Kubo (IPFS) vs Unison
A side-by-side comparison of two self-hosted file sync & storage options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Kubo (IPFS) | Unison |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 95 · Excellent | 88 · Excellent |
| Category | File Sync & Storage | File Sync & Storage |
| License | MIT | GPL-3.0 |
| Language | Go | OCaml |
| Setup difficulty | Hard | Medium |
| Min. RAM | 512 MB | 64 MB |
| Deployment | docker, binary, snap | bare-metal, binary |
| GitHub stars | ★ 17,139 | ★ 5,493 |
| First released | 2015 | 1999 |
| Replaces | Dropbox | Dropbox |
What are Kubo (IPFS) and Unison?
Kubo (IPFS)
Kubo is the reference implementation of IPFS, a peer-to-peer hypermedia protocol for decentralized file storage and sharing. It enables content-addressed distribution of files across a global network.
- Content-addressed storage
- Decentralized peer-to-peer network
- HTTP gateway support
Unison
Unison is a mature bidirectional file synchronization tool that reconciles changes made independently on two replicas. It detects conflicts, preserves both versions, and works over SSH for secure remote syncing.
- True bidirectional sync
- Conflict detection
- Works over SSH
- Cross-platform replicas
Kubo (IPFS) vs Unison: key differences
Kubo (IPFS) is written in Go, while Unison is built with OCaml. Licensing differs — MIT for Kubo (IPFS) versus GPL-3.0 for Unison. Unison is the lighter option, starting around 64 MB of RAM against 512 MB for Kubo (IPFS). Unison is the more established project (first released 1999), while Kubo (IPFS) arrived in 2015. Kubo (IPFS) has the considerably larger community, at 17,139 GitHub stars versus 5,493. Kubo (IPFS) lists first-class Docker deployment; Unison does not.
Why pick each one
Choose Kubo (IPFS) if…
- Content-addressed storage
- Censorship resistant
- Reference IPFS implementation
Watch out for
- Heavy bandwidth chatter
- Content vanishes without pinning
- Concepts take learning
Choose Unison if…
- Very reliable
- Fine-grained control
Watch out for
- Dated GTK interface
- Version matching between hosts
Frequently asked questions
Is Kubo (IPFS) or Unison better?
Neither is universally better. Kubo (IPFS) has the larger community, while Unison is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Kubo (IPFS) and Unison free and open-source?
Yes. Kubo (IPFS) is licensed under MIT and Unison under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Kubo (IPFS) and Unison with Docker?
Kubo (IPFS): yes. Unison: check the project docs for container support.
Which is lighter on resources, Kubo (IPFS) or Unison?
Unison has the smaller minimum footprint at 64 MB of RAM, compared to about 512 MB for Kubo (IPFS). Real-world usage depends on library size, user count, and enabled features.