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Best Network Vulnerability Scanners in 2026

To assess security across networked assets, scanners differ in how they find and examine systems. The ranked entries are compared on network discovery, credentialed scans, compliance checks, and agent-based scanning. Asset limits, deployment, and supported operating systems also help define fit for an environment; free-plan availability and paid-from pricing offer cost context. Intruder, ManageEngine Vulnerability Manager Plus, and NSAuditor AI lead the displayed entries. Consider the scope of assets you need to scan and the coverage and operating-system support required, then weigh the listed scanning and deployment details.

  1. 1

    NSAuditor AI

    Free plan Open source APILinuxMac+2

    NSAuditor AI combines read-only, agentless auditing with optional AI analysis and edition-dependent reporting. Community is free; cloud auditors and eight-framework mapping are Enterprise features.

    9.0 Free plan · paid from $470/yr Visit site
  2. 2

    Intruder

    Free plan APILinuxMac+2

    Intruder combines continuous scanning with prioritization and remediation guidance across several kinds of targets.

    7.7 Free plan · 14-day trial Visit site
  3. 3

    ManageEngine Vulnerability Manager Plus

    Free plan APILinuxMac+3

    Vulnerability Manager Plus combines risk prioritization with patching, compliance policies, and remediation tracking.

    7.6 Free plan · paid from $695/yr · 30-day trial Visit site
  4. 4

    NSAuditor AI

    Free plan LinuxMacSelf-hosted+1

    NSAuditor AI combines on-premises scanning with a free Community tier and optional AI analysis.

    7.5 Free plan Visit site
  5. 5

    Nuclei

    Free plan LinuxMacSelf-hosted+1

    Nuclei offers a template-based approach to scanning across several target types, with custom checks and CI/CD integration.

    7.4 Free plan Visit site
  6. 6

    OpenVAS

    Free plan APILinuxMac+3

    OpenVAS covers a broad range of IT targets, with commercial deployment options that remain within a customer's environment. Its free edition has notable update, feature, and support limitations.

    7.4 Free plan · 14-day trial Visit site
  7. 7

    ShadowSecurityScanner

    Free plan LinuxMacWindows

    ShadowSecurityScanner combines broad network and web checks with scan comparisons, risk scoring, and multiple report formats.

    6.9 Free plan Visit site
  8. 8

    ScanTitan

    Free plan APIWeb

    ScanTitan combines external network vulnerability checks with malware monitoring, integrations, and compliance-oriented reporting.

    6.8 Free plan · paid from $119/yr Visit site
  9. 9

    Nipper InfraSight

    Free trial LinuxSelf-hostedWindows

    Nipper InfraSight provides configuration-based security and compliance assessment with separate tiers for daily hardening, mapped reporting, and offline environments.

    6.3 From $1,995/yr Visit site
  10. 10

    OWASP Nettacker

    Free plan LinuxMacWeb+1
    6.2 Free plan Visit site
  11. 11

    CloneGuard Vulnerability Assessment

    Paid LinuxMacWeb+1

    CloneGuard combines internal and external scanning, compliance-oriented reporting, and rescans in a self-managed service. Starter costs $595 a year and covers 10 public IPs or URLs.

    6.1 From $595/yr Visit site
  12. 12

    Pentest-Tools Network Vulnerability Scanner

    Free plan Web
    5.9 Free plan · paid from $95/mo · 7-day trial Visit site
  13. 13

    Tripwire IP360

    Free trial APILinuxSelf-hosted+1

    IP360 combines asset discovery, risk scoring, and vulnerability workflow tools, with on-premises and managed-service options.

    5.8 Pricing on request Visit site
  14. 14

    OPENVAS SCAN

    Paid APILinuxSelf-hosted+1

    OPENVAS SCAN combines broad infrastructure and container scanning with risk prioritization, remediation tracking and continuously updated tests.

    5.7 Free plan · 14-day trial Visit site
  15. 15

    OUTSCAN

    Paid LinuxMacSelf-hosted+2

    OutscanNX combines ongoing vulnerability discovery, contextual scoring, reporting and workflow integrations across supported deployment types.

    5.7 Pricing on request Visit site
  16. 16

    Nipper OmniSight

    Paid Self-hosted

    Choose Nipper OmniSight if your team needs offline configuration assessment, segmentation validation, and repeatable evidence for security or audit work.

    5.5 Pricing on request Visit site
  17. 17

    Qualys Scanner Appliance

    Paid Self-hostedWeb

    Choose Qualys Scanner Appliance if your organization needs internal network scanning across on-premises, cloud, or hybrid assets, or offline scanning for disconnected environments.

    5.0 Pricing on request Visit site
  18. 18

    Rapid7 InsightVM

    Paid LinuxMacWeb+1

    InsightVM combines multiple assessment methods with advanced risk prioritization and remediation tracking. Consider the 500-asset pricing basis and listed plan terms when assessing fit.

    4.8 From $1.62/mo Visit site
  19. 19

    Kaseya VulScan

    Paid Web

    Kaseya VulScan provides broad vulnerability-scanning coverage across infrastructure, applications, and internet-facing assets.

    4.7 Pricing on request Visit site
  20. 20

    Tenable Nessus

    Paid LinuxMacWindows

    Nessus combines broad target coverage with authenticated, continuous, and compliance-focused scanning. Compare the two paid plans if web application and domain allowances matter.

    4.6 From $4,790/yr Visit site
  21. 21

    Qualys Patch Management

    Paid Web
    4.5 From $2,995 · 30-day trial Visit site
  22. 22

    Tenable Agents

    Paid LinuxMacWindows

    Tenable Agents combines several scanning approaches with compliance checks across a broad listed set of operating systems.

    4.5 From $3,500/yr Visit site
  23. 23

    SecuScan

    Paid
    3.7 Pricing on request Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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