head to head · open source
Nextcloud vs Sync-in
Nextcloud has 37,396 GitHub stars, 5,334 forks, 3,657 open issues and last shipped yesterday. Sync-in has 1,951 stars, 160 forks, 13 open issues and last shipped 2 days ago. Nextcloud leads on adoption by 1,817% (37,396 vs 1,951 stars). Nextcloud is written in PHP under AGPL-3.0; Sync-in is written in TypeScript under AGPL-3.0. Nextcloud has attracted 14% as many forks as stars, Sync-in 8%. Nextcloud was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (collaboration, file-sharing, nextcloud), 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
| Nextcloud | Sync-in | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 2.0K |
| License | AGPL-3.0 | AGPL-3.0 |
| Written in | PHP | TypeScript |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 5.3K | ⑂ 160 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Nextcloud if
- You weight community size — 37K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches PHP
- 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 Nextcloud
Nextcloud Server ☁ A safe home for all your data. Why is this so awesome? 🤩 📁 Access your Data You can store your files, contacts, calendars, and more on a server of your choosing. 🔄 Sync your Data You keep your files, contacts, calendars, and more synchronized amongst your devices. 🙌 Share your Data …by giving others access to the stuff you want them to see or to collaborate with. 🚀 Expandable with hundreds of Apps ...like Calendar, Contacts, Mail, Video Chat and all those you can discover in our App Store 🔒 Security with our encryption mechanisms, HackerOne bounty program and two factor authentication…
read the full Nextcloud overview →
About Sync-in
Website • Documentation • Demo • Docker setup • NPM setup • GitHub Server • GitHub Desktop & CLI Sync in is a self hosted platform for file storage, synchronization, and team collaboration. Run your own workspace for files, documents, shares, and collaborative work without giving up control of your infrastructure or data. Sync in is designed to stay fast, lightweight, and centered on your data, keeping files readable on your filesystem while adding collaboration features only where they are needed. Features 🖥️ Modern web interface with drag and drop, smart clipboard, gallery view, sorting, filtering, and…
read the full Sync-in overview →
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Frequently asked questions
Is Nextcloud or Sync-in more popular?
Nextcloud has 37,396 GitHub stars and Sync-in has 1,951. Nextcloud has the larger community by that measure.
Are Nextcloud and Sync-in free?
Both are open source. Nextcloud is licensed under AGPL-3.0 and Sync-in under AGPL-3.0. Neither carries a licence fee.
What is the difference between Nextcloud and Sync-in?
Nextcloud is written in PHP 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, Nextcloud or Sync-in?
Choose Nextcloud if you want the larger community (37,396 stars) or its AGPL-3.0 licence terms. Choose Sync-in if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.