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 Collabora Office. If that doesn't suit you, our users have ranked more than 25 alternatives to Microsoft 365 (Office) and nine 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 SSuite Office, Zimbra Collaboration Suite, Open365 and Collabora Online.

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Microsoft 365 (Office) alternatives are mainly Office Suites but may also be Spreadsheet Apps or Word Processors. Other popular filters includes Windows + Free. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Microsoft 365 (Office) .

Microsoft 365 (Office)

851

Word Processor
Freemium • Proprietary

Microsoft 365 is a suite of productivity software, collaboration tools, and cloud services owned by Microsoft. It includes online platforms like Outlook.com , .

More about Microsoft 365 (Office)

Microsoft 365 (Office) alternatives page was last updated Jun 28, 2024

ONLYOFFICE
ONLYOFFICE is an open-source, online office suite that includes editors for documents, spreadsheets, presentations, and forms. It supports all common formats and MS Office files.
65 ONLYOFFICE alternatives
License model
- Free Personal • Open Source
Application types
- Word Processor
- Office Suite
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Self-Hosted
- AppImageHub
- Snapcraft
- Flathub
- Software as a Service (SaaS)
- Flatpak
- Cloudron
+7
Top ONLYOFFICE Features
1. Compatible with Microsoft Office
2. Works Offline
3. Real time collaboration
4. Tabbed interface
5. Nextcloud integration
6. Team Collaboration
7. Project Management
8. Export to PDF
9. Multiple languages
10. Portable
11. Dark Mode
12. Cloud based
Show all NaN ONLYOFFICE features ▾
ONLYOFFICE VS Microsoft 365 (Office)
Is ONLYOFFICE a good alternative to Microsoft 365 (Office) ?
Comments about ONLYOFFICE as an Alternative to Microsoft 365 (Office)

Jatan Mehta
Doesn't mess up formatting like LibreOffice does.
Top positive comment •Jan 4, 2019
9
thomickcz
Runs on Linux, open source, fast, nice and easy, compatible with MS Office documents.
Top positive comment •Feb 9, 2022
4
nguyenkhoi-luong-56
It's free and open source software. Compatible with most Microsoft Office documents. Doesn't track you at all.
Positive comment •Jun 27, 2024
0
maurosoft391
ONLYOFFICE is a good alternative to MS office (365). the UI is similar, it's as fast as MS office and it's free and open-source. the formatting is not a problem than the messed up problems in LibreOffice. and the fonts that LibreOffice messes up are shown correctly.
Positive comment •Jan 5, 2024
2
Myliiee
This is the best alternative to Office 365, as it is the most similar service out of the box
Positive comment •Aug 28, 2023
0
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5 of 20 comments
- Almost everyone thinks ONLYOFFICE is a great Microsoft 365 (Office) alternative.
- ONLYOFFICE is the most popular Web-based, iPhone, iPad, Android Tablet, SaaS & Self-Hosted alternative to Microsoft 365 (Office) .
- ONLYOFFICE is Free Personal and Open SourceMicrosoft 365 (Office) is Freemium and Proprietary

CryptPad
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.
63 CryptPad alternatives
License model
- Freemium • Open Source
Application types
- Office Suite
- Spreadsheet App
Platforms
- Self-Hosted
- Software as a Service (SaaS)
+7
Top CryptPad Features
1. End-to-End Encryption
2. Real time collaboration
3. Collaborative writing
4. No registration required
5. Privacy focused
6. Kanban Board
7. Ad-free
8. No Tracking
9. Cloud Sync
10. Support for MarkDown
11. Works Offline
12. WYSIWYG HTML Editor
Show all NaN CryptPad features ▾
CryptPad VS Microsoft 365 (Office)
Is CryptPad a good alternative to Microsoft 365 (Office) ?
Comments about CryptPad as an Alternative to Microsoft 365 (Office)

kaspian
Great thing to selfhost, it uses E2EE
Positive comment •Jan 30, 2023
0
- Almost everyone thinks CryptPad is a great Microsoft 365 (Office) alternative.
- CryptPad is Freemium and Open SourceMicrosoft 365 (Office) is Freemium and Proprietary
- CryptPad is Privacy focusedMicrosoft 365 (Office) is not according to our users

