Portmaster is described as 'Free and open-source tool that monitors all network activity, blocks unwanted connections, uses filter lists for ads and malware, enforces DNS-over-TLS, and sets custom app rules' and is a very popular Firewall in the security & privacy category. There are more than 25 alternatives to Portmaster for a variety of platforms, including Windows, Linux, Android, Mac and iPhone apps. The best Portmaster alternative is NextDNS, which is both free and Open Source. Other great apps like Portmaster are AdGuard, simplewall, Pi-hole and RethinkDNS.
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.
Comodo Firewall is a personal firewall, a genre of security software that secures PCs by policing Internet traffic on an app by app basis. The most prominent feature of a personal firewall is generating popup notifications when an unknown program attempts to access the Internet...
Monitors all network activity on Mac, blocks specific domains, websites, or entire apps, shows hostnames instead of IPs, supports DNS over HTTPS, provides traffic charts, uses fast system extension, developer-friendly, one-time purchase with no subscription required.
As soon as you’re connected to the Internet, your apps can send whatever they want to wherever they want, unnoticed by you, because all of this happens invisibly under the hood.
Gufw is an easy, intuitive way to manage your Linux firewall. It supports common tasks such as allowing or blocking pre-configured, common p2p, or individual ports port(s), and many others! Gufw is powered by Uncomplicated Firewall (ufw).
Firewalld provides a dynamically managed firewall with support for network/firewall zones that define the trust level of network connections or interfaces. It has support for IPv4, IPv6 firewall settings, ethernet bridges and IP sets.
The upribox Software turns your RaspberryPi into a privacy-enhancing Wireless router with adblocking, Tor, and a VPN server.
FireWally is a free firewall app for Mac, powered by Apple Intelligence and designed for anyone who wants to take full control of their online activity.
Receive notifications whenever a new program connects to the network, or when it's modified
Firewalla is a vital security addition to every home and small business with network and IoT devices.
All the functionalities of a modern Next-Gen firewall in few clicks: MultiWAN, Deep Packet Inspection, VPNs, Threat Protection.
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