Little Snitch 5.7.1
Little Snitch is a trustworthy and handy macOS application capable to monitor your network traffic and block various connections in order to protect your privacy.
Little Snitch is a trustworthy and handy macOS application capable to monitor your network traffic and block various connections in order to protect your privacy.
LuLu is the free, shared-source firewall for macOS. It's goal is simple; block any unknown outgoing connections, until approved by the user. While it was designed to generically detect malware by flagging unauthorized networking connections, LuLu can also be used to block OS components or 3rd-party applications from transmitting information to remote servers.
Radio Silence is an outbound application firewall that lets you block Internet access from individual apps.