Open Source Microsoft 365 Copilot Alternatives Filtered by 'Presentation'

The best open source alternative to Microsoft 365 Copilot is LibreOffice. If that doesn't suit you, our users have ranked more than 50 alternatives to Microsoft 365 Copilot and five of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Microsoft 365 Copilot are ONLYOFFICE, Apache OpenOffice, Calligra Suite and NeoOffice.

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Microsoft 365 Copilot alternatives are mainly Office Suites, but if you're looking for Spreadsheet Apps or Word Processors you can filter on that. Other popular filters include Open Source, Paid, Android + Open Source, Windows + Free, Word Processing, Linux and Self-Hosted. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Microsoft 365 Copilot.

More about Microsoft 365 Copilot

Microsoft 365 Copilot alternatives page was last updated Jul 14, 2026

LibreOffice
3198 likes
Comprehensive free office suite supporting word processing, advanced spreadsheets, dynamic presentations, vector drawings, math formulas, and robust database management. Fully compatible with major office formats across all operating systems, it offers extensive capabilities for personal or professional tasks.
55 LibreOffice alternatives
Cost / License
Free
Open Source (GPL-3.0)
Application types
Word Processor
Spreadsheet
Origin
Germany
EU
Platforms
Mac
Windows
Linux
BSD
Snapcraft
Flathub
PortableApps.com
Flatpak
+9
Is LibreOffice a good alternative to Microsoft 365 Copilot?

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58comments
LibreOffice vs Microsoft 365 Copilot Comments

Top Positive Comment
Korwin
Nov 10, 2019
3
Free, Windows, full Microsoft Office (.doc, .xls), Microsoft Office Open XML, OpenDocument, and Portable Document Format support.
Top Negative Comment
wouf336
Dec 9, 2024
2
Really bad UI and UX, no cloud save, no collaboration tools, use this of you wanna flashback to early 2010s
social-remodeler
Positive commentOct 2, 2024
1
LibreOffice is free and open source and also brings in free document types which are not restricted by Microsoft.

Libreoffice lacks in some point of support Microsoft only document styles but you can create fully functional documents shareable with any Microsoft office Suit.
3 of 58 comments
LibreOffice is Free and Open SourceMicrosoft 365 Copilot is Freemium and Proprietary
LibreOffice is Customizable, Privacy focused and LightweightMicrosoft 365 Copilot is not according to our users
ONLYOFFICE
696 likes
Open-source office suite offering document, spreadsheet, and presentation editing with co-editing modes, plugin support, integration across 30+ services, robust security, and mobile access. Available in Community, Enterprise, and Home Server editions for versatile deployment.
85 ONLYOFFICE alternatives
Cost / License
Free
Open Source (AGPL-3.0)
Application types
Word Processor
Spreadsheet
Origin
Latvia
EU
Platforms
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
HUAWEI AppGallery
iPad
Self-Hosted
AppImageHub
Snapcraft
Flathub
Samsung Galaxy Store
Software as a Service (SaaS)
Flatpak
Cloudron
+9
Is ONLYOFFICE a good alternative to Microsoft 365 Copilot?

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22comments
ONLYOFFICE vs Microsoft 365 Copilot Comments

Top Positive Comment
Jatan Mehta
Jan 4, 2019
11
Doesn't mess up formatting like LibreOffice does.
social-remodeler
Positive commentOct 2, 2024
0
It is not proprietary software.
nguyenkhoi-luong-56
Positive commentJun 27, 2024
1
It's free and open source software. Compatible with most Microsoft Office documents. Doesn't track you at all.
3 of 22 comments
ONLYOFFICE is Free and Open SourceMicrosoft 365 Copilot is Freemium and Proprietary
ONLYOFFICE is Privacy focusedMicrosoft 365 Copilot is not according to our users
Apache OpenOffice
819 likes
Apache OpenOffice is a leading open-source office suite that offers free applications for word processing, spreadsheet, presentations, graphics, databases and more. All data is stored in an open standard format, though Open Office can also read and write files from other common...
68 Apache OpenOffice alternatives
Cost / License
Free
Open Source (Apache-2.0)
Application types
Word Processor
Spreadsheet
Origin
United States
Alerts
Discontinued
Platforms
Mac
Windows
Linux
BSD
PortableApps.com
+1
Is Apache OpenOffice a good alternative to Microsoft 365 Copilot?

