We keep privacy simple.

This policy explains how SecondBrain handles information when you use our website and Chrome extension. Last updated: April 2026.

Information you provide

When you optimize a prompt, the prompt text is sent to SecondBrain so we can return an improved version. Do not paste secrets, passwords, API keys, private client data, or sensitive personal information.

Saved prompts

Saved prompts are stored locally in your browser unless a future sync feature clearly says otherwise.

Website data

We may use basic technical data such as browser type, device information, and page activity to keep the site reliable and improve the product.

Sharing

We do not sell your personal information. We may use trusted service providers to operate the site, extension, and optimization service.

Contact

For privacy questions, email hello@secondbrain.is.