Dropbox

Dropbox pioneered cloud file sync, but its consumer-focused model and $15/user/month business pricing have pushed many organizations toward self-hosted file storage that gives them more control and better economics.

Nextcloud is the most comprehensive alternative — it provides file sync, calendar, contacts, video calls, document editing (with Collabora or OnlyOffice), and an app marketplace with hundreds of extensions. It's essentially a self-hosted Google Workspace. Seafile focuses purely on file sync and sharing with exceptional performance — it handles millions of files more efficiently than Nextcloud thanks to its custom storage engine. Syncthing takes a completely different approach: peer-to-peer file sync with no central server, meaning your files never touch a third-party machine.

For businesses, Nextcloud's breadth is the key differentiator — replacing Dropbox, Google Calendar, and Google Docs with a single self-hosted platform simplifies your tool stack and keeps all data on your infrastructure. For personal use or small teams focused on file sync, Syncthing's zero-cost, zero-server approach is compelling — it runs on your existing devices and syncs directly between them.

Storage economics also favor self-hosting. Dropbox Business costs $15/user/month for 3TB pooled storage. A 10TB NAS with Nextcloud installed costs $200-400 upfront plus electricity — paying for itself in 2-3 months compared to cloud storage pricing.