Tunnelblick is a free, open source graphic user interface for OpenVPN on OS X. It provides easy control of OpenVPN client and/or server connections.
It comes as a ready-to-use application with all necessary binaries and drivers (including OpenVPN, easy-rsa, and tun/tap drivers). No additional installation is necessary -- just add your configuration and encryption information.
To use Tunnelblick you need access to a VPN server -- your computer is one end of the tunnel and the VPN server is the other end. For more information, seeGetting VPN Service.
Support is provided by the Tunnelblick Discussion Group.
Version 3.4beta28:
- Includes OpenSSL library version 1.0.1h, which fixes several security vulnerabilities (see OpenSSL Security Advisory 05 Jun 2014).
- Includes (some) preparation for OS X 10.10 ('Yosemite').
- Fixes a problem that crashes Tunnelblick if the 'VPN Details…' window is displayed when there no configurations.
- Fixes a problem that caused a failure to update the connection status and statistics.
- Fixes problems flushing the DNS cache on OS X 10.5 and 10.10 ('Leopard' and 'Yosemite').
- Fixes problems resetting the primary interface.
- Fixes problems installing or deleting configurations that contain locked files or folders.
- Fixes problems that caused the notification window to fail to appear when the pointer hovers over the Tunnelblick icon on OS X 10.5 ('Leopard').
- Fixes a problem that caused delays and invalid Console log messages on OS X 10.9 and 10.10 ('Mavericks' and 'Yosemite').
- Fixes a problem when a .tblk contains an up.sh or down.sh script.
- Fixes several minor cosmetic problems, including the mislabeling of the 'Copy Diagnostic Info to Clipboard' button on OS X 10.4 and 10.5 ('Tiger' and 'Leopard').
OS X 10.4 or later
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