Port Authority Alternatives
Nmap ("Network Mapper") is a free and open source (license) utility for network exploration or security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or...
- - Nmap is the most popular Windows, Mac & Linux alternative to Port Authority.
- - Nmap is the most popular Open Source & free alternative to Port Authority.
Zenmap is the official cross-platform GUI for the Nmap Security Scanner. It is free and runs on Linux, Windows, Mac OS X, etc. Zenmap aims to make Nmap easy for beginners to use while providing advanced features for experienced Nmap users.
Fing helps you understand most of your home network. See all the devices connected to your Wi-Fi, run network scanners, monitor your Internet speed, know your security level, set automated vulnerability checks, and much more.
- - Fing is the most popular Android, iPhone, iPad & Android Tablet alternative to Port Authority.
Reliable and free network scanner to analyse LAN. The program shows all network devices, gives you access to shared folders, provides remote control of computers (via RDP and Radmin), and can even remotely switch computers off. It is easy to use and runs as a portable edition.
This fast, highly configurable IPv4/IPv6 scanner can streamline many of your network support procedures. Its well-designed interface, light weight and portability coupled with an extensive range of options and advanced features make SoftPerfect Network Scanner an invaluable...
- - SoftPerfect Network Scanner is the most popular commercial alternative to Port Authority.
SoftPerfect Network Scanner Features
Wireless Network Watcher is a small utility that scans your wireless network and displays the list of all computers and devices that are currently connected to your network.
NETworkManager is a powerful tool for managing networks and troubleshoot network problems! It includes a variety of tools such as an IP scanner, Port Scanner, Ping Monitor, WiFi analyzer, PuTTY/RemoteDesktop with tabs or an LLDP/CDP capture (and many more) in a unified user...
NETworkManager by BornToBeRoot Features
Free Network Diagnostic Tool. WinMTR is an equivalent of mtr for Windows.Discontinued
The program is no longer updated. Last version, 0.92, released in February 2011, can be still downloaded from the official website.
MASSCAN produces results similar to Nmap , the most famous port scanner. Internally, it operates more like scanrand, unicornscan, and ZMap, using asynchronous transmission. The major difference is that it's faster than these other scanners.