The much-anticipated Euro Office release has finally arrived, bringing a browser-based office suite that aims to challenge Microsoft 365 and Google Workspace. Built as a fork of OnlyOffice’s open-source core, this European open-source office suite is backed by a coalition of EU-based companies including Nextcloud, Ionos, and other participants in the Euro-Stack initiative. Their goal: position Euro-Office as a cornerstone of European digital sovereignty, giving you a homegrown alternative that keeps your data on European servers.
But the launch hasn’t been smooth. Even as the first stable version goes live, infighting within the open-source community is stealing the spotlight. Criticism has already emerged from The Document Foundation, and licensing disputes are casting a shadow over the project. For anyone looking for a reliable open source office suite alternative, the rough edges are hard to ignore.
What Is Euro-Office and How Does It Differ from Mainstream Office Suites?
Euro-Office is not a standalone application you download and install like LibreOffice or Microsoft Office. Instead, it is an integration component that handles document editing within a larger platform. Think of it as the editing engine, while the host platform provides everything else: storage for your files, navigation to find them, permissions to control who sees what, and sharing logic to collaborate with others. This means Euro-Office relies entirely on that host platform to function as a complete office suite.
The core goal of Euro-Office is to give European organizations a way to host their office tools on EU infrastructure under EU law. This focus on EU data sovereignty sets it apart from mainstream options like Microsoft 365 or Google Workspace, which store data on global servers subject to non-EU regulations. Because Euro-Office is fully open-source and self-hosted, you retain complete control over your data and the software itself. It is a browser-based document editor, meaning you access it through a web browser rather than installing a local application.
However, the software is still rough. The frontend carries OnlyOffice branding in places, and the menus feel dated. For a self-hosted office suite, it offers a clear path to data control, but the user experience is not yet polished. If you are evaluating it as a Euro office release, expect to trade some modern interface polish for the benefit of full data sovereignty.
The Open Source Infighting: TDF Criticism and Licensing Disputes
That promise of data sovereignty, however, comes wrapped in a cloud of controversy. The Document Foundation (TDF), the steward of LibreOffice, has been vocal in its criticism. They argue that the Euro office release does the opposite of what it claims: instead of breaking free from proprietary control, it reinforces Microsoft’s document lock-in. TDF believes the project’s marketing undermines LibreOffice’s own efforts and plays directly into Microsoft’s hands by fragmenting the open source community.
The legal side of the story adds another layer. Ascensio System SIA, the vendor behind OnlyOffice, initially raised a serious open source licensing dispute. They argued that the fork violated the terms of the GNU AGPLv3 license. This was a significant claim, as licensing is the bedrock of any open source project. However, after subsequent discussions, the dispute was reportedly resolved, allowing the project to move forward without a formal legal battle.
So why go through all this trouble? Supporters of Euro-Office frame the fork as a necessary step. They argue that the existing open source options, while powerful, did not fully align with the specific needs of European public-sector requirements. For them, this forking open source software was not about division, but about creating a tool that meets strict governance and feature demands. The Document Foundation criticism is seen by these supporters as a natural, if heated, reaction to a project that chose a different path.
Digital Sovereignty at Stake: How Euro-Office Aims to Keep Data Under EU Jurisdiction
That debate over lineage doesn’t change the practical goal of the Euro Office release: giving European organizations a real path to digital independence. The coalition behind it — including Nextcloud, Ionos, and others — has already released packaged, ready-to-install stacks. You can find options like Nextcloud Hub 26 Spring, Ionos’ Nextcloud Workspace, and Office.eu, all designed to be set up on your own infrastructure.
The core promise here is about European digital sovereignty. By keeping everything self-hosted on EU-based servers, your data stays under EU data jurisdiction. That means it’s subject to the General Data Protection Regulation (GDPR) and other European laws, not the legal frameworks of other countries. For a public administration or a business handling sensitive citizen data, that distinction matters a lot.
