Command-line tool

masscan

brew/masscan

Checked 25 Oct 2026, 21:09 UTC · Listing refreshed from Homebrew, winget, npm, Scoop and cargo; npm packages checked against OSV.dev

TCP port scanner, scans entire Internet in under 5 minutes

Website Source

At a glance

Type

Command-line tool

Install on

macOS, Linux

Last checked

25 Oct 2026, 21:09 UTC

Install it

macOS

brew install masscan

Linux

brew install masscan

Scan an IP or network subnet for port 80

masscan ip_address -p 80

Scan a class B subnet for the top 100 ports at 100,000 packets per second

masscan 10.0.0.0/16 --top-ports 100 --rate 100000

Scan a class B subnet avoiding ranges from a specific exclude file

masscan 10.0.0.0/16 --top-ports 100 --excludefile path/to/file

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