Nextcloud
Achieve data sovereignty with a self-hosted content collaboration platform. Features file sync, chat, video calls, groupware, and an online office suite.
Open Source Free Tier
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#microsoft-office
6 European products tagged Microsoft Office. Discover privacy-focused, GDPR-compliant European alternatives.
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.
Collabora Online
Powerful online document editing suite for teams. Compatible with Microsoft Office, GDPR compliant, self-hosted. Easy integration with 200+ partners worldwide.
Leviia Next
French collaborative platform based on Nextcloud open-source. Document editing, chat, video calls, and file sharing hosted on sovereign cloud infrastructure.
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.
ONLYOFFICE
Open-source online editor for documents, spreadsheets, presentations, and PDFs. Features real-time collaboration, AI integration, and accessibility tools.