Nix is a powerful package manager for macOS, Linux and other Unix systems that makes package management reliable and reproducible. It provides atomic upgrades and rollbacks, side-by-side installation of multiple versions of a package, multi-user package management and easy setup...
Advanced Port Scanner is a fast and free software for port scanning. It will allow you to quickly find all open ports (TCP and UDP) and detect versions of programs running on them. The utility includes many features simplifying network management.


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The MacPorts Project is an opensource package management system that simplifies compiling, installing, upgrading, and removal of other open-source software on Mac OS X 10.4 Tiger and later, running on Intel or Apple Silicon.



Port Checker is a simple tool for checking open ports on your computer/device. Test port forwarding setup on your machine. Diagnose connection issue with the ports.
Cost / License
- Free
- Proprietary
Platforms
- Online

Collection of ports to MS-Windows of GNU and Unix software packages, which either don't have precompiled Windows binaries available, or whose existing ports are buggy or broken. All the ports are built using the MinGW development environment, with or without MSYS.
Cost / License
- Free
- Open Source
Platforms
- Windows
Find, open and kill ports in a couple of clicks. Works with Node, Python, Ruby, PHP, HTTP and pretty much any process listening on a TCP port.
Cost / License
- Free
- Proprietary
Platforms
- Mac


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NetworkLatencyView is a simple tool for Windows that listens to the TCP connections on your system and calculates the network latency (in milliseconds) for every new TCP connection detected on your system.
Cost / License
- Free
- Proprietary
Platforms
- Windows













