Mattermost
Open-source team messaging for mission-critical work — self-hosted, air-gappable, with playbooks, AI agents, and integrations for DevOps and defence teams.
Open Source Free Tier
Visit website
💬
European Messaging & Chat Alternatives
European secure messaging and team chat applications.
25 alternatives available
Last updated
Why choose a European messaging & chat?
Team chat accumulates years of internal discussion, so leaving Slack or Microsoft Teams is mostly a question of where that archive ends up. Wire provides end-to-end encrypted messaging from Switzerland, Element builds on the open Matrix protocol and can be fully self-hosted, and Stackfield combines chat with project features on German servers. The deciding factors are usually the encryption model, self-hosting support, and whether the tool can import your existing Slack history rather than starting from zero.
This page lists 25 European messaging & chatoptions, ordered by our relevance score, an automated rating that weighs web presence, community traction, product accessibility, EU & privacy commitment and ecosystem coverage. Every entry is headquartered in the EU/EEA or Switzerland and EU-majority-owned, so you can shortlist a credible replacement for Microsoft Teams, Discord or any other non-EU incumbent in minutes.
Stackfield
End-to-end encrypted project management and team collaboration platform. German-hosted with ISO 27001 certification for sensitive business data.
Wire
Connect, message, and share files with industry-leading end-to-end encryption. Trusted by 1,800+ organizations for secure, compliant collaboration.
Pexip
Norwegian secure video platform that runs on your own infrastructure or any cloud and interoperates across Teams, Zoom, Meet and Cisco.
Threema
GDPR-compliant secure messenger from Switzerland offering end-to-end encryption, anonymous communication, and self-hosting options for businesses and individuals.
Element
Experience secure, end-to-end encrypted messaging and collaboration. A decentralised platform for sovereign communication, offering self-hosting or managed services.
Open Source Free Tier
Visit website
mailbox.org
Secure, ad-free email service with online office, cloud storage, and video conferencing. GDPR-compliant with servers in Germany. Plans from €1/month.
RealTyme
Sovereign communication platform with end-to-end encryption, zero-trust architecture, and post-quantum cryptography for governments, defence, and critical infrastructure teams.
ginlo
Encrypted messaging made in Germany with free personal accounts, business administration, and full data hosting on German servers.
Free Tier
Visit website
Smartsupp
Czech live chat for online stores combining chat, chatbots and visitor session recordings, so shops see what customers do and answer in real time.
Lime Connect
Swedish customer communication tool from the Lime family, helping companies reach customers through chat and messaging tied into CRM workflows.
Fleep
Professional messenger connecting teams within and across organizations. Features task management, file sharing, email integration, and cross-platform support from €5/month.
ClickMeeting
Polish browser-based webinar and video conferencing platform with automated webinars, paid events, breakout rooms, recordings and HubSpot, Salesforce and Moodle integrations.
Free Tier
Visit website
Jitsi
Conduct secure, free, open-source video conferences on web and mobile. No account required. Integrate into your apps or host on your own servers.
Private Discuss
Sovereign French communication suite with end-to-end encrypted messaging, HD video conferencing, webinars, and white-label deployment for governments and sensitive enterprises.
Livestorm
All-in-one platform for webinars, virtual meetings & events. Features easy setup, customization, CRM sync & secure EU hosting. Boost engagement effortlessly.
Sensorpro
EU-based email marketing platform with unlimited contact storage, AI content creation, and trusted sender network for better deliverability.
Leviia Next
French collaborative platform based on Nextcloud open-source. Document editing, chat, video calls, and file sharing hosted on sovereign cloud infrastructure.
Notifuse
Free open-source email platform for newsletters and transactional emails. Self-hosted alternative to Mailchimp with visual MJML editor, A/B testing, and analytics.
mosa.cloud
Complete EU-hosted workspace with Docs, Meet, Drive, Mail & AI. Pay for usage, not seats. Open source foundation with no vendor lock-in.
Fluxer
Open-source instant messaging platform from Sweden with VoIP, screen sharing, moderation tools, and self-hosting options. Built for friends and communities.
VNClagoon
Integrated open-source communication platform with messaging, video conferencing, email, and project management. Secure alternative to mainstream solutions with data sovereignty.
Plunk
Open-source email platform combining marketing, transactional, and broadcast emails in one solution. EU-hosted with transparent pricing at $0.001/email.
Matrix
Matrix.org provides an open network protocol enabling secure, decentralized messaging and communication across platforms with end-to-end encryption.
Frequently asked questions
Why choose a European messaging & chat tool?
European messaging & chat providers, such as Mattermost and Stackfield, operate under the GDPR by default, store data inside the EU, and fall outside the reach of US surveillance laws such as FISA 702 and the CLOUD Act. For regulated industries and anyone handling personal data about EU citizens, that eliminates the Schrems II transfer-impact-assessment burden and reduces the risk of a compliance incident triggered by your vendor rather than by you.
Are European messaging & chat tools GDPR-compliant by default?
Almost always yes. A product built for the European market is designed around GDPR from day one: lawful basis, data-subject rights, breach notification, data-residency controls and EU-based sub-processors are standard rather than add-ons. We still recommend reviewing each vendor's DPA and sub-processor list for your specific use case, but the baseline is materially stronger than with many US-headquartered alternatives.
How do I migrate from Microsoft Teams to a European messaging & chat?
Most European messaging & chat providers publish migration guides or provide importers for the major incumbents. A typical switch from Microsoft Teams or Discord follows three steps: (1) export your data from the existing tool, (2) choose an EU provider whose feature set and pricing match your use case (this page lists 25 options, ordered by our relevance score, with Mattermost and Stackfield currently ranked highest), and (3) run both side-by-side for a billing cycle before cutting over. Start with the free tier or trial wherever it is offered.
Where are these messaging & chat companies based?
Every product listed here is headquartered in an EU or EEA member state (or Switzerland) and EU-majority-owned. Subsidiaries of US or other non-EU parent companies are excluded. Each card shows the provider's home country, so you can favour a specific jurisdiction when internal policy or public-sector procurement rules require data to stay in a single country.
Do European messaging & chat products cost more than US alternatives?
Usually no. Pricing is broadly comparable, and several European providers, particularly in hosting, email and collaboration, are significantly cheaper than the US market leaders while offering more generous free tiers and open-source options. Open-source products in this list are marked accordingly so you can self-host when that matters.