Best European alternatives to LibreOffice in 2026

Onlyoffice

Project Management

Verified

ONLYOFFICE Docs is a powerful European online office suite designed for businesses of all sizes looking for a secure, flexible, and cost-effective alternative for document workflows. It enables teams to create, edit, and collaborate on text documents, spreadsheets, presentations, PDFs and fillable forms in one unified workspace. With real-time co-editing, commenting, version history, document comparison, built-in communication features and an integrated AI assistant compatible with all popular AI tools and providers, ONLYOFFICE Docs helps teams work faster and more efficiently across departments and locations. Built with business needs in mind, ONLYOFFICE Docs combines broad format support, cross-platform access, and strong customization options with a security-first approach. The suite easily integrates into any web-based application, and some successfull integation examples include ownCloud, Nextcloud, Redmine, Odoo, Moodle, WordPress, Nuxeo, HumHub, Jira, Confluence, and more.

Zetaoffice

Project Management

EU Based

ZetaOffice brings LibreOffice to the browser, offering Writer, Calc, and Impress for document editing, spreadsheets, and presentations. It supports self-hosting or CDN deployment with full data control and API integration.