NSAuditor AI is a network security audit platform for Windows, macOS, and Linux.
Alternatives to OUTSCAN
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

Rapid7 InsightVM
WebLinuxmacOSWindows5.8From $1.62 a month - 16

SecuDAST
SecuDAST is a self-hosted dynamic application security testing tool for running applications inside an organization’s network.
APILinuxSelf-hosted5.7 - 17
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 - 18
OPENVAS SCAN
OPENVAS SCAN is Greenbone’s on-premises vulnerability scanning product for companies and public institutions.
WebAPILinuxSelf-hosted5.6 - 19
Qualys Scanner Appliance
Qualys Scanner Appliance scans internal and internet-facing network assets for vulnerabilities and compliance issues.
WebSelf-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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