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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#online-office
4 European products tagged Online Office. Discover privacy-focused, GDPR-compliant European alternatives.
Infomaniak kSuite
Complete productivity suite bundling mail, cloud drive, office documents, video meetings, team chat, and a sovereign AI assistant, hosted exclusively in Switzerland.
Free Tier
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Collabora Online
Powerful online document editing suite for teams. Compatible with Microsoft Office, GDPR compliant, self-hosted. Easy integration with 200+ partners worldwide.
ONLYOFFICE
Open-source online editor for documents, spreadsheets, presentations, and PDFs. Features real-time collaboration, AI integration, and accessibility tools.