Nextcloud
Self-hosted collaboration: files, Talk, Calendar, and a large app ecosystem.
Why it is included
Dominant FOSS collaboration stack in self-hosting with frequent security hardening.
Best for
SMBs, schools, and privacy-focused orgs needing Dropbox-like sharing.
If you use Windows, Mac, or paid tools
Cloud files alternative to Dropbox, Google Drive, iCloud Drive, and OneDrive when self-hosted.
Strengths
- Sharing UX
- Integrations
- Marketplace apps
Limitations
- Requires competent admin for updates and hardening
Good alternatives
Seafile · ownCloud
Related tools
File Sync & Storage
Syncthing
Continuous folder sync across devices without a mandatory central cloud.
File Sync & Storage
Seafile
Self-hosted file sync and sharing with libraries, encryption, and online preview.
File Sync & Storage
MinIO
S3-compatible object storage for cloud-native and on-prem data lakes.
File Sync & Storage
Filestash
Web file manager bridging FTP, SFTP, S3, WebDAV, Git, and more.
File Sync & Storage
ownCloud
Self-hosted sync and share platform (Nextcloud lineage sibling).
Office & Productivity
Collabora Online
LibreOffice technology in the browser for collaborative editing with self-host and integration options.