Viscosity is a simple OpenVPN client that allows you to establish connections based on the configuration provided or enter data manually. Viscosity is a program that allows you to configure many connection features, is intuitive and fully integrates with the DNS system in macOS, so you can use your own name servers. When a connection is established, it shows traffic statistics and connection details.

The program allows you to use tokens (PKCS#11), multiple connections at once, OpenVPN-AS, proxy servers and of course supports IPv6. Viscosity stores passwords in the system's key bundle. You can use AppleScript scripts to control Viscosity, and you can also create packages to install on company computers.