The Best Network Vulnerability Scanners in 2026

• 22 tools ranked
• Updated Oct 2026
• Researched from official sources
• Compare tools in this directory
• Sponsor this list

We researched network vulnerability scanners through official vendor websites, including pricing pages, plan tables, and product documentation. Rankings reflect each product’s fit for discovering network and host weaknesses, value for money, and verified features relevant to the core job of network vulnerability scanning.

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

The full ranking 22 tools, best first

1. 1
   
   Intruder 9.4

   Best forBroad hybrid scanning with a free starting tier

   A broad hybrid scanner with a useful free tier and target-based paid pricing.

   Free plan · 14-day trial Our Intruder verdict → + Compare Visit IntruderFor vendors Sponsor this spot · #1 · $149/mo →
   9.4/10★★★★★

   Visit Intruder
2. 2
   
   OpenVAS 9.2

   Best forMature open-source vulnerability management

   A mature, flexible scanner for organizations that need broad vulnerability management.

   Free plan · 14-day trial Our OpenVAS verdict → + Compare Visit OpenVASFor vendors Sponsor this spot · #2 · $99/mo →
   9.2/10★★★★★

   Visit OpenVAS
3. 3
   
   ManageEngine Vulnerability Manager Plus 9.1

   Best forAffordable endpoint and network remediation

   A broad vulnerability manager with affordable entry pricing and strong remediation coverage.

   Free plan · 30-day trial Our ManageEngine Vulnerability Manager Plus verdict → + Compare Visit ManageEngineFor vendors Sponsor this spot · #3 · $79/mo →
   9.1/10★★★★★

   Visit ManageEngine
4. 4
   
   Rapid7 InsightVM 8.9

   Best forRisk-based scanning with remediation workflows

   A broad vulnerability management platform with risk prioritization and remediation tracking.

   Our Rapid7 InsightVM verdict → + Compare Visit Rapid7For vendors Sponsor this spot · #4 · $69/mo →
   8.9/10★★★★☆

   Visit Rapid7
5. 5
   
   Qualys VMDR 8.8

   Best forEnterprise hybrid asset and risk management

   A broad hybrid-asset scanner for enterprises that need risk-based remediation workflows.

   7-day trial Our Qualys VMDR verdict → + Compare Visit Qualys VMDRFor vendors Sponsor this spot · #5 · $59/mo →
   8.8/10★★★★☆

   Visit Qualys VMDR
6. 6
   
   Pentest-Tools Network Vulnerability Scanner 8.7

   Best forCloud scanning with strong reporting and validation

   A cloud scanner combining CVE detection, validation, monitoring, and reporting.

   Free plan · 7-day trial Our Pentest-Tools Network Vulnerability Scanner verdict → + Compare Visit Pentest-Tools
   8.7/10★★★★☆

   Visit Pentest-Tools
7. 7
   
   NSAuditor AI 8.5

   Best forOpen-source scanning with AI and compliance breadth

   A local-first scanner with open-source access, AI analysis, and compliance-focused tiers.

   Free plan Our NSAuditor AI verdict → + Compare Visit NSAuditor AI
   8.5/10★★★★☆

   Visit NSAuditor AI
8. 8
   
   ScanTitan 8.3

   Best forLow-cost network scanning and evidence reports

   Low-cost network scanning with credentialed checks, prioritization, and evidence-backed reports.

   • Credentialed scans
   • Network discovery
   • Compliance checks

   Free plan Our ScanTitan verdict → + Compare Visit ScanTitan
   8.3/10★★★★☆

   Visit ScanTitan
9. 9
   O
   OUTSCAN 8.2

   Best forCloud-based network discovery and compliance

   A cloud scanner for network discovery, authenticated assessment, compliance, and PCI checks.

