A group of European tech firms unveils Euro-Office, an open-source Microsoft Office alternative built for digital sovereignty, with a summer release planned.
A coalition of more than a dozen European enterprises and community organizations launched Euro-Office on Wednesday — an open-source office suite for editing documents, spreadsheets, and presentations, developed explicitly as an alternative to productivity platforms that European institutions no longer feel comfortable depending on.
A public technology preview is available immediately on GitHub. A first stable release is planned for the summer.
The effort is backed by some of Europe’s most prominent technology firms, including IONOS, Nextcloud, Eurostack, XWiki, OpenProject, Soverin, Abilian, and BTactic. Its stated ambition is to deliver something that existing European alternatives have failed to combine: full Microsoft format compatibility, a familiar user experience, and genuine digital sovereignty under European stewardship.
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The Moment Behind the Launch
The announcement arrives at an inflection point in European technology policy. Public administrations, enterprises, and educational institutions across the continent are reassessing their dependence on non-European productivity platforms — driven not only by cost and functionality concerns, but also by a sharpening awareness of the control and long-term strategic risks that come with relying on infrastructure governed elsewhere.
That reassessment has been accelerating. This week, ONLYOFFICE shut down its cloud offering, forcing organizations that had adopted it as a sovereign alternative to reconsider their options once again. The timing of Euro-Office’s launch is not coincidental.
“With the geopolitical developments we have seen in the last year, there is a clear need for a reliable, fully Microsoft-compatible and easy-to-use sovereign office solution in Europe,” said Achim Weiss, Chief Executive of IONOS.
What Existing Alternatives Get Wrong
The problem Euro-Office is designed to solve is not simply the absence of European office software — it is the structural compromises that have made existing alternatives difficult to adopt at scale.
Current options typically require organizations to choose between format compatibility and usability, carry legal risks around licensing and trademarks, or are developed without transparent governance and an independent contributor community. For institutions handling sensitive public data or operating under strict regulatory requirements, those trade-offs create risk that cannot be managed away through contractual arrangements with vendors.
Euro-Office addresses each of these constraints directly. The entire codebase is released under fully open-source licensing, free from trademark constraints, and developed through a transparent process open to public scrutiny and contribution. Its interface is designed to minimize retraining and migration friction—a practical acknowledgment that the single largest obstacle to enterprise migration is rarely cost or functionality, but the disruption of changing the tools employees use every day.
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Not Starting From Scratch
The coalition is careful to frame Euro-Office not as a ground-up engineering effort, but as an act of stewardship over technical infrastructure that Europe has long possessed in fragmented form.
“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,” said Frank Karlitschek, Chief Executive of Nextcloud. “With Euro-Office, we’re not starting from scratch — we’re taking responsibility for a vital piece of digital infrastructure. This finally gives organizations tools they can trust: transparent, durable, and managed in Europe.”
The technology preview available on GitHub enables organizations and individuals to evaluate core functionality, test format compatibility, and submit feedback ahead of the stable release. The coalition is actively inviting contributions from developers, institutions, and public sector organizations across the continent.
The launch is an early move in a field that is likely to become more crowded. As European digital sovereignty shifts from policy aspiration to procurement requirement, the market for trusted, locally governed productivity infrastructure will only grow. Euro-Office is making the case that a coalition of European firms can, together, build something the continent has so far failed to produce on its own.
