Seafile

What is Seafile?

Seafile is an open source file sync and share platform that you host on your own server. It organizes files into “libraries” that sync independently across desktop and mobile clients, and it can encrypt any library with a password that never leaves your device — a private alternative to Dropbox and Google Drive.

What is Seafile best for?

Teams and individuals who want fast, reliable file sync and sharing on infrastructure they control — especially where privacy or client-side encryption matters. Its library model and block-level sync make it a strong fit for keeping large amounts of data current across many devices without handing it to a public cloud.

What can Seafile do?

• Sync files into independent libraries with selective sync and reliable conflict handling
• Encrypt libraries client-side with AES, so the server never sees your password or plaintext
• Keep file version history and snapshots, with recovery of deleted files and folders
• Share via password-protected links with expiry dates and read/write, read-only, or preview permissions
• Access files from Windows, macOS, and Linux desktop clients, iOS and Android apps, a virtual drive client, and the web
• Co-edit documents with SeaDoc, build team wikis, and organize files with tags, custom properties, and table, kanban, or gallery views
• Store data on the local filesystem, or on S3-compatible and distributed backends in the Pro edition

Is Seafile free?

Partly. The Community Edition is free and open source (server core under AGPLv3) with no user limit. The Professional Edition adds full-text search, online Office editing, file locking, audit logs, and SSO — it’s free for up to 3 users, then priced per user per year (around $48/user/year for teams, with education discounts).

Where does Seafile fall short?

• Several collaboration and admin features are Pro-only and proprietary: full-text search, online Office document editing, file locking, audit logs, SSO/SAML, and S3/distributed storage all live in the paid Professional Edition, which is free only up to 3 users.
• It’s narrower than Nextcloud by design. Seafile focuses on doing file sync and share fast and well, so it doesn’t bundle the calendar, contacts, mail, and groupware apps that an all-in-one suite ships.
• Encrypted libraries trade features for privacy: because encryption is client-side, the server can’t index those files for search or render online previews, and there is no way to recover a lost library password.

What does Seafile replace?

Seafile is a self-hosted alternative to Dropbox and Google Drive — the same sync-and-share experience, but the files live on your server. It’s also comparable to open source tools like Nextcloud and Pydio Cells, with a sharper focus on sync speed and library encryption than an all-in-one collaboration suite.

FAQ

Is Seafile open source? The core is. The Seafile Server core (AGPLv3), the Seahub web UI (Apache 2.0), and the desktop sync client (GPLv2) are all open source in the Community Edition. The Professional Edition is proprietary and layers extra features on top.

Can I self-host Seafile for free? Yes. The Community Edition is free to self-host with no user cap, and the Professional Edition is free for up to 3 users. You only pay once a larger team needs Pro features.

Is Seafile a good Dropbox alternative? For teams that want private, self-hosted file sync with client-side encryption, yes. If you need a broad collaboration suite with calendar and mail built in, Nextcloud may fit better; for pure sync speed, Seafile is fast and lean.

What do I need to run Seafile? A Linux server (deployed via Docker) with a MySQL or MariaDB database — SQLite support was dropped in version 11, and the Windows server build was discontinued after version 6.0.7.