freefilesync

Install command: 
brew install --cask freefilesync

Name: FreeFileSync

Folder comparison and synchronization software

https://freefilesync.org/

Cask JSON API: /api/cask/freefilesync.json

Cask code: freefilesync.rb on GitHub

Current version: 14.4

Current version requires: macOS >= 10.11

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