Project Summary
Unison is a file-synchronization tool for Unix and Windows, written in OCaml. It allows two replicas of a collection of files and directories to be stored on different hosts, modified separately, and then brought up to date by propagating the changes in each replica to the other.
Unison offers several advantages over various synchronization methods such as CVS, Coda, rsync, Intellisync, etc. Unison can run on and synchronize between Windows and many UNIX platforms. Unison can synchronize changes to files and directories in both directions, on the same machine, or across a network using ssh or a direct socket connection.
In a Nutshell, Unison...
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has a well established, mature codebase
maintained by a small development team
with stable Y-O-Y commits -
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took an estimated 12 years of effort (COCOMO model)
starting with its first commit in February, 2005
ending with its most recent commit 11 days ago
Quick Reference
GNU General Public License v2.0 or later
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Forbidden
Sub-License
Hold Liable
Required
Distribute Original
Disclose Source
Include Copyright
State Changes
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
This Project has No vulnerabilities Reported Against it
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30 Day SummaryNov 12 2025 — Dec 12 2025
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12 Month SummaryDec 12 2024 — Dec 12 2025
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