Stackfield

End-to-end encrypted team collaboration

Munich, Germany · Founded 2012 · Freemium
A European alternative to Slack Discord Mattermost Rocket.Chat Microsoft Teams

About Stackfield

Stackfield is a German all-in-one team collaboration platform operated by Stackfield GmbH from Munich, founded in 2012. It bundles team chat, task and project management, video conferencing with screen sharing, document collaboration and a meeting/notes module in a single workspace. All data is stored exclusively in German data centres with end-to-end encryption of message content, and the company holds ISO 27001 certification. Stackfield is GDPR-compliant and is sold via Business, Premium and Enterprise plans with optional Office and AI add-ons; over 10,000 companies are reported as customers.

Quick facts

Pricing model Freemium
Free trial Yes
Open source
Self-hostable Yes
Public API Yes
Target audience B2B
Company size fit Sme
DPA available Yes
Data stored in EU Yes
Last verified by eubuilt.eu on 26 Apr 2026 — re-checks every 6 months Flag listing → Read our criteria →