NmapSI4 Alternatives

Zenmap is the official cross-platform GUI for the Nmap Security Scanner.

Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.

DCIM software reinvented.

Try for free Open Source paid Free Trial $600.0 / Annually (300 Assets)

Open-source and cross-platform network scanner designed to be fast and simple to use

Open Source

Advanced IP Scanner shows all network devices, gives you access to shared folders, and can even remotely switch computers off. Download it Free.

Discover which devices are connected to any Wi-Fi network, map devices, detect intruders, assess...

LanSpy - Network security and port scanner - LanTricks - LizardSystems

Umit: The Nmap Frontend:

Nsauditor is a powerful network security auditing software. Includes 45 tools for network security scanning, network security auditing, network security auditing checklist, network security auditing report, network monitoring tools.

Nessus Professional is a security platform designed for businesses who want to protect the security of themselves, their clients, and their customers.

ZMap is a fast single packet network scanner designed for Internet-wide network surveys.

Open Source

Ideagen's Internal Audit Software, Pentana is a complete risk-based audit automation solution which delivers performance, agility and real time insights into the organisation's risk profile.

Security of your Wi-Fi network for Windows, macOS and Linux

A handy systems and security-focused tool, Port Authority is a very fast Android port scanner.