Collabora Office
The enterprise-ready edition of LibreOffice provides you the powerful on-premise office suites, that enable you to access documents, author new content and work collaboratively. For Windows, macOS, Linux, Android, iOS and Chrome OS.
39 Collabora Office alternatives
License model
- Freemium • Open Source
Application types
- Spreadsheet App
- Office Suite
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
- Chrome OS
- Android Tablet
- iPad
- Software as a Service (SaaS)
- Cloudron
- Self-Hosted
Top Collabora Office Features
1. Ad-free
2. Works Offline
3. Convert Excel to PDF document
4. Convert Word documents to PDF
5. No registration required
6. No Tracking
7. Dark Mode
8. Built-in PDF converter
9. Macro Recording
10. Support for 64 bit
11. Multiple languages
Show all NaN Collabora Office features ▾
Collabora Office VS Microsoft 365 (Office)
Is Collabora Office a good alternative to Microsoft 365 (Office) ?

SSuite Office
SSuite Office is the foremost provider of Free quality office software on the internet today.
40 SSuite Office alternatives
License model
- Free • Proprietary
Application types
- Word Processor
- Office Suite
Platforms
- Windows
- Linux
- Online
- Self-Hosted
+9
SSuite Office Features
1. Text editing
2. DRM Free
3. Progressive Web App
4. Thumbnail preview
5. Tables
6. LAN
Show all NaN SSuite Office features ▾
SSuite Office VS Microsoft 365 (Office)
Is SSuite Office a good alternative to Microsoft 365 (Office) ?
Comments about SSuite Office as an Alternative to Microsoft 365 (Office)

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 •Nov 15, 2016
3
Guest
It does not require Java or.NET to be loaded on your computer!
Positive comment •Mar 26, 2018
1
- Most users think SSuite Office is a great Microsoft 365 (Office) alternative.
- SSuite Office is Free and ProprietaryMicrosoft 365 (Office) is Freemium and Proprietary

Zimbra Collaboration Suite
Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors.
43 Zimbra Collaboration Suite alternatives
License model
- Freemium • Open Source
Application types
- Mail Server
- Calendar App
Platforms
- Linux
- Online
- Self-Hosted
Zimbra Collaboration Suite Features
Real time collaboration
ActiveSync
Active Directory integration
Show all NaN Zimbra Collaboration Suite features ▾
Zimbra Collaboration Suite VS Microsoft 365 (Office)
Is this a good alternative to Microsoft 365 (Office) ?

Open365
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!.
36 Open365 alternatives
License model
- Free • Open Source
Application types
- Office Suite
- Email Client
Platforms
- Android
- Self-Hosted
Open365 Features
Cloud Sync
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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.
Open365 VS Microsoft 365 (Office)
Is Open365 a good alternative to Microsoft 365 (Office) ?

Collabora Online
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.
22 Collabora Online alternatives
License model
- Paid • Open Source
Application types
- Word Processor
- Office Suite
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Chrome OS
- Android Tablet
- iPad
- Self-Hosted
- Software as a Service (SaaS)
+4
Top Collabora Online Features
1. Online collaboration
2. Multiple languages
3. Privacy focused
4. Import CSV Data
5. Full-Text Search
6. WYSIWYG Support
7. Ad-free
8. Real time collaboration
9. Spell Checking
10. Dark Mode
11. Web-Based
12. Online editor
Show all NaN Collabora Online features ▾
Collabora Online VS Microsoft 365 (Office)
Is Collabora Online a good alternative to Microsoft 365 (Office) ?