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