Quick Verdict

Overview

Feature Comparison

Installation Complexity

Community and Support

Use Cases

Choose Seafile If...

Choose Syncthing If...

Final Verdict

Can Syncthing work as a "server"?

Is Seafile faster than Syncthing?

Does Syncthing have an iOS app?

Can I encrypt files with Syncthing?

Related Syncthing if you only need device-to-device sync. Seafile if you need sharing links or a web file browser. Syncthing is simpler, lighter, and truly serverless — files sync directly between your devices. Seafile adds a central server with a web UI, sharing links, and multi-user support. Both excel at fast file sync; the choice depends on whether you need the server features. Syncthing is a decentralized, peer-to-peer file sync tool. Devices connect directly to each other — no central server. It does one thing: keep folders in sync across devices. It does this exceptionally well, with block-level delta sync and strong encryption. Seafile is a client-server file sync and share platform. It runs a central server that stores files, serves a web UI, and handles sharing. Desktop clients sync files to/from the server. Its custom block-level storage engine makes it the fastest server-based sync solution available. Syncthing is the simplest file sync tool you can self-host. One Docker container, one port, one volume. Install it on each device, pair via Device IDs, share folders. Done. See our Syncthing Docker guide. Seafile requires a server with its application, a MariaDB database, and Memcached. Three Docker services, multiple environment variables, domain configuration for external access. See our Seafile Docker guide. Winner: Syncthing, decisively. No server to maintain at all. Both are fast. Seafile's block-level engine is designed for high-throughput server-to-client sync. Syncthing's P2P approach eliminates the server bottleneck entirely — LAN sync goes at full network speed. Performance is comparable. Seafile may edge ahead for many-client scenarios (one server, many clients). Syncthing may edge ahead for two-device sync on a LAN. Different tools for different needs. If you just want files synced between your own devices — no sharing, no web access, no multi-user — Syncthing is perfect and dramatically simpler. If you need to share files with others, access files from a browser, manage multiple users, or want a central place for all your files — Seafile delivers that with excellent performance. Many self-hosters use both: Syncthing for fast device-to-device sync of working files, and Seafile for shared family storage with web access. Sort of. You can run Syncthing on an always-on machine that syncs with all your devices, effectively acting as a central hub. But it's still P2P — there's no web UI for browsing, no sharing links, no user management. They're comparable. Seafile's server architecture can be faster for one-to-many sync (one server, many clients). Syncthing is faster for two-device LAN sync since traffic goes direct without a server hop. No official iOS app exists. Third-party apps like Möbius Sync are available but paid and less reliable. If iOS support is critical, Seafile or Nextcloud are better choices. Syncthing encrypts all data in transit. For at-rest encryption on untrusted devices, Syncthing supports "Untrusted (Encrypted)" folder types — the remote device stores encrypted data it cannot read. Templates let you quickly answer FAQs or store snippets for re-use. as well , this person and/or - You need to share files with others via links

- You want a web file browser accessible from any device- You need multi-user support with permissions- You want client-side encrypted libraries for sensitive data- You want a central server that serves as the "source of truth"- You need collaborative document editing- You need iOS mobile app support - You only sync between your own devices- You don't need sharing links or a web file browser- You want zero server maintenance- You want no single point of failure- You value simplicity above all else- Maximum privacy matters — no data touches any server- You're on constrained hardware (Raspberry Pi, old laptop) - How to Self-Host Seafile- How to Self-Host Syncthing- Nextcloud vs Seafile- Nextcloud vs Syncthing- Self-Hosted Alternatives to Google Drive- Self-Hosted Alternatives to Dropbox- Best Self-Hosted File Sync Solutions- Docker Compose Basics