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6comments
Apache OpenOffice vs Microsoft 365 Copilot Comments

Top Positive Comment
Guest
Nov 12, 2017
11
Free, no ads like many other "free" programs, and open source.
Review by a new / low-activity user.
Top Negative Comment
bchpls
Nov 11, 2022
9
Don't use it! Apache OpenOffice is a dead project. For many years there's been no real serious updates to the project.
KuboFHromoslav
Negative commentMay 17, 2025
1
OpenOffice was a great alternative when it was in really active development. But for more than a decade it stands on the same place without meaningful movement and it is very unfortunate. Rather use LibreOffice, which stands on the great legacy of OpenOffice but is in active development.
3 of 6 comments
Apache OpenOffice is Free and Open SourceMicrosoft 365 Copilot is Freemium and Proprietary
Ad
ONLYOFFICE
Open-source office suite offering document, spreadsheet, and presentation editing with co-editing modes, plugin support, integration across 30+ services, robust security, and mobile access. Available in Community, Enterprise, and...

https://www.onlyoffice.com
Learn More
Calligra Suite
104 likes
Calligra Suite is an office and graphic art suite by KDE. It contains applications for word processing, spreadsheets, presentation, vector graphics, and editing databases.
54 Calligra Suite alternatives
Cost / License
Free
Open Source (GPL-2.0)
Application types
Word Processor
Spreadsheet
Origin
Germany
EU
Platforms
Linux
KDE Plasma
FreeBSD
Flathub
Flatpak
+4
Is Calligra Suite a good alternative to Microsoft 365 Copilot?

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1comment
Calligra Suite vs Microsoft 365 Copilot Comments

Shaz Shah
CommentJul 28, 2025
0
Calligra Suite's interface kinda resembles iWork (is it still called that?), which would come as a shock to those coming from Office. Unfortunately, I didn't have a stable experience using it on my device running Zorin OS. It also lacks collaborative features.
Calligra Suite is Free and Open SourceMicrosoft 365 Copilot is Freemium and Proprietary
Calligra Suite is Privacy focused and LightweightMicrosoft 365 Copilot is not according to our users
NeoOffice
47 likes
NeoOffice is an office suite for Mac that is based on OpenOffice and LibreOffice. With NeoOffice, you can view, edit, and save OpenOffice documents, LibreOffice documents, and simple Microsoft Word, Excel, and PowerPoint documents.
Cost / License
Free
Open Source
Application types
Word Processor
Spreadsheet
Origin
United States
Alerts
Discontinued
Platforms
Mac
+1
Is NeoOffice a good alternative to Microsoft 365 Copilot?

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1comment
NeoOffice vs Microsoft 365 Copilot Comments

maurosoft391
Negative commentFeb 27, 2023
1
not compatble with windows and linux
NeoOffice is Free and Open SourceMicrosoft 365 Copilot is Freemium and Proprietary

5 of 5 Microsoft 365 Copilot alternatives

Open Source Microsoft 365 Copilot Alternatives Filtered by 'Presentation'

Alternatives list

LibreOffice

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LibreOffice vs Microsoft 365 Copilot Comments

ONLYOFFICE

Cost / License

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ONLYOFFICE vs Microsoft 365 Copilot Comments

Apache OpenOffice

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Apache OpenOffice vs Microsoft 365 Copilot Comments

Calligra Suite

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Calligra Suite vs Microsoft 365 Copilot Comments

NeoOffice

Cost / License

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NeoOffice vs Microsoft 365 Copilot Comments