EU Sovereignty Score
Self-hosted / open sourceAIHeadquarters: US

Open WebUI: sovereignty score and 8 European alternatives

Open WebUI is a self-hosted AI platform that you connect to Ollama and to OpenAI-compatible APIs. It provides a chat environment that you extend with Python tools, functions and prompts, and according to the project it can run entirely offline. You install it with pip, with Docker or on Kubernetes using Helm. For organisations there is an enterprise licence that includes single sign-on, role-based access control, audit logs and deployment in air-gapped environments.

Open WebUI is developed by Open WebUI, Inc., based in San Francisco in the United States. The code is not open source by the OSI definition: from version 0.6.6 it falls under its own licence, based on BSD-3 with a clause that restricts changing the branding unless there are 50 or fewer users or an enterprise licence is in place. Because the software runs on your own infrastructure, you decide where data is stored; the company does not offer a hosted service. Which data reaches external models depends on the provider you connect.

See the 8 European alternatives ↓Assess your stack with Open WebUI pre-selected
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Sovereignty score
55 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-210
    Headquartered in the US: CLOUD Act and FISA 702
  • Data residency SOV-3100
    No hosting in Europe (US)
  • Cryptographic key sovereignty SOV-380
    Closed source, but self-hostable: encryption keys and runtime under your own control
  • Freedom from lock-in SOV-640
    Closed source: switching requires data migration
  • Source & runtime sovereignty SOV-4 · SOV-645
    Closed source, but self-hostable on your own infrastructure

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 10, 2026
Headquarters
US (US)Verified by hand
EU adequacy decision
Only for companies individually certified under the EU-US Data Privacy FrameworkVerified by hand
Data hosting
Self-hosted, e.g. in US (your choice)Verified by hand
Open-source
NoVerified by hand
GDPR-compliant
YesVendor-stated
Category
AI
Type
Product
Website
openwebui.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Open WebUI

The European alternatives to Open WebUI come from our knowledge base of over 6,800 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

55 European AI 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 Open WebUI

Open WebUI is headquartered in the United States. US vendors fall under the CLOUD Act and FISA 702: US authorities can compel access to data, even when that data sits in a European data centre. That is the core of the jurisdictional exposure in our model.

Open WebUI runs on infrastructure you choose and control yourself. You decide where the data lives, including fully within the EU if you want — this is not a fixed hosting choice made by the vendor.

Open WebUI is closed source, but you run the software yourself on your own infrastructure. The encryption keys and the runtime therefore stay under your own control, though you cannot audit or modify the source code. Ask about export options and open standards to limit software-level lock-in.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Open WebUI 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 Open WebUI?

It depends on your use case. Strong EU alternatives to Open WebUI include llama.cpp, Mistral AI and Langdock. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Open WebUI?

Yes. Open-source EU alternatives to Open WebUI include llama.cpp and Mistral AI. These keep your data fully under your own control and let you self-host if you want to.

Is Open WebUI GDPR-compliant and where is the data hosted?

Open WebUI is headquartered in US and hosts data in US. The vendor states it is GDPR-compliant, but the data falls under non-EU jurisdiction. For full EU data residency the EU alternatives on this page usually offer more certainty.

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 10, 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

Digital sovereignty in AI

AI: Artificial intelligence — large language models, translation, generative AI. 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 Open WebUI — GDPR-compliant & EU-hosted · EU Sovereignty Score