Ceph vs Seafile
A side-by-side comparison of two self-hosted file sync & storage options — licensing, setup difficulty, resource needs, and what each one replaces.
Ceph
Distributed object, block, and file storage platform
VS
Seafile
High-performance file sync and share with block storage
| Feature | Ceph | Seafile |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 94 · Excellent | 76 · Good |
| Category | File Sync & Storage | File Sync & Storage |
| License | LGPL-2.1 | AGPL-3.0 |
| Language | C++ | C |
| Setup difficulty | Hard | Medium |
| Min. RAM | 4,096 MB | 512 MB |
| Deployment | docker, kubernetes, bare-metal | docker, bare-metal |
| GitHub stars | ★ 17,069 | ★ 15,273 |
| First released | 2006 | 2012 |
| Replaces | Amazon S3, Google Drive | Dropbox, Google Drive |
What are Ceph and Seafile?
Ceph
Ceph is a highly scalable distributed storage system that provides object, block, and file storage in a unified cluster. It is designed for fault tolerance with no single point of failure.
- Unified object, block, and file storage
- Self-healing and self-managing
- Massive scalability
Seafile
Seafile is a file sync and share platform built around a reliable, high-performance file storage engine. It is well suited for users and organizations that prioritize fast, reliable sync of large libraries. It is typically deployed via Docker Compose or on bare metal.
- Fast block-level sync engine
- Client-side encrypted libraries
- Reliable handling of large file sets
- Desktop, mobile and web clients
Ceph vs Seafile: key differences
Ceph is written in C++, while Seafile is built with C. Licensing differs — LGPL-2.1 for Ceph versus AGPL-3.0 for Seafile. Seafile is the lighter option, starting around 512 MB of RAM against 4,096 MB for Ceph. Ceph is the more established project (first released 2006), while Seafile arrived in 2012.
Why pick each one
Choose Ceph if…
- Object, block and file
- No single failure point
- Massive proven scalability
Watch out for
- Steep operational complexity
- Needs multiple nodes
- High hardware requirements
Choose Seafile if…
- Excellent sync performance
- Stable and battle-tested
- Good for large libraries
Watch out for
- Fewer collaboration features than Nextcloud
- Setup more involved than simple tools
Frequently asked questions
Is Ceph or Seafile better?
Neither is universally better. Ceph has the larger community, while Seafile is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Ceph and Seafile free and open-source?
Yes. Ceph is licensed under LGPL-2.1 and Seafile under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Ceph and Seafile with Docker?
Ceph: yes. Seafile: yes.
Which is lighter on resources, Ceph or Seafile?
Seafile has the smaller minimum footprint at 512 MB of RAM, compared to about 4,096 MB for Ceph. Real-world usage depends on library size, user count, and enabled features.