Self-hosted / open sourceCollaborationHeadquarters: DE

FluffyChat: sovereignty score and 8 European alternatives

FluffyChat is an open-source chat client for the Matrix protocol, written in Flutter. The app is available for Android, iOS, the web, Linux, Windows and macOS. Users can hold private and group chats and use spaces, polls, custom stickers and group video calls. End-to-end encryption is enabled by default for private chats. Because FluffyChat is built on Matrix, it interoperates with other Matrix clients such as Element. It is only a client: you need a Matrix homeserver.

FluffyChat is developed under the AGPL-3.0 licence by Christian Kußowski (krille-chan), a volunteer project in Germany funded by donations. Where messages are stored is determined by the homeserver you choose, not by the app; an organisation can pick its own or a European-hosted server. According to its privacy policy, the app communicates only with that server and with OpenStreetMap for maps. Push notifications pass through Firebase Cloud Messaging and a FluffyChat gateway and contain only event identifiers. The default servers are chosen by the developers, who give no guarantee about their trustworthiness.

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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 2, 2026

Headquarters	DE (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
Compliance documents	1 published, see belowVendor-stated
Hosting signal	FASTLY - Fastly, Inc., US (US)Technically measured
Category	Collaboration
Type	Product
Website	fluffychat.im ↗

The hosting signal shows the network that serves the vendor's website, often a CDN, and not necessarily where the service or your data is hosted. How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to FluffyChat

The European alternatives to FluffyChat 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

37 European Collaboration 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 FluffyChat

FluffyChat 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 FluffyChat scores best on data residency.

FluffyChat 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 FluffyChat 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 FluffyChat?

It depends on your use case. Strong EU alternatives to FluffyChat include BigBlueButton (self-host), CryptPad and Nextcloud Deck. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to FluffyChat?

Yes. Open-source EU alternatives to FluffyChat include BigBlueButton (self-host), CryptPad, Nextcloud Deck, HedgeDoc and Huly. These keep your data fully under your own control and let you self-host if you want to.

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

FluffyChat is headquartered in DE (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes FluffyChat 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 2, 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".

Security page / trust center: fluffychat.im/privacy

Provenance of the links above:Vendor-stated

Links checked on September 21, 2026.

Digital sovereignty in Collaboration

Collaboration: Team communication, file sharing, video conferencing, document editing. 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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