# Birdbrain

> A local-first, open-source desktop app and Chromium extension for capturing, organizing, and verifying web evidence.

- [Overview](https://docs.birdbrain.cc/docs/index.md): Birdbrain is a local-first desktop app for capturing, organizing, and verifying web evidence. Start here.
- [Download Birdbrain](https://docs.birdbrain.cc/docs/download.md): Get the public beta build for Windows or Ubuntu, load the Chrome extension, and see what the project wants reported.
- [Install and first capture](https://docs.birdbrain.cc/docs/tester-guide.md): Install Birdbrain and the companion Chrome extension, take your first capture, and keep the app updated.
- [Features](https://docs.birdbrain.cc/docs/features.md): What Birdbrain does: capture, cases, analysis, integrity, export, and the app itself.
- [Screenshot tour](https://docs.birdbrain.cc/docs/screenshots.md): A screen-by-screen tour of Birdbrain, from onboarding through capture, annotation, analysis, and export.
- [Read a Case from an AI agent](https://docs.birdbrain.cc/docs/mcp.md): Connect an MCP client such as Claude Code to Birdbrain, so an agent can read a Case and check claims against its Captures without changing it.
- [Threat model](https://docs.birdbrain.cc/docs/threat-model.md): What Birdbrain's chain-of-custody controls defend against, what they deliberately do not, and why the default timestamp authority is DigiCert.
- [Privacy-focused adoption guide](https://docs.birdbrain.cc/docs/adoption-guide.md): For activists, independent researchers, and small privacy-focused groups deciding whether to adopt Birdbrain.
- [Architecture](https://docs.birdbrain.cc/docs/architecture.md): Formal architecture and assurance analysis: trust boundaries, evidence claims and their limits, and deployment posture. Start here for security review.


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