NSAuditor AI is a network security audit platform for Windows, macOS, and Linux.
Alternatives to Qualys Scanner Appliance
ManageEngine Vulnerability Manager Plus identifies and assesses network vulnerabilities, then helps teams prioritize and remediate them.
OpenVAS is a vulnerability scanner for finding weaknesses in IT systems.
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Pentest-Tools Port Scanner
Pentest-Tools Port Scanner is a cloud-hosted Nmap-based tool for finding open TCP and UDP ports and services on network targets.
Free planWebAPI7.0From $95 a month - 5

NSAuditor AI
NSAuditor AI is an on-premises security scanning product available for Windows, macOS, and Linux.
Free planLinuxmacOSSelf-hostedWindows6.9From $39.17 a month - 6

Nuclei
Nuclei is a free, open-source vulnerability scanner for applications, infrastructure, cloud platforms, and networks.
Free planLinuxmacOSSelf-hostedWindows6.8Free plan - 7
Qualys External Attack Surface Management
Qualys External Attack Surface Management (EASM) gives organizations an outside-in view of internet-facing infrastructure and continuously monitors connected assets.
Free planWebAPILinux6.8Free plan - 8

Intruder
Intruder provides continuous vulnerability scanning for infrastructure, web applications, APIs and cloud environments, with issue prioritization and remediation guidance.
Free planWebAPILinuxmacOS6.7Free plan - 9

ScanTitan
ScanTitan is a cloud-based platform for vulnerability scanning and attack-surface monitoring, with malware detection and removal.
Free planWebAPI6.7From $9.92 a month - 10

Tenable One Attack Surface Management
Tenable One Attack Surface Management helps organizations identify and assess internet-facing assets and services that could be reached externally.
WebLinuxmacOSWindows6.6 - 11

CloneGuard Vulnerability Assessment
CloneGuard Vulnerability Assessment is a self-managed service for internal and external security assessments, managed through one scanning portal.
WebLinuxmacOSWindows6.3From $49.58 a month - 12
Nipper InfraSight
Nipper InfraSight analyzes exported network-device configurations to identify vulnerabilities, misconfigurations, control gaps, and remediation priorities.
LinuxSelf-hostedWindows6.2From $166.25 a month - 13
Tripwire IP360
Tripwire IP360 discovers and profiles network devices and software, then assesses and ranks vulnerability risk.
Free planWebAPILinuxSelf-hosted6.2Free plan - 14
ShadowSecurityScanner
ShadowSecurityScanner is a free, open-source desktop tool for penetration testing and network vulnerability scanning.
Free planLinuxmacOSWindows6.1Free plan - 15
OUTSCAN
OUTSCAN’s OutscanNX is a vulnerability exposure management platform for network and cloud environments.
WebLinuxmacOSSelf-hosted5.8 - 16

Rapid7 InsightVM
WebLinuxmacOSWindows5.8From $1.62 a month - 17

SecuDAST
SecuDAST is a self-hosted dynamic application security testing tool for running applications inside an organization’s network.
APILinuxSelf-hosted5.7 - 18
Tenable Nessus
Tenable Nessus is on-premises vulnerability-scanning software for assessing IP addresses, operating systems, network devices, databases, applications, and SCADA systems.
LinuxmacOSWindows5.7From $399.17 a month - 19
OPENVAS SCAN
OPENVAS SCAN is Greenbone’s on-premises vulnerability scanning product for companies and public institutions.
WebAPILinuxSelf-hosted5.6 - 20
Nipper OmniSight
Nipper OmniSight is a self-hosted platform from Titania that analyzes exported network-device configurations.
Self-hosted5.4 - 21
Tenable Agents
Tenable Agents is paid vulnerability-management software for scanning systems and checking compliance across Linux, macOS, and Windows environments.
LinuxmacOSWindows5.4From $291.67 a month - 22
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