microphone is used for meeting transcription.

In plain Markdown files you can open in any editor, with Obsidian-style links between them. Your vault has four folders: episodes/ for what happened, playbooks/ for workflows Cortex extracted, daily_digests/ for readable day summaries and analytics/ for metrics. Files are append-only and named by device and time, so several Macs can share one vault without merge conflicts.

It's built to stay out of the way. Cortex reads the accessibility tree first, which takes under 0.2 ms per element. It only captures a screen crop when an app can't be read that way, and it writes events in batches every 250 ms. Recent moments are searched from memory and older ones from a local SQLite full-text index.

The observer keeps running quietly in the menu bar, so your memory doesn't have gaps. You can pause it from the menu bar for an hour or for as long as you like, and blocked apps are never recorded at all.

When you repeat a workflow, Cortex can turn it into an agent, but it has to earn that. A new agent starts in shadow mode, predicting each step without acting. Once it matches you on 98% of 50 real runs, it moves to supervised, where it drafts and you approve with one click. Only then can you make it autonomous, and it still alerts you on exceptions.

Meetings are transcribed on your Mac with WhisperKit, which supports more than 99 languages and detects the language automatically.

A Mac running macOS 14 Sonoma or later, plus a GitHub account if you want your vault synced. Without one, your memory stays in a local folder.

The Mac build isn't public yet. Join the waitlist and we'll email you the .dmg as soon as it's ready.