EU Sovereignty Score
Self-hosted / open sourceCloud Storage (Personal)Headquarters: DE

OpenCloud: sovereignty score and 8 European alternatives

OpenCloud is an open-source platform for file management, sharing and collaboration. Organisations use it to store files, share them internally and externally, and work on them together. The server is written in Go and signs users in through OpenID Connect. The maintainer addresses the public sector, research, education and businesses, and publishes new versions as rolling releases. NLnet funding under the EU's NGI Zero programme supports an implementation of the Open Cloud Mesh specification for sharing files between different cloud services.

OpenCloud is developed by OpenCloud GmbH in Berlin, Germany, which presents the product as the file-sharing and collaboration offering of a Berlin-based open-source IT group. The code is released under Apache-2.0 on GitHub. You can run it on your own infrastructure or obtain it as a hosted service through selected partners; the website does not say where partner-hosted data resides. The vendor describes the product as GDPR-compliant.

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Sovereignty score
94 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-2100
    Headquartered in the EU: European law applies
  • Data residency SOV-3100
    EU-only hosting
  • Cryptographic key sovereignty SOV-390
    Self-hostable: encryption keys under your own control
  • Freedom from lock-in SOV-680
    Open source: low switching costs
  • Source & runtime sovereignty SOV-4 · SOV-6100
    Source code auditable, forkable and self-hostable

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 16, 2026
Headquarters
DE (EU)Verified by hand
Data hosting
Self-hosted, e.g. in EU (your choice)Verified by hand
Open-source
YesVerified by hand
GDPR-compliant
YesVendor-stated
Category
Cloud Storage (Personal)
Type
Product
Website
opencloud.eu ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to OpenCloud

The European alternatives to OpenCloud come from our knowledge base of over 9,500 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

35 European Cloud Storage (Personal) vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with OpenCloud

OpenCloud is headquartered in DE and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

Data is hosted exclusively in the EU, so OpenCloud scores best on data residency.

OpenCloud is open source. You can audit the source code, self-host the software and keep the encryption keys under your own control. Switching is easier because data and software are not tied to a single party.

What this means for your organisation depends on your whole stack and context. The free assessment weighs OpenCloud together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to OpenCloud?

It depends on your use case. Strong EU alternatives to OpenCloud include ArcAbox, CargoServer and CloudMe. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to OpenCloud?

Yes. Open-source EU alternatives to OpenCloud include Cozy Cloud, Cryptee and Cyberduck. These keep your data fully under your own control and let you self-host if you want to.

Is OpenCloud GDPR-compliant and where is the data hosted?

OpenCloud is headquartered in DE (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes OpenCloud an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 16, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

In the changelog

Earlier changes to this page, as listed in the public changelog.

Digital sovereignty in Cloud Storage (Personal)

Cloud Storage (Personal): Personal cloud storage — sync and share files. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

Also in this category

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8 European alternatives to OpenCloud — GDPR-compliant & EU-hosted · EU Sovereignty Score