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osync vs Lsyncd: catalog facts
osync	Lsyncd
Free Free and open source.	Free Free and open source.
Linux, Command line	Linux, Command line
Bidirectional sync on top of standard rsync Fault tolerance and POSIX ACL support	Near real-time mirroring triggered by filesystem events Uses standard rsync and SSH for transfers
Command-line only, configured through files Needs rsync and a Unix-like shell environment	One-way mirroring rather than two-way sync Command-line and config-file only, no GUI
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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