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Resilio Sync vs Seafile: catalog facts
Resilio Sync	Seafile
Free Free for personal use. Business editions are paid.	Freemium The community edition is free and open source. The Professional edition is paid.
Windows, macOS, Linux, Android, iOS	Windows, macOS, Linux, Android, iOS, Self-hosted
Files sync directly between your devices with no cloud storage involved Fast on a local network and works well with very large libraries	Block-level sync and deduplication make it fast with large libraries Per-library client-side encryption, and a drive client that streams on demand
Closed source, so the protocol and crypto cannot be audited Both devices must be online at the same time to sync	Some features are reserved for the paid Professional edition Self-hosting requires a database and careful upgrade handling
Downloadable app	Self-hosted, Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.