head to head · open source
Seafile vs Cozy
Seafile has 15,414 GitHub stars, 1,674 forks, 94 open issues and last shipped 18 days ago. Cozy has 1,268 stars, 147 forks, 56 open issues and last shipped yesterday. Seafile leads on adoption by 1,116% (15,414 vs 1,268 stars). Seafile is written in C under a custom or non-standard licence; Cozy is written in Go under AGPL-3.0. Seafile has attracted 11% as many forks as stars, Cozy 12%. Cozy was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Seafile | Cozy | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 1.3K |
| License | Custom / other | AGPL-3.0 |
| Written in | C | Go |
| Last push | 2026-10-16 | 2026-11-02 |
| Forks | ⑂ 1.7K | ⑂ 147 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Seafile if
- You weight community size — 15K stars and counting
- You want the Custom / other license terms
- Your stack matches C
- You value the larger contributor base for long-term maintenance
pick Cozy if
- You want the Cozy feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Go
- You evaluated both and Cozy fits your workflow better
About Seafile
Introduction Seafile is an open source cloud storage system with privacy protection and teamwork features. Collections of files are called libraries. Each library can be synced separately. A library can also be encrypted with a user chosen password. Seafile also allows users to create groups and easily sharing files into groups. Beyond sync and share, Seafile provides advanced metadata management features and handy collaboration features. Feature Summary Seafile has the following features: File syncing 1. Selective sync for any folder. 2. Correctly handles file conflicts based on history instead of timestamp. 3…
read the full Seafile overview →
About Cozy
Twake Workplace ========== What is Cozy? Cozy is a platform that brings all your web services in the same private space. With it, your web apps and your devices can share data easily, providing you with a new experience. You can install Cozy on your own hardware where no one profiles you. What is the Cozy Stack It is the core server of the Cozy platform. It consists of a single process, the Cozy stack . Full Cozy Stack documentation here. The Cozy Stack is in charge of serving the Web applications users have installed from the application store. It provides its services through a REST API that allows to: create…
More in Productivity & Utilities
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Frequently asked questions
Is Seafile or Cozy more popular?
Seafile has 15,414 GitHub stars and Cozy has 1,268. Seafile has the larger community by that measure.
Are Seafile and Cozy free?
Both are open source. Seafile has no licence declared in this registry, and Cozy is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Seafile and Cozy?
Seafile is written in C and Cozy in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Seafile or Cozy?
Choose Seafile if you want the larger community (15,414 stars) or its Custom / other licence terms. Choose Cozy if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.