Alternatives

Open source alternatives to Dropbox

Dropbox covers file sync and sharing across devices and people. These open projects do the same job without the lock-in.

Why people switch: Storage is cheap; paying per seat to keep your own files is not.

Nextcloud
Files plus calendar, contacts, and office — a full suite.

AGPL-3.0self-hostable
Seafile
Focused purely on fast, reliable sync at scale.

GPL-2.0/AGPLself-hostable