Desktop app

Download Second Brain Studio

The full Studio as a native desktop app — your vault and data stay on your machine, and it drives Claude Code or Codex locally to build and query your second brain. Same engine as the browser Studio, with real local file access.

All downloads & release notes → · also as .deb for Debian/Ubuntu on the releases page.

Before you start

Second Brain Studio uses a local agent to build your vault from your data exports. Install the second-brain-link skill and have Claude Code or Codex available on your machine. Then download your data exports — any of the 24 supported sources (LinkedIn, Google, Instagram, X, GitHub, Spotify… or company-side Slack, Notion, Salesforce…) — drop them into the Studio's Sources panel, and Reseed to build your brain. (A paid cloud option is coming soon.)

First launch (unsigned build)

The current builds aren't code-signed yet, so your OS will warn on first open:

• macOS: right-click the app ▸ Open (just once), or run xattr -dr com.apple.quarantine "/Applications/Second Brain Studio.app".
• Windows: on the SmartScreen prompt, click More info ▸ Run anyway.

Second Brain Mobile — iOS & Android

The native mobile app builds your twin entirely on-device — import your exports on the phone, explore the graph, talk to your brain. No account, no cloud. Download on the App Store (iPhone) · Get it on Google Play (Android) — coming soon to both stores. More in the mobile app docs.

Prefer the browser? Open Second Brain Studio in your browser →