Brainstorm

Brainstorm is a local-first, AI-native operating system for knowledge management. Your apps, your data, and your AI all run on your machine, with optional end-to-end encrypted sync — and every app and every agent only touches what you allow.

We'd like to count visits and see which pages get read. That means keeping one random id on your device, so reading a second page isn't counted as a second person, and sending page names to Amplitude on servers in the EU. Nothing is kept until you choose, and you can change your mind whenever you like. What we store

Brainstorm runs your apps, your data, and your AI on your own machine. Install what you need, keep every file on your disk, and let AI help — only with the parts you hand it.

The screen is a real desktop — a wallpaper, app icons, windows. Each icon is its own app, sandboxed, all working from one set of data that lives with you: knowledge management without someone else's cloud in the middle.

The shell only hosts apps. Notes, Database, Files, Graph, a calendar, a code editor — add the ones you want, drop the rest, and update each on its own.

Every document is a plain file in a folder you own. Sync is optional and end-to-end encrypted — the relay only ever sees scrambled bytes. There's no account to sign up for.

The shell sits between your apps and any AI. Use your own API key or a model that runs locally, and decide exactly what each app and agent is allowed to touch.

Each app reads and writes the same vault, so a note y