EU sovereignMessagingHeadquarters: FR

Fluux: sovereignty score and 8 European alternatives

Fluux is a hosted real-time messaging service built on the open XMPP and MQTT standards. It is aimed at developers and companies that want to add chat, bots, live updates or device messaging to their own applications, through APIs and a managed ejabberd server. Fluux is offered as a SaaS platform, and the provider states that customers can later move to a self-hosted setup.

Fluux is operated by ProcessOne SAS, a company registered in Paris, France, which states that it is privately owned, self-funded and has no outside investors. The service runs on Amazon Web Services, and customers can choose a US, EU or other AWS data location. Fluux describes itself as EU GDPR compliant. For a European organisation, the Paris seat, the absence of foreign investors, the EU hosting option and the possibility of self-hosting are the relevant points; the dependency on AWS remains a factor to assess.

See the 8 European alternatives ↓Assess your stack with Fluux pre-selected

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Sovereignty score

59 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-2100
Headquartered in the EU: European law applies
Data residency SOV-350
Hosting inside and outside Europe (EU, US, OTHER)
Cryptographic key sovereignty SOV-360
Key management with a European vendor
Freedom from lock-in SOV-640
Closed source: switching requires data migration
Source & runtime sovereignty SOV-4 · SOV-645
Closed source, runtime with the vendor

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 12, 2026

Headquarters	FR (EU)Verified by hand
Sovereignty model	Vendor-hosted (EU)Verified by hand
Data hosting	EU, US, OTHERVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	YesVendor-stated
Category	Messaging
Type	Product
Website	fluux.io ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Fluux

The European alternatives to Fluux come from our knowledge base of over 7,800 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

29 European Messaging 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 Fluux

Fluux 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.

Fluux hosts data in EU, US, OTHER. Exactly what stays within the EU — and what does not — is defined by the vendor's data processing agreement and sub-processor list, not by a setting you control yourself; check those documents for the precise scope, including backups, logs and support access.

Fluux is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

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

It depends on your use case. Strong EU alternatives to Fluux include 360dialog, Balsio and Berty. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Fluux?

Yes. Open-source EU alternatives to Fluux include Berty, Conversations (XMPP), Delta Chat and Dino. These keep your data fully under your own control and let you self-host if you want to.

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

Fluux is headquartered in FR (EU) and hosts data in EU, US, OTHER. That makes Fluux 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 12, 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 Messaging

Messaging: Personal messaging — chat, group conversations, media sharing. 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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