Cost / License
- Free
- Open Source (MIT)
Platforms
- Self-Hosted
- Docker
- Windows
- Linux
- TrueNAS
- Unraid
- Synology C2
- Ubuntu Server

Free Port Scanner is described as 'Small, fast, easy-to-use and robust port scanner for the Win32 platform.You can scan ports on fast machines in a few seconds and can perform scan on predefined port ranges. This tool uses TCP packets to determine available hosts and open ports, service' and is an app in the network & admin category. There are more than 10 alternatives to Free Port Scanner for a variety of platforms, including Windows, Linux, Mac, Flathub and Unraid apps. The best Free Port Scanner alternative is Angry IP Scanner, which is both free and Open Source. Other great apps like Free Port Scanner are NetPeek, Advanced IP Scanner, Advanced Port Scanner and SoftPerfect Network Scanner.

Netactview is a graphical network connections viewer for Linux, similar in functionality with Netstat. It includes features like process information, host name retrieval, automatic refresh and sorting.

grIP is a console-based, multiplatorm TCP port scanner with support for IPv4 ranges as well as individual IPv6 IPs. It will shuffle the scan range and utilize a configurable number of sockets to scan it in parallel.
