The best Privacy Tool alternative to NetLimiter is Portmaster, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to NetLimiter and four of them are Privacy Tools so hopefully you can find a suitable replacement. Other interesting Privacy Tool alternatives to NetLimiter are Little Snitch, Minimal Firewall and Firewalla.
Free, open-source privacy suite monitoring all network activity, blocking unwanted connections, using trusted filter lists for ads and malware, enforcing DNS-over-TLS, providing custom app and global rules, and supporting advanced privacy management.
Firewall application for monitoring and controlling outbound network connections, notifying users of attempted access, supporting rule-based blocking, real-time alerts on suspicious activity, and preventing unauthorized data transmission on macOS systems.
Minimal Firewall is a portable Windows firewall frontend that alerts users to internet connections without requiring custom kernel modifications or disabling core isolation, striking a balance between TinyWall's security and SimpleWall's functionality.
Firewalla is a vital security addition to every home and small business with network and IoT devices.
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Portmaster does not provide a way to set bandwidth limits, so it is not similar enough to NetLimiter to be an alternative.