Smap

Passive Nmap-compatible port scanner powered by Shodan's API, no account required.

Desktopfree

Smap is a command-line network scanner that mimics Nmap's interface but sources open-port and vulnerability data passively from Shodan instead of actively probing targets. It suits security researchers and sysadmins who want fast, low-noise reconnaissance without an API key or making direct contact with scanned hosts.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of Smap - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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