Nobie - Local-only Excel-compatible runtime for agents and humans

Show HN: Nobie – an Excel-compatible runtime for agents and humans

Nobie is a free, local-only spreadsheet application designed for Mac that offers full compatibility with Excel and Google Sheets without requiring an account. It ensures your data never leaves your device, providing unmatched performance for formulas, styling, tables, and charts. Uniquely, Nobie is AI-first, allowing you to connect powerful models like Claude, Codex, or Gemini directly to your spreadsheets for seamless automation. With no vendor lock-in and standard .xlsx file support, it empowers users and computer-use agents to work efficiently while maintaining complete data privacy.

"Nobie is local-only. We don't collect, process, or transmit your data. Everything stays on your machine."