tunnelblick

Install command:
brew install --cask tunnelblick

Name: Tunnelblick

Free and open-source OpenVPN client

https://www.tunnelblick.net/

/api/cask/tunnelblick.json (JSON API)

Cask code on GitHub

Current version: 3.8.5a,5671

For security reasons, tunnelblick must be installed to /Applications,
and will request to be moved at launch.

Analytics:

Installs (30 days)
tunnelblick 1,844
Installs (90 days)
tunnelblick 5,545
Installs (365 days)
tunnelblick 25,536
Fork me on GitHub