Self-Hosted Microsoft 365 (Office) Alternatives

Microsoft 365 (Office) 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. It's not free, so if you're looking for a free alternative, you could try CryptPad or Open365. If that doesn't suit you, our users have ranked more than 25 alternatives to Microsoft 365 (Office) and six of them are available as a self-hosted solution so hopefully you can find a suitable replacement. Other interesting Self-Hosted alternatives to Microsoft 365 (Office) are Collabora Online, SSuite Office and SmartOffice.

Microsoft 365 (Office) alternatives are mainly Office Suites but may also be Spreadsheet Apps or Word Processors. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Microsoft 365 (Office).

Microsoft 365 (Office) alternatives page was last updated

Microsoft 365 (Office)

771

Paid • Proprietary
Office Suite

Microsoft 365 (formerly Microsoft Office Suite) is an office suite of applications, servers and services.

More about Microsoft 365 (Office)

ONLYOFFICE
Is this is a good alternative?
Yes
No
Free Personal • Open Source
Office Suite
Word Processor
Spreadsheet App
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
Self-Hosted
AppImageHub
Snapcraft
Flathub
Software as a Service (SaaS)
Flatpak
Cloudron
64 ONLYOFFICE alternatives
ONLYOFFICE is an open-source online collaborative office combining editors for documents, spreadsheets, presentations, and forms. It is compatible with all popular formats and features maximum support for MS Office files.
- - ONLYOFFICE is the most popular Web-based, Android, iPhone, iPad, Android Tablet, SaaS & Self-Hosted alternative to Microsoft 365 (Office).
Suggest and vote on features
ONLYOFFICE Features
1. Works OfflineONLYOFFICE can be used without the need to connect to the internet.
2. Real time collaborationMultiple users can work together in ONLYOFFICE simultaneously.
3. PortableONLYOFFICE can be used from a USB stick or similar with no prior installation.
4. End-to-End EncryptionONLYOFFICE has E2E Encryption, for entire or parts of the app.
5. Dark ModeONLYOFFICE supports dark mode for comfortable usage in low light conditions.
6. Ad-freeONLYOFFICE doesn't contain any form of external advertising.
7. Spell CheckingONLYOFFICE can detect and correct all types of grammar and spelling mistakes.
8. Privacy focusedONLYOFFICE is considered a privacy friendly alternative.
Compatible with Microsoft Office
Tabbed interface
Nextcloud integration
FOSS
Cloud based
Export to PDF
Multiple languages
Collaborative Workspaces
Integrated Youtube support
Built-in translation
Comments about ONLYOFFICE as a Alternative to Microsoft 365 (Office)
Almost everyone thinks ONLYOFFICE is a great Microsoft 365 (Office) alternative.
all • positive • negative relevance • date
Jatan Mehta
Doesn't mess up formatting like LibreOffice does.
Top positive comment•
8

thomickcz
Runs on Linux, open source, fast, nice and easy, compatible with MS Office documents.
Top positive comment•
4

Myliiee
This is the best alternative to Office 365, as it is the most similar service out of the box
Positive comment•
0

Victor Bennie
ONLTOFFICE serves the same purpose that MS office does and has similar features but ONLYOFFICE is free and opensource. You can install it on Linux.
Positive comment•
1

NECOdes
wish it had more features, but it's fast on the other hand
Positive comment•
0

