Euro-Office, Europe's open-source office suite, launches June 9 with Microsoft-compatible editors

Euro-Office 1.0, a Europe-based open-source alternative to Microsoft Office and Google Docs, will be released on June 9, 2026, as a free download from GitHub. Developed by a consortium of leading European cloud and collaboration vendors—including Ionos, Nextcloud, EuroStack, XWiki, OpenProject, Soverin, Abilian, BTactic, Open-Xchange, and Office.eu—the suite provides web editors for documents, spreadsheets, and presentations with full real-time collaboration. The interface and document formats are designed to be familiar to Microsoft 365 users, easing migration. Crucially, Euro-Office is built on open-source code, offering transparency and the ability to self-host or deploy in European-controlled data centers, addressing growing concerns about digital sovereignty and reliance on US-based SaaS providers.

Euro-Office ships as an integrated component inside existing European collaboration ecosystems rather than as a standalone download. At launch, it will be available as the in-browser editor within Nextcloud Hub 26, and Ionos managed Nextcloud customers can install it shortly after June 9. Ionos plans to roll it into its broader Nextcloud Workspace later this summer, while XWiki expects to integrate Euro-Office in Q4 2026. Office.eu will also adopt it. This layered deployment model allows public authorities, education systems, and regulated industries to quickly adopt a sovereign office stack without complex integrations. As Nextcloud CEO Frank Karlitschek noted, 'Europe has had the technical building blocks for years. What was missing until now was an initiative to bring them together into a meaningful, comprehensive solution.' The initiative positions Euro-Office as a practical, trustworthy alternative that combines European corporate governance with open licensing.