EU alternatives to Slack (2026)

EU-built team chat and messaging platforms with servers hosted in Europe, strong data residency guarantees, and GDPR compliance.

7 EU-built startups found

Livestorm
Browser-based webinar and virtual event platform — a French alternative to Zoom Webinars.
Collaboration, Video Conferencing
Whereby
Browser-based video meetings with no downloads required — a Norwegian alternative to Zoom.
Collaboration, Video Conferencing
Element
Secure, decentralised messaging built on Matrix — a UK alternative to Slack and Microsoft Teams.
Collaboration, Messaging, Open Source
Nuclino
Lightweight team wiki and knowledge base — a German alternative to Notion and Confluence.
Collaboration, Knowledge Management
Miro
Online visual collaboration and whiteboard platform — a Dutch alternative to Mural.
Collaboration, Project Management
Wire
Secure end-to-end encrypted messaging and collaboration — a European alternative to Slack and Microsoft Teams.
Collaboration, Messaging, security
Nextcloud
Self-hosted productivity platform for files, calendar and collaboration — a European alternative to Google Workspace.
Cloud Storage, Collaboration, Open Source