Euro-Office Reaches First Stable Release as Web-Based Office Suite

Euro-Office has reached its first stable release as a web-based office suite for documents, spreadsheets, presentations, and PDFs. The project is designed for integration into collaboration platforms rather than as a standalone consumer download, with Nextcloud identifying Hub 26 Spring as one of the first partner environments for the suite.

The release matters because it places another open-source office option inside the wider European digital sovereignty debate. Euro-Office is backed by organisations including IONOS, Nextcloud, EuroStack, XWiki, OpenProject, Soverin, Abilian, BTactic, OpenXchange, and Office.eu, with partner rollouts expected through their own products and services.

According to the Euro-Office GitHub page, the suite supports collaborative editing for documents, spreadsheets, presentations, and PDF files. It lists support for formats including DOCX, PPTX, XLSX, PDF, ODT, ODS, ODP, and TXT. The project also describes mobile and desktop applications as work in progress.

Nextcloud said Euro-Office would be available as an alternative to Collabora under Nextcloud Office, allowing users to select their preferred office integration. IONOS Managed Nextcloud customers are expected to receive access after launch, with a wider Nextcloud Workspace rollout planned later in the summer. XWiki integration is described as planned for the fourth quarter of 2026.

The release also carries licensing context. ONLYOFFICE has alleged that Euro-Office uses technology derived from ONLYOFFICE editors in violation of its licensing terms, including requirements related to branding, logo preservation, and attribution. Nextcloud disputes that position and says Euro-Office removed additional terms it considers incompatible with AGPLv3 freedoms after reviewing the ONLYOFFICE codebase.

The dispute should not be framed as resolved. Public statements from ONLYOFFICE and Nextcloud present opposing interpretations, and no court ruling, settlement, or final legal determination is provided in the available source material.

For organisations watching sovereign collaboration tools, Euro-Office is best understood as an early platform-integrated office option rather than a proven replacement for established office suites. Its practical significance will depend on partner rollouts, production deployments, format compatibility, governance, and how the licensing dispute develops.