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Best European alternatives to Microsoft 365 Copilot in 2026

We found 1 EU-built alternative to Microsoft 365 Copilot — GDPR-native, with verified data sovereignty and transparent rankings. No pay-to-win.

1 EU-built alternative to Microsoft 365 Copilot

Zetaoffice

Project Management

EU Based

ZetaOffice brings LibreOffice to the browser, offering Writer, Calc, and Impress for document editing, spreadsheets, and presentations. It supports self-hosting or CDN deployment with full data control and API integration.

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