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File Sync & Storage comparison

Nextcloud vs Seafile: which should you self-host in 2026?

Pick Nextcloud for a broad collaboration suite with calendars, chat and apps; pick Seafile for fast, reliable file sync of large libraries with lower overhead.

Both are open source and run on your own server. Below: a side-by-side of license, stack and features, live GitHub activity, and our verdict on who should pick which.

Nextcloud

nextcloud/server

37k GitHub starsLast commit Oct 6, 2026

Access and share your files, calendars, contacts, mail and more from any device, on your terms.

  • AGPL-3.0
  • PHP
  • Actively maintained
Nextcloud detailsDeploy guide

Seafile

haiwen/seafile

15k GitHub starsLast commit Sep 18, 2026

File hosting and sharing solution primary for teams and organizations.

  • GPL-2.0
  • C
  • Actively maintained
Seafile details

Head-to-head

Nextcloud vs Seafile, side by side

Hand-checked differences first, then live numbers from GitHub, refreshed with every catalog update.

Nextcloud compared with Seafile
AspectNextcloudSeafile
LicenseAGPL-3.0.Server core AGPL-3.0, Seahub web UI Apache-2.0, desktop client GPL-2.0; a proprietary Pro edition also exists.
Language/stackPHP.C server core with a Python (Django) web interface.
Storage modelFiles are stored as regular files on disk or object storage.Files are split into blocks in Seafile's own storage format, enabling deduplication and delta sync.
ScopeFiles plus Calendar, Contacts, Talk, Office and an app store.File sync and sharing, with libraries, versioning and online editing via integrations.
Mobile appsOfficial iOS and Android apps.Official iOS and Android apps.
GitHub stars37,00315,307
Commits, last 12 months7,28939
Last commitOct 6, 2026Sep 18, 2026
Latest releasev35.0.1Sep 24, 2026v9.0.5Feb 27, 2024
Main languagePHPC
Official Docker imageNoNo
Repositorynextcloud/serverhaiwen/seafile

Swipe the table sideways to see both apps. GitHub figures come from the public API. Highlighted values are the higher of the two.

Verdict

Nextcloud is the better fit if you want one platform for files, calendars, contacts, video calls and office documents. Seafile does less but is known for fast and efficient sync, versioning and block-level deduplication, so it suits teams whose main job is syncing large file libraries.

Best for

Choose Nextcloud for

An all-in-one collaboration platform.

Best for

Choose Seafile for

Fast, efficient sync of large file libraries.

Deploy either in minutes

Not sure yet? Spin up a small VPS or a managed instance, try both for a week, and keep the one that fits.

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FAQ

Nextcloud vs Seafile: FAQ

Still curious? Email info@appsgit.com.

Is Seafile faster than Nextcloud?

Seafile is widely regarded as faster for syncing large numbers of files because of its block-based storage and delta sync. Nextcloud trades some sync efficiency for a much wider feature set.

Can I browse Seafile files directly on the server disk?

Not directly. Seafile stores data in its own block format, so you access files through its clients, web UI, WebDAV or the FUSE extension rather than the raw folder.

Does Seafile have calendars and contacts?

No. Seafile focuses on files. If you need calendar and contacts sync, Nextcloud includes them.

Which is more popular on GitHub, Nextcloud or Seafile?

Nextcloud has 37,003 GitHub stars against 15,307 for Seafile. Over the last twelve months Nextcloud received 7,289 commits and Seafile received 39, so Nextcloud is the more actively developed of the two right now. Stars measure interest, not fit, so weigh them against the differences above.

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