Vulnerability Scanning Software
Alternatives to Nmap
Nmap maps reachable infrastructure and audits security from a free, open-source desktop utility. Raw-packet discovery identifies hosts, services, versions, operating systems, and packet filters, while TCP and UDP scans, ping sweeps, and OS and version detection cover core reconnaissance. Its scripting engine automates discovery and vulnerability checks, and Zenmap, Ncat, Ndiff, and Nping extend the suite with viewing, transfer, comparison, and packet analysis. It runs across Windows, macOS, Linux, and other supported systems, with network inventory and uptime monitoring among its routine uses.
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ManageEngine Vulnerability Manager Plus It suits teams responsible for vulnerability assessment, patch deployment and remediation across Windows and Linux environments.
From $57.92/mo Free plan Web · Windows · macOS · Linux9.3 Visit Specs - 02 NSAuditor AI
It suits organizations that want network audits on their own infrastructure, including teams with read-only or air-gapped requirements.
From $39.17/mo Free plan Open source Windows · macOS · Linux · API9.2 Visit Specs - 03
Intruder Intruder suits teams responsible for finding and prioritizing vulnerabilities across infrastructure, cloud environments, web apps, or APIs.
Free plan Web · Windows · macOS · Linux9.0 Visit Specs - 04 Microsoft Defender for Business From $0.25/mo Free trial Windows · macOS · iOS · Android8.8 Visit Specs
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NSAuditor AI The product is aimed at MSPs, MSSPs, compliance consultancies, and mid-market teams in sectors including healthcare, finance, government, and critical infrastructure.
From $39.17/mo Free plan Windows · macOS · Linux · Self-hosted8.5 Visit Specs - 06
OpenVAS OPENVAS may suit organizations that need vulnerability scanning across systems, applications, endpoints, or container images.
From €210.33/mo Free plan Web · Windows · macOS · Linux8.5 Visit Specs - 07
Nuclei Nuclei suits security engineers, analysts, red teams, DevOps teams, bug bounty hunters, and penetration testers who want template-based vulnerability checks.
Free plan Windows · macOS · Linux · Self-hosted8.4 Visit Specs - 08
ConnectSecure From $300/mo Free trial Web · API8.3 Visit Specs - 09
Holm Security Vulnerability Management Free trial Web · Windows · Linux · API8.3 Visit Specs - 10 Vicarius vRx
vRx is aimed at security leaders, vulnerability analysts, patch engineers, MSP and MSSP operators, and compliance leads.
From $4/mo Free trial Web · Windows · macOS · Linux8.0 Visit Specs - 11 OWASP Nettacker
It is intended for cybersecurity professionals and ethical hackers conducting reconnaissance, vulnerability assessments, and network security audits.
Free plan Web · Windows · macOS · Linux7.9 Visit Specs - 12 Sirius
Sirius is presented for security teams that need an operator-focused scanner with control over discovery, agents, and triage.
Free plan Web · Windows · macOS · Linux7.9 Visit Specs - 13 VAddy From ¥19,800/mo Free trial Web · macOS · Linux · API7.9 Visit Specs
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Amazon Inspector Free trial Web · API7.8 Visit Specs - 15 Nikto Free plan Windows · Linux · Self-hosted7.8 Visit Specs
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Vornin Vornin suits solo IT teams, organizations preparing for regulated audits, and large multi-cloud estates, matching its Team, Business, and Scale descriptions.
From €99/mo Free plan Web · API7.7 Visit Specs - 17 ShadowSecurityScanner
It is intended for security engineers, system administrators, red teams, and DevSecOps pipelines needing local vulnerability scans.
Free plan Windows · macOS · Linux7.5 Visit Specs - 18 Sploit.io Free plan Web7.5 Visit Specs
- 19 Wordfence Security
It suits WordPress site owners who need firewall, scanning, login protection, and centralized management.
From $12.42/mo Free plan Web · Self-hosted7.5 Visit Specs - 20 WPScan Free plan macOS · Linux · API · Self-hosted7.3 Visit Specs
- 21 SecApps Web7.2 Visit Specs
- 22 Microsoft Sentinel From $3/mo Web6.7 Visit Specs
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Rapid7 InsightVM From $1.62/mo Web · Windows · macOS · Linux6.7 Visit Specs - 24 Qualys Patch Management From $2,195/mo Web6.5 Visit Specs
- 25 Tenable Nessus From $399.17/mo Windows · macOS · Linux6.5 Visit Specs
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XBOW Web · API6.5 Visit Specs - 27 N-able Risk Intelligence Web · Windows · macOS · Linux6.2 Visit Specs
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Tenable One Vulnerability Management From $3,500/mo Web6.2 Visit Specs - 29
Ivanti Neurons for Risk-Based Vulnerability Management Web6.0 Visit Specs - 30
Kaseya VulScan Web6.0 Visit Specs
Choosing instead of Nmap
Readers may switch when they need continuous path diagnosis, Wi-Fi heatmaps, bandwidth rules, Internet speed and streaming measurements, DNSSEC-specific analysis, or tests launched from distant probes. Nmap is not a comprehensive vulnerability scanner, and most port-scan types require privileged access. Commercial redistribution also needs an OEM license, unlike ordinary free end-user use. Weigh whether your priority is discovery or a narrower diagnostic job, then compare local versus hosted deployment, mobile availability, automation interfaces, measurement scope, and recurring or one-time charges.