Free, open source desktop app for developers. Available for macOS, Windows, and Linux.
| Price | Free. No account or signup required. |
|---|---|
| Source | Open source — github.com/jcz530/barnacles |
| macOS | macOS 11 or later, Apple Silicon (.dmg) |
| Windows | Windows 10 or later (.exe installer) |
| Linux | Modern distributions (.AppImage or .deb) |
| Detected languages | JavaScript, TypeScript, Python, PHP, Rust, Go, Java, plus any Git repository |
| Data storage | Local SQLite database. Nothing is uploaded. |
| Network | Works fully offline. No internet connection required. |
| Interfaces | Desktop app, command-line interface (CLI), and a built-in MCP server for coding agents |