European alternatives to Slack

Slack is a US-based team messaging and collaboration platform. Owned by Salesforce, all messages and files are stored on servers in the United States.

This page lists European alternatives from companies based in a member state of the European Union (EU) or the European Free Trade Association (EFTA).

Element

United Kingdom UK EU hosted Open source Free plan

Website

Element is a secure, decentralised messaging and collaboration app built on the open Matrix protocol. It is fully self-hostable and used by governments and public sector organisations across Europe, including the French and German governments.

Wire

Switzerland EFTA EU hosted Open source

Website

Wire is an end-to-end encrypted messaging and collaboration platform from Switzerland, purpose-built for businesses, enterprises, and government organisations that require the highest level of communication security.

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