Best Self-Hosted Office Online Alternatives in 2026
Office Online is the free web version of Microsoft Office with Word, Excel, and PowerPoint in the browser.
7 Self-Hosted Alternatives to Office Online
CryptPad
7.4KCryptPad gives you collaboration suite offering encrypted document editing on your own infrastructure.
CryptPad
7.4KCryptPad offers end-to-end encryption, open-source, collaborative editing as a self-hosted devops & infrastructure.
HedgeDoc
7KHedgeDoc lets you run realtime collaborative markdown notes on all platforms, formerly known as CodiMD and HackMD CE entirely on your own server.
ONLYOFFICE
6.4KONLYOFFICE is a self-hosted office suites tool with support for collaboration, spreadsheet, node.
LibreOffice
3.8KSelf-hosted communication & messaging tool that provides complete office suite compatible.
Colabora Online
3.1KColabora Online lets you run powerful online document editor entirely on your own server.
Graphite Docs
601For documents & knowledge base, Graphite Docs is a self-hosted solution that provides encrypted, secure, user-owned productivity suite.
Why Look for Office Online Alternatives?
Office Online is the free web version of Microsoft Office with Word, Excel, and PowerPoint in the browser.
Self-hosted alternatives give you full data ownership, predictable costs, and zero vendor lock-in. You run the software on your own infrastructure and control everything.
7 Best Open-Source Alternatives to Office Online
CryptPad
Encrypted and open source collaboration suite — 7,422 GitHub stars. Licensed under AGPL-3.0.
LibreOffice
LibreOffice: Free, open-source office suite. — 3,738 GitHub stars. Licensed under GPL-3.0.
CryptPad
End-to-end encrypted, open-source office suite. — 7,420 GitHub stars. Licensed under AGPL-3.0.
HedgeDoc
Web-based, self-hosted, real-time markdown editor. — 7,007 GitHub stars. Licensed under AGPL-3.0.
ONLYOFFICE
Collaborative online office suite for documents. — 6,338 GitHub stars. Licensed under AGPL-3.0.
Colabora Online
Full-featured, collaborative document editing solution. — 3,061 GitHub stars. Licensed under Open Source.
Read full Colabora Online review
Graphite Docs
Encrypted, secure, user-owned productivity suite. — 601 GitHub stars. Licensed under GPL-3.0.
Read full Graphite Docs review
Why Self-Host Instead of Office Online?
- Data ownership. Your data stays on your server, not on Office Online’s infrastructure.
- Predictable costs. Pay a fixed VPS cost instead of growing per-user or per-usage fees.
- No vendor lock-in. Export and migrate your data anytime. You control the database.
- GDPR and compliance. Hosting your own tools simplifies data residency and compliance requirements.
Why teams switch from Office Online
- → Data ownership. Your data stays on your server -- not on Office Online's infrastructure.
- → Predictable costs. Pay a fixed VPS cost instead of growing per-user or per-usage fees.
- → No vendor lock-in. Export and migrate your data anytime. You control the database.
- → GDPR and compliance. Hosting your own tools simplifies data residency and compliance requirements.
Browse more Documents & Knowledge Base tools
Explore 226 open-source documents & knowledge base tools you can self-host.
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