Seafile vs Proton Drive
Both are alternatives to Dropbox. Here's how they stack up — verified facts, no spin.
Also searched as Proton Drive vs Seafile — same comparison, one verdict.
Seafile is open source (AGPL-3.0) and Proton Drive is not (Proprietary hosted service (client apps open-source, audited)) — so the real question is whether you want to own the cloud storage & sync stack or rent it.
Seafile
Fast, reliable self-hosted file sync and share.
Seafile is an open-source file-sync-and-share platform known for fast, reliable syncing and client-side encryption options. Its Community Edition is self-hostable and a strong choice when raw sync performance matters.
Proton Drive
End-to-end encrypted cloud storage from the Proton privacy suite.
Proton Drive is hosted, end-to-end encrypted cloud storage and file sync from the Swiss privacy company Proton. Like the rest of Proton, its apps are open-source and audited, but the service is hosted on Proton's servers — not self-hostable. It's the easy private-cloud option for people who won't run Nextcloud or Syncthing themselves.
Side by side
10 points of comparison, every one read from a verified field. Green marks the side that wins a row outright. A dash means we do not hold that fact — never that it is zero.
| Seafile | Proton Drive | |
|---|---|---|
| Sovereignty ScoreOur transparent 0–100 composite for data ownership and exit cost. | 86 | 60 |
| Open source | Yes | No |
| Self-hostable | Yes | No |
| Local-first data | No | No |
| License | AGPL-3.0 | Proprietary hosted service (client apps open-source, audited) |
| Pricing | Free self-host (Community Edition); paid Pro tier | Free tier (a few GB); paid from about $4/month (or bundled in Proton Unlimited) |
| RAM to run it wellThe figure that actually matters, not the vendor's minimum. | 4 GB | — |
| Realistic running costWhat the box costs each month if you run it yourself. | $18–30/mo, against Dropbox Business per-seat pricing | — |
| Setup timeHonest first-install estimate, not the marketing quickstart. | 2 hours | — |
| Ongoing maintenanceThe part nobody budgets for. | Moderate. Its garbage collector must be run periodically or deleted data never actually frees space. | — |
Seafile edges it on the Sovereignty Score, but the right pick depends on the trade-offs below.
Weighing both against staying on Dropbox? Is Dropbox free? What it actually costs →
Seafile
Strengths
- +Fast, reliable sync engine
- +Client-side encryption option
- +Mature clients
Trade-offs
- −Some features are Pro-only
- −Smaller app ecosystem than Nextcloud
Proton Drive
Strengths
- +End-to-end encrypted — Proton cannot read your files
- +Open-source, independently audited client apps
- +Zero setup — nothing to host or maintain
- +Swiss privacy jurisdiction
Trade-offs
- −Hosted on Proton's servers — not self-hostable
- −The service is proprietary; only the client apps are open
- −Files live in Proton's cloud, not on your own hardware
- −Less storage per dollar than raw self-hosting
Which one fits you
The trade-offs above, turned into a decision. Find the line that describes your team.
Choose Seafile
if you want the source and the option to fork it, and you would rather run it on your own hardware, and fast, reliable sync engine.
Choose Proton Drive
if end-to-end encrypted — Proton cannot read your files.
Neither, yet
if both carry a real cost you should weigh first — some features are Pro-only, and hosted on Proton's servers — not self-hostable. If either of those is a dealbreaker for your team, the shortlist is wrong rather than the choice.
What it takes to run these yourself
Real requirements and honest running costs, not the vendor quickstart.
Seafile vs Proton Drive — common questions
Is Seafile a better fit than Proton Drive for cloud storage & sync?
It depends on what you are optimising for, and the honest split is this: Seafile scores 86 to Proton Drive's 60 on data ownership and exit cost, so it is the safer choice if you care about being able to leave. Proton Drive earns its place on a different axis — end-to-end encrypted — Proton cannot read your files. Neither is a wrong answer for every team; the table above is the actual comparison.
What happens if we want to switch later?
Neither of these is local-first by default, so plan the exit at the point you adopt rather than later. Export what matters on a schedule instead of trusting you can retrieve it on demand — that is the most common way a cloud storage & sync migration turns into a project instead of an afternoon.
Can I self-host Seafile?
Seafile can be self-hosted; Proton Drive cannot, so it stays on the vendor's infrastructure whatever you do.
Are Seafile and Proton Drive both alternatives to Dropbox?
Yes — both appear in our Dropbox comparison, which is why they are worth putting side by side. People usually arrive here already having decided to move off Dropbox and now choosing between the two replacements, which is a narrower and much easier question.
More Dropbox head-to-heads
More cloud storage & sync comparisons
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Facts verified 2026-07-18. Licenses and pricing change — spotted something out of date? That's a correction we want.