head to head · open source
cyberduck vs Sync-in
cyberduck has 4,788 GitHub stars, 369 forks, 506 open issues and last shipped yesterday. Sync-in has 1,773 stars, 137 forks, 13 open issues and last shipped yesterday. cyberduck leads on adoption by 170% (4,788 vs 1,773 stars). cyberduck is written in Java under GPL-3.0; Sync-in is written in TypeScript under AGPL-3.0. cyberduck has attracted 8% as many forks as stars, Sync-in 8%. Sync-in was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (dropbox), so they are genuine substitutes rather than adjacent tools.
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
| cyberduck | Sync-in | |
|---|---|---|
| GitHub stars | ★ 4.8K | ★ 1.8K |
| License | GPL-3.0 | AGPL-3.0 |
| Written in | Java | TypeScript |
| Last push | 2026-09-19 | 2026-09-19 |
| Forks | ⑂ 369 | ⑂ 137 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick cyberduck if
- You weight community size — 4.8K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick Sync-in if
- You want the Sync-in feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and Sync-in fits your workflow better
About cyberduck
Cyberduck is a libre FTP, SFTP, WebDAV, Amazon S3, Backblaze B2, Microsoft Azure & OneDrive and OpenStack Swift file transfer client for macOS and Windows, released under the GNU General Public License version 3 and developed at the iterate ch/cyberduck repository.
read the full cyberduck overview →
About Sync-in
Sync in is a self hosted platform for file storage, synchronization, and team collaboration. It lives in the self hosted file management ecosystem, alongside homelab, on premise, and cloud alternative use cases. The project is written in TypeScript and licensed under AGPL 3.0.
read the full Sync-in overview →
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Frequently asked questions
Is cyberduck or Sync-in more popular?
cyberduck has 4,788 GitHub stars and Sync-in has 1,773. cyberduck has the larger community by that measure.
Are cyberduck and Sync-in free?
Both are open source. cyberduck is licensed under GPL-3.0 and Sync-in under AGPL-3.0. Neither carries a licence fee.
What is the difference between cyberduck and Sync-in?
cyberduck is written in Java and Sync-in in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, cyberduck or Sync-in?
Choose cyberduck if you want the larger community (4,788 stars) or its GPL-3.0 licence terms. Choose Sync-in if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.