Office Online is not available as a self-hosted solution but there are some alternatives for power users and business that want to host a solution on-premise. The best Self-Hosted alternative is ONLYOFFICE, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Office Online and seven of them are available as a self-hosted solution so hopefully you can find a suitable replacement. Other interesting Self-Hosted alternatives to Office Online are CryptPad (Freemium, Open Source), Sentrifugo HRMS (Free, Open Source), Collabora Online (Paid, Open Source) and SSuite Office (Free).
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.
Sentrifugo is an Open Source HRMS Tool which can be easily configured to meet your organizational needs. It's completely FREE and has no hidden costs! Sentrifugo offers you a bundle of exceptional features and modules for managing your HR processes.
show more ▾
Sentrifugo HRMS vs Office Online opinions
pros, cons and recent comments
It's no office system, it's human ressource management
Collabora Online is a powerful LibreOffice-based online office suite with collaborative editing, which supports all major document, spreadsheet and presentation file formats and works in all modern browsers.
Keikai is the only Web Spreadsheet designed and architected for big data — and is the fastest web spreadsheet regardless of size. Other advanced features include embeddable in your Web Apps, providing true Excel experiences and more.