freefilesync

Install command: 
brew install --cask freefilesync

Name: FreeFileSync

Folder comparison and synchronization software

https://freefilesync.org/

Development: Pull requests

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

Cask code: freefilesync.rb on GitHub

Current version: 14.7

Requirements: macOS >= 10.15

Analytics:

Installs (30 days)
freefilesync 225
Installs (90 days)
freefilesync 630
Installs (365 days)
freefilesync 1,216