Tunnelblick

Tunnelblick is a free, open-source graphical user interface for OpenVPN on macOS. It provides a convenient way to configure and manage OpenVPN connections through a macOS-native application, including a status menu, a configuration editor, and automatic updates. The project is intended for users who need secure remote access via OpenVPN without manually invoking command-line tools.

Tunnelblick operates by importing OpenVPN configuration profiles, typically .ovpn files. Users can import, organize, and connect to VPNs; the application creates VPN tunnels, manages per-connection options, and displays detailed connection logs. It can store credentials securely in the macOS Keychain and supports starting connections automatically at login.

The software is released under the GNU General Public License and is maintained by volunteers and community contributors. Its development emphasizes compatibility with current macOS versions and adherence to OpenVPN standards, while providing a user-friendly interface for managing multiple profiles.

Platform and distribution: Tunnelblick runs on macOS and is distributed as a standalone application package. It is commonly installed via the official website or trusted mirrors, with updates issued to improve compatibility, stability, and security.

See also: OpenVPN, VPN client, macOS networking, list of open-source VPN software.