Nmap
Discover hosts and map networks with Nmap, a network exploration and security scanning tool.
About Nmap
Nmap is a network discovery and security auditing utility that maps networks and identifies hosts. It determines which hosts are available, what services and application versions they offer, what operating systems they run, and what packet filters or firewalls are in use.
It handles large networks and also works against single hosts. The suite includes Zenmap for viewing results, Ncat for data transfer, Ndiff for comparing scans, and Nping for packet generation and response analysis. Official binary packages are available for Linux, Windows, and Mac OS X.
Key features
- Find available hosts on a network
- Scan TCP and UDP ports
- Identify services by application name and version
- Detect operating systems and OS versions
- Identify packet filters and firewalls in use
- Compare scan results with Ndiff
Best for: Systems and network administrators who need network inventory, service upgrade planning, and host or service uptime monitoring.
Good for
- Official binary packages are available for Linux, Windows, and Mac OS X
- Works against both large networks and single hosts
- Suite includes Zenmap, Ncat, Ndiff, and Nping for related tasks
Nmap at a glance
- Website
- nmap.org
- Category
- Privacy & Security › Security Tools
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Linux, Web, Windows
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Security Tools
Nmap alternatives
Tools and sites you could use instead, ranked by how closely they match.
Ndiff compares Nmap scan results from two XML files, showing changes such as hosts and ports appearing or disappearing.
Kismet monitors and captures Wi-Fi network traffic, with wireless intrusion detection and wardriving features.
DNSDumpster searches domain records and related hosts for domain research and reconnaissance.
Whatsupcams lists live webcams from locations including Slovenia, Italy, and Croatia, and invites visitors to host a camera.
Zeek analyzes network activity through an open source monitor with a flexible scripting language.
Explore ntop’s network visibility and cybersecurity offering; the supplied page gives little further detail.
Popular in Security Tools
Well-known listings from the same topic.
Online Password Hash Crackonlinehashcrack.comOTP Authapps.apple.com/app/otp-auth/id659877384MD5 reverse lookupmd5.gromweb.comMozilla SSLssl-config.mozilla.orgchallenges.rechallenges.reGoPlus Locker V3gopluslabs.io
Nmap FAQ
What operating systems does Nmap run on?
It runs on all major computer operating systems, with official binary packages available for Linux, Windows, and Mac OS X.
What information can Nmap determine about a network?
Which hosts are available, what services and application versions they offer, what operating systems they run, and what packet filters or firewalls are in use.
What additional tools are included with Nmap?
Zenmap for viewing results, Ncat for data transfer and redirection, Ndiff for comparing scan results, and Nping for packet generation and response analysis.
Is something wrong or out of date?
Tell us and an editor will check it.
Own this website?
Claim this listing
Claim the listing and suggest updates yourself. An editor checks every claim first.