There are many alternatives to ONLYOFFICE as a self-hosted solution if you are looking for a replacement. The best Self-Hosted alternative is CryptPad, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to ONLYOFFICE and ten of them are available as a self-hosted solution so hopefully you can find a suitable replacement. Other interesting Self-Hosted alternatives to ONLYOFFICE are La Suite Docs, ZetaOffice, Euro-Office and IronCalc.
CryptPad is a private-by-design alternative to popular office tools and cloud services. All the content stored on CryptPad is encrypted before being sent, which means nobody can access your data unless you give them the keys.
France
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Collaborative platform for real-time note-taking, documentation, and wikis, featuring offline editing, granular permissions, AI-assisted writing, multiple export formats, user-friendly formatting, scalable team support, customizable templates, and open-source licensing.
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Experience LibreOffice in your browser with ZetaOffice, featuring device access, self-hosting or CDN deployment, API for tailored integration, and data control. Enjoy a comprehensive suite with Writer for formatting, Calc for data analysis, and Impress for presentations, optimized for performance.
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Euro-Office is a self-hostable document server — documents, spreadsheets, presentations, and PDFs — designed to integrate with a platform such as Nextcloud.
The democratization of spreadsheets. Empowering everyone with advanced, open-source spreadsheet solutions.
The open source cloud with LibreOffice online - LibreOffice online + Seafile + KDE. Improve your productivity and communicate better with your team members. The world is moving forward. Welcome to the open source cloud!.
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SSuite Office is the foremost provider of Free quality office software on the internet today.
South Africa
A self-hosted office suite for viewing, editing, and collaborating on DOCX, XLSX, and PPTX files. It also enables LLMs and AI applications to generate, edit, and automate Office documents.
South Korea
Open-source self-hosted .docx editor with real-time co-editing. Ribbon toolbar, paginated WYSIWYG layout, tracked changes, comments, spell check, and find & replace. Upload a .docx, share a password-protected link, edit together — no accounts, no lock-in.
WebODF is a JavaScript library that makes it easy to add Open Document Format (ODF) support to your website and to your mobile or desktop application. It uses HTML and CSS to display ODF documents.
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