EU Sovereignty Score
Self-hosted / open sourceData Platform & WarehouseHeadquarters: FR

Onyxia: sovereignty score and 8 European alternatives

Onyxia is a web application that gives data scientists a working environment on a Kubernetes cluster. Through one interface, users launch services from a catalogue of Helm charts, such as Jupyter and RStudio, choose the memory, CPU and GPU they need, set init scripts and environment variables, and save their configurations. It integrates with S3-compatible object storage, Vault for secrets and Keycloak for sign-in. The catalogue of services is not part of the application, so an organisation can define its own. Onyxia is installed with Helm on your own Kubernetes infrastructure.

Onyxia is developed by Insee, the French national statistics institute, and supported by the French interministerial digital directorate DINUM. It is released under the MIT licence and appears in the French government's SILL of recommended free software. Because you deploy it on infrastructure you choose, workloads and data stay with you, and there is no vendor-hosted service. The project team also runs a public instance, but the software does not depend on it.

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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 14, 2026
Headquarters
FR (EU)Verified by hand
Sovereignty model
Open-source, distributedVerified by hand
Data hosting
EUVerified by hand
Open-source
YesVerified by hand
GDPR-compliant
YesVendor-stated
Category
Data Platform & Warehouse
Type
Product
Website
onyxia.sh ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Onyxia

The European alternatives to Onyxia come from our knowledge base of over 8,400 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

21 European Data Platform & Warehouse 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 Onyxia

Onyxia is headquartered in FR 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 Onyxia scores best on data residency.

Onyxia 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 Onyxia 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 Onyxia?

It depends on your use case. Strong EU alternatives to Onyxia include AxonIQ, Datarchipel and DuckDB. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Onyxia?

Yes. Open-source EU alternatives to Onyxia include Datarchipel, DuckDB, Eclipse Dataspace Components, Eclipse Tractus-X and Garage. These keep your data fully under your own control and let you self-host if you want to.

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

Onyxia is headquartered in FR (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes Onyxia 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 14, 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 Data Platform & Warehouse

Data Platform & Warehouse: Lakehouses, cloud data warehouses, data-lake storage and analytical databases for enterprise-wide analysis. 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.

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