Nextcloud
File sync, calendar, contacts and office suite you run yourself. German vendor.
AGPL-3.0Network copyleft (AGPL)
SaaS: Yes, with conditionsClosed product: No
- GitHub stars
- 37.0k
- Deployment
- Docker, AIO, Helm
- Login/SSO
- OIDC, SAML, LDAP
Open-source alternatives to Microsoft 365
Microsoft 365 in the Docs & collaboration category. These are the open alternatives we recommend looking at.
CryptPad
Collaboration suite with documents, spreadsheets and forms, all end-to-end encrypted.
AGPL-3.0Network copyleft (AGPL)
SaaS: Yes, with conditionsClosed product: No
- GitHub stars
- 8k
- Deployment
- Docker
- Login/SSO
- OIDC
Collabora Online
Browser-based office suite built on LibreOffice, for documents, spreadsheets and presentations.
MPL-2.0Weak copyleft
SaaS: YesClosed product: Yes, with conditions
- GitHub stars
- 3.4k
- Deployment
- Docker
ONLYOFFICE Docs
Online office suite for documents, spreadsheets, presentations and PDF, compatible with Microsoft Office formats.
AGPL-3.0Network copyleft (AGPL)
SaaS: Yes, with conditionsClosed product: No
- GitHub stars
- 7k
- Deployment
- Docker
This is guidance, not legal advice (inte juridisk rådgivning). Check with a lawyer before deciding.
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