European alternatives to WhatsApp
WhatsApp belongs to US corporation Meta and is tricky for business communication in data-protection terms. For teams and companies there are European messengers with end-to-end encryption, GDPR-compliant processing and, in some cases, self-hosting.
Why look for an alternative?
Reasons include GDPR-compliant business communication without Meta data outflow, end-to-end encryption without a mandatory phone number, and – for maximum sovereignty – the option to run the service yourself.
What to look for in an alternative
- End-to-end encryption by default
- Provider location and data processing in Europe (or Switzerland)
- Usable without a mandatory phone number/low metadata
- Self-hosting or on-premises option (for maximum control)
- Business features: administration, groups, possibly federation
The best European alternatives at a glance
Sorted by suitability as a replacement for the tool you searched. The Sovereignty Score independently rates how European and data-sovereign a provider is – so the two values can differ.
Swiss end-to-end encrypted messenger with a zero-knowledge architecture – servers in Switzerland, usable without a phone number.
Secure, open-source team communication from Switzerland/Germany – end-to-end encrypted chat, calls and files, self-hostable.
Secure messenger built on the open Matrix standard – open source, self-hostable, and used by the German armed forces, the French government and German healthcare.
Comparison table
| Providers | Fit | Sovereignty | Headquarters | Open Source | Self-hosting | EU hosting | Pricing |
|---|---|---|---|---|---|---|---|
| Threema | 90 | 86 | Switzerland | Cloud subscription (Threema Work, per user) / OnPrem (enterprise) | |||
| Wire | 85 | 86 | Switzerland | Open source (self-hosted) / cloud subscription (per user) | |||
| Element | 82 | 85 | United Kingdom | Open source (self-hosted, AGPL) / Enterprise per seat / Sovereign per deployment |
The top providers in detail
Threema is a secure messenger by Threema GmbH in Pfäffikon, Switzerland. Messages, calls and files are end-to-end encrypted; thanks to a zero-knowledge architecture and perfect forward secrecy, only the intended recipient can read the content – neither third parties nor Threema itself. The servers are located in an ISO 27001-certified data center in Zurich, and development takes place exclusively in Switzerland. The app clients are open source. For organizations, Threema Work offers a GDPR-compliant business variant, and Threema OnPrem a self-hostable solution. This makes Threema a strong fit for public authorities, regulated industries and teams with the highest privacy requirements.
Strengths
- End-to-end encryption with a zero-knowledge architecture
- Servers in Switzerland (ISO 27001), development in Switzerland
- Usable without phone number/email (data-minimising)
- Threema Work and OnPrem (self-hostable) for organizations
Weaknesses
- Only the app clients are open source; the server is proprietary
- More of a messenger than a full team collaboration hub
- Switzerland (EFTA), not an EU member state
Wire is a secure collaboration platform by Wire Swiss GmbH (Zug, with development in Berlin) offering end-to-end encrypted chat, voice and video calls, conferences and file sharing. Both client and server code are open source; organizations can self-host Wire with the open-source server or use the hosted version, which according to the provider runs in EU data centers (Germany, Ireland) and is ISO 27001/27701 certified. With its dual Swiss/EU setup and independent security audits, Wire is a sovereign European alternative to Slack or Microsoft Teams – especially for public authorities, regulated industries and teams with high confidentiality requirements.
Strengths
- End-to-end encrypted chat, calls and files
- Client and server open source, self-hostable
- Swiss/EU setup, EU data centers, ISO 27001/27701
- Independent security audits available
Weaknesses
- Smaller integration ecosystem than Slack/Teams
- Self-hosting (Kubernetes stack) requires operational expertise
- Fewer app marketplace and automation options than large US providers
Element is a messenger for chat, voice and video built on the open, decentralised Matrix protocol. Because the Matrix server (Synapse) can be self-hosted – right down to your own air-gapped data centre – data sovereignty stays entirely in your hands, independent of the vendor's location. That is exactly why Element/Matrix has become a flagship of European digital sovereignty: the German armed forces' BwMessenger (over 100,000 users), the French government messenger Tchap (over 300,000 staff) and the TI-Messenger in German healthcare (gematik) all rely on it. The Community edition is free under the AGPL; Enterprise (per seat) and the air-gapped Sovereign variant are offered individually and are certified to ISO/IEC 27001:2022, among others.
Strengths
- Open standard (Matrix), no lock-in – full federation and interoperability
- Self-hosting possible, up to air-gapped operation
- Open source (AGPL), independently auditable
- Top-tier references: German armed forces, French government, gematik
Weaknesses
- Headquartered in the UK (post-Brexit third country, but with an EU adequacy decision)
- Enterprise pricing only on request
- Self-hosting requires operational know-how
- Less polished than commercial consumer messengers
Migration effort
| Providers | Migration effort | Fit |
|---|---|---|
| Threema | low | 90/100 |
| Wire | medium | 85/100 |
| Element | medium | 82/100 |
When switching pays off
Switching is worthwhile for internal and customer communication at companies, authorities and associations. Threema is the simplest business app; Wire and Element (Matrix) are strong where self-hosting or open standards are required.
When to stick with your current tool
For purely private communication with contacts who only use WhatsApp, the network effect remains an argument. For business data, however, the privacy advantages of European messengers clearly outweigh it.
Frequently asked questions
Can WhatsApp be used in a GDPR-compliant way at work?
Which alternative is easiest to roll out?
The Sovereignty Score is an editorial orientation aid, not legal advice. How we rate.