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Slack vs Wire: Which Ensures Better Encryption for Teams?

Explore how US-based Slack and Switzerland's Wire prioritize end-to-end encryption to keep your team's communications secure.

Last updated: February 6, 2026Reviewed by Built in EU Team

Should You Switch to Wire?

What You Gain

Gain end-to-end encryption and stronger data protection with Wire.

Privacy advantage
Trade-offs

May lose advanced project management tools and integrations.

Slack has more features
Bottom Line

Switch if privacy is a priority; stay with Slack for advanced features.

At a Glance

Data Location
🇺🇸US

US data laws

🇨🇭CH

GDPR protected

Pricing

Slack

Contact

Wire

freemium

Migration
Medium difficulty~Several hours to a few days, depending on workspace size and complexity

Privacy & Compliance Comparison

Critical data sovereignty factors at a glance

CriteriaSlackWire
Server Location
US (AWS), EU (optional)EU
GDPR Compliance
FullFull
Open Source
E2E Encryption
Enterprise onlyAll plans
Data Portability
Full exportFull export

CLOUD Act Notice

Slack is a US company and must comply with CLOUD Act data requests, even for data stored in EU data centers. Wire is not subject to US jurisdiction.

Switching from
Slack logo

Slack

🇺🇸

Salesforce

VS
Switching to
Wire logo

Wire

🇨🇭

Wire

US Data Storage

Data subject to US CLOUD Act and may be accessed by US authorities

EU Data Protection

Data protected under GDPR with EU-only data residency

Certifications & Compliance

No certifications listed

EU-Based
GDPR Compliant
Open Source
Self-Hostable
Swiss hosted

Reasons to Switch

  • End-to-end encryption ensures messages are secure from unauthorized access.
  • GDPR compliance means better data protection for EU users and organizations.
  • Self-hosted deployment option allows for greater control over data management.
  • Integrated video conferencing supports up to 10 participants in a call.

Things to Consider

  • !Migration from Slack may require significant time and resources.
  • !Missing advanced project management tools found in Slack's ecosystem.
  • !Learning curve for users accustomed to Slack's interface and features.
Migration difficulty:
Medium
~Several hours to a few days, depending on workspace size and complexity

Migration Overview

Full guide
Difficulty
Medium
Time Estimate
~Several hours to a few days, depending on workspace size and complexity

Depends on data size and complexity

Quick Steps

1

Create Wire account and configure settings

2

Export and prepare data from Slack

3

Import data, test integrations, and migrate users

Other alternatives to Slack

Ready to make the switch?

Start using Wire today and take control of your data privacy.