3 open source alternatives to Dropbox
File sync and sharing. Here are the open source projects real teams use instead — ranked by fit, with honest pros and cons for each.
What people don't love about Dropbox
- Expensive compared to self-hosted storage at scale.
- Desktop client resource usage.
- File history and version retention limits.
Current Dropbox pricing (for reference): Free 2 GB; Plus from $11.99/month for 2 TB.
Quick comparison
| Alternative | Best for | License | Self-host | Hosted cloud? |
|---|---|---|---|---|
|
Nextcloud Self-hosted Dropbox and Google Drive alternative — files, calendar, contacts, and more. |
Dropbox plus calendar, contacts, office and more — all self-hosted. | AGPL-3.0 | ★★★☆☆ | Yes |
|
Seafile File sync and share with block-level deduplication. |
Raw sync performance and dedup at scale. | AGPL-3.0 / Apache-2.0 (client) | ★★★☆☆ | Yes |
|
Syncthing Peer-to-peer file sync with no central server. |
Peer-to-peer sync with no server at all. | MPL-2.0 | ★☆☆☆☆ | Self-host only |
1. Nextcloud — Dropbox plus calendar, contacts, office and more — all self-hosted.
Self-hosted Dropbox and Google Drive alternative — files, calendar, contacts, and more.
Strengths
- Huge app ecosystem — Talk, Office, Mail, Deck.
- Strong privacy and encryption features.
- Works well on small home servers or enterprise deployments.
Weaknesses
- Performance depends heavily on setup (PHP + DB tuning).
- Many features come from third-party apps with variable quality.
- Mobile photo sync occasionally needs manual fixes.
Nextcloud homepage · Source on GitHub · Dropbox vs Nextcloud →
2. Seafile — Raw sync performance and dedup at scale.
File sync and share with block-level deduplication.
Strengths
- Very efficient sync engine (block dedup).
- Strong reliability on large file sets.
- Libraries model keeps things organized.
Weaknesses
- Community edition lacks some pro features.
- UI is functional but less polished than Nextcloud.
- Smaller app ecosystem.
3. Syncthing — Peer-to-peer sync with no server at all.
Peer-to-peer file sync with no central server.
Strengths
- True peer-to-peer, no vendor cloud.
- End-to-end encrypted between devices.
- Simple to install on any machine.
Weaknesses
- No shared team workflow — device-to-device.
- iOS support is limited to a third-party app.
- Requires all paired devices online for fastest sync.
Syncthing homepage · Source on GitHub · Dropbox vs Syncthing →
Not what you're looking for?
Browse other tools in File Storage & Sync, or check out open source projects by category on the full category index.
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