Introducing Calabrass: The Local-First, Open-Source Personal AI Agent for Windows

As AI models become more integrated into our daily workflows, privacy and local control are rapidly becoming top priorities for developers. Many of us want the power of autonomous AI agents without sending private files, codebases, or API interactions to third-party cloud platforms.

That is why I built Calabrass —a native, local-first personal AI assistant and agent workspace built specifically for Windows.

Calabrass is a single-user, open-source AI desktop application that runs entirely on your machine. It combines a streaming chat interface, an autonomous tool-using agent, workspace file awareness, and a Model Context Protocol (MCP) host—all packaged into a lightweight Windows app.

No cloud accounts are required, and no data ever leaves your computer.

Calabrass was designed to be fast, minimal, and fully native:

You can try Calabrass today by downloading the installer or building it from source:

If you prefer to run or contribute to the project locally:

# Clone the repository git clone https://github.com/CodewithMubasher/Calabrass.git cd Calabrass # Install frontend dependencies cd Frontend pnpm install # Run backend and frontend together. \dev.ps1 Enter fullscreen mode Exit fullscreen mode 🤝 Community & Contributions Calabrass is licensed under the MIT License. I would love to hear feedback, feature requests, or contributions from the developer community!

If you find the project interesting, feel free to give it a ⭐️ on GitHub or drop a comment below with your thoughts or questions.

Expand Mubasher Chaudhary Mubasher Chaudhary Mubasher Chaudhary Follow Student & Developer based in Islamabad, Pakistan. Building open-source projects, repositories, and learning software development. Joined Oct 19, 2026 • Oct 19 Dropdown menu Copy link Hide If you find the project interesting, feel free to give it a ⭐️ on GitHub