Nmap
A network scanning tool that sends IP packets to discover hosts, open ports, running services, and operating systems for security auditing
It takes care to curate a safe software space. Help us do more.
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| + | Port Scanning | Probes target hosts with TCP and UDP techniques to determine which ports are open, closed, or filtered, giving administrators a clear picture of exposed network services. |
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| + | OS Detection | Analyzes variations in a target’s TCP/IP stack responses to identify its operating system and version, helping auditors understand what systems are present on a network. |
| + | Service and Version Detection | Interrogates open ports to determine the application name and version number of the service running there, allowing administrators to spot outdated or vulnerable software. |
| + | Nmap Scripting Engine | Runs a library of Lua scripts covering discovery, vulnerability checks, and advanced protocol probing, letting users automate reconnaissance tasks beyond basic scanning. |
| + | Zenmap GUI | Provides a graphical front end for building scan commands, viewing results, and comparing scans, so users who prefer not to use the command line can still drive full scans. |
| + | Ncat Utility | Bundles a redirection and data-transfer tool supporting SSL, proxies, and IPv6, enabling users to pipe data between hosts or test connections for debugging and automation. |
| + | Firewall/IDS Evasion | Offers packet fragmentation, decoy scanning, and spoofing options to test how firewalls and intrusion-detection systems react to disguised traffic, helping teams validate their defenses. |
| + | IPv6 Scanning | Extends most scanning and detection techniques to IPv6 targets, allowing administrators to audit dual-stack networks alongside legacy IPv4 infrastructure. |
| + | Ndiff Comparison | Compares two Nmap XML scan results and highlights differences in hosts and ports, helping teams track how a network’s exposure changes between scans. |
...5 more features/limitations. Contact us to get a complete list of features and system requirements.
System Requirements
| # | Minimum |
|---|---|
| 1 | Windows 7 or Windows Server 2008 R2, and newer |
| 2 | Npcap packet-capture driver (bundled with the self-installer) |
| # | Minimum |
|---|---|
| 1 | macOS 10.9 (Mavericks) or later |
| 2 | Intel x86-64 |
| # | Minimum |
|---|---|
| 1 | RPM-based distribution (e.g. Red Hat, Fedora, SUSE), or any distribution via source compilation |
| 2 | x86-64 |
Ratings
4.805
| Capterra | 4.85 based on 54 reviews |
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Repository
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Notes
- Nmap ships with companion tools Zenmap (GUI), Ncat, Ndiff, and Nping, bundled with the Windows and macOS installers, and separately available on Linux.
- The free Nmap Public Source License (NPSL) does not permit bundling Nmap inside commercial products or appliances; vendors needing that must purchase a separate Nmap OEM license.