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5 of 18 comments
CryptPad
Is this is a good alternative?
Yes
No
Freemium • Open Source
Office Suite
Word Processor
Spreadsheet App
Self-Hosted
Software as a Service (SaaS)
67 CryptPad alternatives
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.
Suggest and vote on features
CryptPad Features
1. End-to-End EncryptionCryptPad has E2E Encryption, for entire or parts of the app.
2. Real time collaborationMultiple users can work together in CryptPad simultaneously.
3. No registration requiredYou can use most of the features in CryptPad without registration.
4. Privacy focusedCryptPad is considered a privacy friendly alternative.
5. Kanban BoardCryptPad allows you to organize your workflow by moving cards with drag-and-drop functionality between multiple columns.
6. No TrackingCryptPad will not track you or use your personal data.
7. Support for MarkDownCryptPad supports MarkDown for document formatting.
8. WYSIWYG HTML EditorCryptPad allows you to make and preview changes to an application or website in real time, without needing to know code.
9. WYSIWYG SupportCryptPad integrates a WYSIWYG editor to edit the look and content of a document, page, or file.
Collaborative writing
Document sharing
Privacy
Direct file uploading
Encrypted Notes
Multiple languages
Comments about CryptPad as a Alternative to Microsoft 365 (Office)
Almost everyone thinks CryptPad is a great Microsoft 365 (Office) alternative.
kaspian
Great thing to selfhost, it uses E2EE
Positive comment•
0
Open365
Is this is a good alternative?
Yes
No
Free • Open Source
Office Suite
Email Client
Android
Self-Hosted
38 Open365 alternatives
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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Open365 Features
1. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
Discontinued
The project seems to be no longer developed. Last commit on the GitHub repo was made on June 27th, 2016, but it can be still downloaded and installed.

Opinions about Open365 as a Alternative to Microsoft 365 (Office)
Almost everyone thinks Open365 is a great Microsoft 365 (Office) alternative.
Collabora Online
Is this is a good alternative?
Yes
No
Paid • Open Source
Office Suite
Word Processor
Spreadsheet App
Mac
Windows
Linux
Online
Android
iPhone
Chrome OS
Android Tablet
iPad
Self-Hosted
Software as a Service (SaaS)
19 Collabora Online alternatives
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.
Suggest and vote on features
Collabora Online Features
1. Privacy focusedCollabora Online is considered a privacy friendly alternative.
2. Ad-freeCollabora Online doesn't contain any form of external advertising.
3. Real time collaborationMultiple users can work together in Collabora Online simultaneously.
Online collaboration
Multiple languages
Web-Based
Cloud based
Online editor
SSuite Office
Is this is a good alternative?
Yes
No
Free • Proprietary
Word Processor
Office Suite
Spreadsheet App
Windows
Linux
Online
Self-Hosted
45 SSuite Office alternatives
SSuite Office is the foremost provider of Free quality office software on the internet today.
Suggest and vote on features
SSuite Office Features
1. DRM FreeNo Digital rights management (DRM), i.e. no copy protection.
Text editing
Progressive Web App
Thumbnail preview
Tables
LAN
Comments about SSuite Office as a Alternative to Microsoft 365 (Office)
Most users think SSuite Office is a great Microsoft 365 (Office) alternative.
Guest
It does not require DotNet or Java to run. It runs natively on all WIN32 systems. That means it can be installed and run on Windows 95 right up to Windows 10 without any problems. It supports only open document formats, like the Rich Text format (*.RTF), that can be opened by any office suite on any operating system without any formatting errors. It is a very small download and install and also does not use any resources from the system.
Positive comment•
3

Guest
It does not require Java or.NET to be loaded on your computer!
Positive comment•
1
SmartOffice
Is this is a good alternative?
Yes
No
Paid • Proprietary
Word Processor
Document Manager
PDF Reader
Mac
Windows
Online
Windows Mobile
Android
iPhone
Symbian S60
HP webOS
Blackberry
Android Tablet
iPad
Self-Hosted
Software as a Service (SaaS)
17 SmartOffice alternatives
SmartOffice is a lightweight and easy-to-use mobile document productivity suite available as an SDK or as a mobile app. View, edit, create, print, present and share Microsoft Office and PDF documents via your mobile device.
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SmartOffice Features
Dropbox integration
Convert Excel to PDF document
Sync with Google Drive
Compatible with Microsoft Office
Convert Word documents to PDF
Box.com integration
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