Best / Office suites
Best open-source Office suites
The best self-hosted office split in the c17.io catalog is ONLYOFFICE Docs for an AGPL-3.0 OOXML suite (the published Word/Excel/PowerPoint/Slides stack), Collabora Online for the MPL LibreOffice-based editor Nextcloud Office can wrap, CryptPad when the job is an AGPL-3.0 end-to-end-encrypted pad, and Nextcloud when you want the Drive-shaped suite around those editors. A live sheet with relations stays on /replace/google-sheets (Grist). This is not Microsoft 365 Copilot or Google Slides' add-on store.
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Ranked picks
1
ONLYOFFICE DocsAGPL-3.0 document server for .docx/.xlsx/.pptx — the c17 Word/Excel/PowerPoint/Slides path.
When to pick it: An OOXML suite you host.
7,037 stars in the catalog
2
Collabora OnlineMPL LibreOffice-based editor already named on /replace/google-docs. Nextcloud Office can wrap it — /compare/onlyoffice-vs-collabora.
When to pick it: The Nextcloud Office wrap if ONLYOFFICE is not the shape.
3
CryptPadAGPL-3.0 end-to-end-encrypted collaborative pads — /compare/onlyoffice-vs-cryptpad.
When to pick it: Encrypted pads, not an OOXML suite.
8,022 stars in the catalog
4
NextcloudAGPL-3.0 Drive-shaped suite that can wrap these editors — /replace/google-drive.
When to pick it: Files plus Office, not the editor alone.
37,171 stars in the catalog
How they compare
| Tool | License | Self-host | Best for |
|---|---|---|---|
| ONLYOFFICE Docs | GNU Affero General Public License v3.0 | Medium | An OOXML suite you host. |
| Collabora Online | Not listed | Medium | The Nextcloud Office wrap if ONLYOFFICE is not the shape. |
| CryptPad | GNU Affero General Public License v3.0 | Medium | Encrypted pads, not an OOXML suite. |
| Nextcloud | GNU Affero General Public License v3.0 | Medium | Files plus Office, not the editor alone. |
Related pages
- ONLYOFFICE / Collabora stack
- Nextcloud / Seafile stack
- Grist stack
- Replace Google Slides
- Replace PowerPoint
- Replace Microsoft Excel
- Replace Microsoft Word
- Replace Google Drive
- Replace OneDrive
- Replace Box
- Replace Google Docs
- Replace iCloud
- Replace Google Sheets
- ONLYOFFICE Docs vs Collabora Online
- ONLYOFFICE Docs vs CryptPad
- CryptPad vs Collabora Online
- All best open-source pages
- All compare pages
- All replace pages
- All stacks
- Tools catalog
FAQ
- ONLYOFFICE or Collabora?
- ONLYOFFICE if you want the AGPL OOXML suite (the published stack). Collabora if you want the MPL LibreOffice-based editor — /compare/onlyoffice-vs-collabora.
- Is this Google Sheets?
- A .xlsx file, yes. A live multiplayer sheet with relations is Grist — /replace/google-sheets.
- Why not just Nextcloud?
- Nextcloud is the Drive suite — /replace/google-drive. This page is the editor. Pair them if you want both.
- Are these free?
- ONLYOFFICE Docs and CryptPad are AGPL-3.0. Collabora Online is MPL as already named on /replace/google-docs. Nextcloud is AGPL-3.0. You pay hosting. Template users never pay c17.
- How do I deploy it?
- Open /stacks/onlyoffice-collabora. Persist documents. Open one .docx/.xlsx/.pptx you actually have.
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