Euro-Office: The New European Microsoft 365 Alternative
Euro-Office is a free, open-source, cloud-based office suite developed by a coalition of European technology companies, launched on June 9, 2026. It is a fully sovereign alternative to Microsoft 365 and Google Workspace, built and operated entirely within Europe, with all data stored and processed under European legal jurisdiction.
It supports real-time collaborative editing of documents, spreadsheets, and presentations in Microsoft-compatible formats such as DOCX, XLSX, PPTX, PDF, and TXT, and is integrated into platforms offered by its founding partners, including IONOS and Nextcloud.
Key Takeaways:
Euro-Office Launch on June 9, 2026
Euro-Office 1.0 reached general availability on June 9, 2026, published on GitHub under an AGPLv3 license and integrated simultaneously into Nextcloud Hub 26 Spring.
Euro-Office provides an open, transparent, and sovereign solution for collaborative document editing. Euro-Office is developed to be a web based and can be integrated into another product that handles documents, for example a file sharing solution, an online wiki, a project management tool, and so on.
Who Built Euro-Office
Euro-Office is open source and developed in public by a community of individuals and organizations. It is an initiative of European companies who want a real open, sovereign online office suite that works with the proprietary file formats of Microsoft. Current contributors and supporters include:
- Abilian
- BTactic
- EuroStack
- IONOS
- Nextcloud
- Office.EU
- Open-Xchange
- OpenProject
- Proton
- Soverin
- Tuta
- XWiki
What Euro-Office Does
With Euro-Office, a user can view, edit, and work with others on spreadsheets, documents, presentations, and even PDF files in real time. It has a web interface where you can work with DOCX, PPTX, XLSX, PDF, ODT, ODS, ODP, TXT and many other file formats. You can save the document back to the application you used to open it or download in various file formats.
Euro-Office vs. Office.eu
Office.eu is a subscription-based cloud workspace. It was launched on March 4, 2026, from The Hague designed for organizations and individuals across Europe who refuse to trade convenience for privacy. Euro-Office is the document editor component that platforms embed into their own infrastructure. Office.eu uses Euro-Office as its editing layer; they are not the same product.
Why Clean Your Microsoft 365 Data Before Migrating to Euro-Office?
If your organization is planning to migrate from Microsoft 365 to Euro-Office, one of the best practices is to clean the data living in Microsoft 365 prior to starting the migration.
Using Microsoft 365 for many years means that there are high possibilities to have duplicate and outdated content, permission and sharing sprawl, risky external sharing, and more. Migrating them without a proper cleanup adds up your migration costs and carries the unclean data to your new Euro-Office environment.
CloudFuze Manage provides you complete visibility into what’s available in your Microsoft 365 environment before any migration. You can audit SaaS sprawl, identify orphaned accounts and stale permissions, flag Shadow AI usage, and enforce governance policies. This way, you can clean up and migrate clean data to your new cloud destination.
Prepare Your Microsoft 365 Data Before Moving to Euro-Office
Euro-Office marks a notable step towards an open, sovereign, and privacy-focused productivity for European organizations. However, a successful move from Microsoft 365 depends not only on choosing the right destination but also on preparing the source environment.
By cleaning up outdated files, redundant accounts, risky permissions, and unmanaged app usage before migration, businesses can reduce complexity and start fresh in Euro-Office with cleaner, more secure, and better-governed data.
With CloudFuze Manage, organizations can gain the visibility and control needed to plan this transition confidently and make their Euro-Office migration more efficient.
Reach out to our team at CloudFuze for your Microsoft 365 audit!
Frequently Asked Questions
1. What is Euro-Office?
Euro-Office is a free, open-source European document editor launched on June 9, 2026. It supports real-time collaborative editing of Microsoft-compatible files and is embedded into platforms rather than distributed as a standalone application.
2. Is Euro-Office the same as Office.eu?
No. Office.eu is a subscription cloud workspace launched March 4, 2026, from the Netherlands. Euro-Office is a document editor component that Office.eu and other partners integrate into their platforms.
3. Can Euro-Office open Microsoft Office files?
Yes. Euro-Office supports DOCX, PPTX, XLSX, PDF, ODT, ODS, ODP, TXT, and many other file formats.
4. Is Euro-Office free?
The software is released under AGPLv3 and is free to use, modify, and distribute. Costs depend on the partner platform or cloud service used to host or access it.
5. What should be done before migrating from Microsoft 365?
Ensure to audit SaaS sprawl, identify orphaned accounts and stale permissions, flag Shadow AI usage, and enforce governance policies before migrating from Microsoft 365.