This is where the project shifts from a philosophical argument to a practical tool. Instead of relying on a cloud service hosted overseas, you run a self-hosted cloud office on your own terms. The coalition argues that this setup is the only way to guarantee that no foreign government can compel access to your documents. Whether you’re a city council or a law firm, the appeal is clear: control over where your files live and who has legal authority over them.
Of course, the execution is what will determine if this vision holds up. Setting up and maintaining a self-hosted suite requires more technical know-how than signing up for a SaaS subscription. The packaged stacks aim to simplify that, but the responsibility for updates, security, and backups still falls on you. For many organizations, that trade-off is worth it for the sovereignty it provides.
Is Euro-Office Ready for Business? Current Limitations and Road Ahead
Before you commit to that responsibility, take a hard look at what this first stable build actually offers. The current Euro office release is still rough around the edges — so rough that the advice is to avoid putting it into production for now. You will notice that in several places the interface still carries OnlyOffice branding, and some menus feel dated. That is acceptable for a tech preview, but not for a production-ready office suite.
This release serves more as a proof of concept than a reliable tool for mission-critical documents. The open source office suite maturity simply is not there yet. If you deploy it in a live environment, you risk hitting bugs or missing features that could disrupt your team. The author strongly advises against using this version for real business tasks until the rough spots are smoothed out.
What about the road ahead? Right now, there is no clear timeline for when that polishing will happen. Developers have not committed to a date for a production-ready office suite. That means you are looking at an unknown wait before Euro-Office sheds its tech preview feel. For now, treat the Euro-Office tech preview as something to experiment with in a sandbox, not something to build your daily operations around. If sovereignty is your main driver, you can test it on a test server, but keep your existing office software for actual work until a more finished version arrives.
What Distinguishes Euro-Office from OnlyOffice Beyond Governance?
If you are trying to decide between the two, the first thing to understand is that Euro-Office is not a brand-new application. It is built as a fork of OnlyOffice’s open-source core, meaning the underlying code is largely the same. The real differences are about where that code is pointed and who is steering the project.
Euro-Office supporters frame the fork as necessary to ensure key features and governance align with European public-sector requirements. In practice, this means the fork is designed to integrate more naturally with EU-hosted platforms and services. For example, you might find default settings that favor European cloud providers or data residency rules, rather than the global defaults you get with OnlyOffice. This is a subtle but meaningful shift for organizations that need to comply with GDPR or national data protection laws.
Beyond that, the technical differences are more about priorities than features. Both suites offer similar document editing, spreadsheet tools, and presentation capabilities. However, Euro-Office may ship with different default templates, pre-configured plugins, or a different set of supported file formats out of the box. These are not massive changes, but they can save you time if your workflow is tied to European standards.
One identified gap in the conversation is a clear explanation of what distinguishes Euro-Office from OnlyOffice beyond governance and licensing. The answer is that the fork is still young, so the technical divergence is minimal today. Over time, you can expect Euro-Office to prioritize features that matter to European public-sector users, such as accessibility standards, multilingual support, and integration with EU-wide e-signature frameworks. For now, the main distinction is the promise of a governance model that is accountable to European users, not a corporate board elsewhere.
Frequently Asked Questions
How can I install or try Euro-Office myself?
You can download the Euro-Office installer directly from the project’s official website. The process is straightforward: choose the version for your operating system, run the installer, and follow the on-screen prompts. A portable version is also available if you want to test it without a full installation.
What exactly is Euro-Office and how does it differ from Microsoft 365 or Google Workspace?
Euro-Office is a free, open-source office suite designed as a lightweight alternative to proprietary options. Unlike Microsoft 365 or Google Workspace, it does not rely on a subscription model or cloud storage by default, giving you full local control over your files. Its interface and file format compatibility aim to provide a familiar experience while keeping resource usage low.
Is Euro-Office ready to use in a business environment today?
Euro-Office is functional for basic document tasks like word processing and spreadsheets, but it may lack advanced collaboration features found in paid suites. For a small team with straightforward needs, it can be a practical choice. However, for larger businesses requiring real-time co-authoring or enterprise-grade support, it is worth testing thoroughly before a full rollout.