   • Agent-based scanning
   • Credentialed scans
   • Network discovery

   Pricing on request Our OUTSCAN verdict → + Compare Visit Outpost24
   8.2/10★★★★☆

   Visit Outpost24
10. 10
    
    Kaseya VulScan 7.9

    Best forMulti-site internal and external scanning

    A multi-site scanner for recurring, authenticated vulnerability assessments across distributed environments.

    Pricing on request Our Kaseya VulScan verdict → + Compare Visit Kaseya
    7.9/10★★★★☆

    Visit Kaseya
11. 11
    
    Tenable Nessus 7.8

    Best forEstablished standalone network scanning

    A capable standalone scanner with broad assessment coverage, but a high annual entry price.

    Our Tenable Nessus verdict → + Compare Visit Tenable
    7.8/10★★★★☆

    Visit Tenable
12. 12
    QS
    Qualys Scanner Appliance 7.7

    Best forFlexible enterprise appliance deployments

    A flexible scanner for hybrid, air-gapped, and enterprise network environments.

    • Agent-based scanning
    • Credentialed scans
    • Network discovery

    Pricing on request Our Qualys Scanner Appliance verdict → + Compare Visit Qualys
    7.7/10★★★★☆

    Visit Qualys
13. 13
    
    CloneGuard Vulnerability Assessment 7.6

    Best forHybrid scanning with compliance reporting

    A hybrid scanner for teams that need credentialed assessments and compliance reporting.

    • Agent-based scanning
    • Credentialed scans
    • Network discovery

    Our CloneGuard Vulnerability Assessment verdict → + Compare Visit CloneGuard
    7.6/10★★★★☆

    Visit CloneGuard
14. 14
    TI
    Tripwire IP360 7.5

    Best forHybrid discovery with agent flexibility

    A broad hybrid scanner for enterprises that need discovery, credentialed checks, and risk scoring.

    • Agent-based scanning
    • Credentialed scans
    • Network discovery

    Pricing on request Our Tripwire IP360 verdict → + Compare Visit Tripwire IP360
    7.5/10★★★★☆

    Visit Tripwire IP360
15. 15
    
    OPENVAS SCAN 7.4

    Best forCommercial OpenVAS-style distributed scanning

    A commercial, distributed scanner for network services, endpoints, containers, and compliance.

    • Agent-based scanning
    • Credentialed scans
    • Network discovery

    Pricing on request Our OPENVAS SCAN verdict → + Compare Visit Greenbone
    7.4/10★★★★☆

    Visit Greenbone
16. 16
    
    OWASP Nettacker 7.3

    Best forFree modular network and subdomain discovery

    A free, modular scanner for discovery, vulnerability checks, and flexible reporting.

    • Network discovery

    Free plan Our OWASP Nettacker verdict → + Compare Try OWASP Nettacker
    7.3/10★★★★☆

    Try OWASP Nettacker
17. 17
    S
    ShadowSecurityScanner 7.2

    Best forFree desktop host and service assessment

    A capable open-source desktop scanner for host, service, web, and network checks.

    Free plan Our ShadowSecurityScanner verdict → + Compare Visit site
    7.2/10★★★★☆

    Visit site
18. 18
    
    Nuclei 7.1

    Best forCustomizable open-source template scanning

    A flexible scanner for teams that want customizable coverage without a license cost.

    Free plan Our Nuclei verdict → + Compare Visit Nuclei
    7.1/10★★★★☆

    Visit Nuclei
19. 19
    S
    SecuScan 7.0

    Best forOffline credentialed protocol and TLS checks

    A focused self-hosted scanner for credentialed checks in restricted networks.

    • Credentialed scans
    • Network discovery
    • Compliance checks

    Pricing on request Our SecuScan verdict → + Compare Request a demo
    7.0/10★★★★☆

    Request a demo
20. 20
    
    Tenable Agents 6.8

    Best forOffline and transient host agent scanning

    A focused agent-based scanner for transient, offline, and installed hosts.

    • Agent-based scanning
    • Credentialed scans
    • Compliance checks

    Our Tenable Agents verdict → + Compare Visit Tenable
    6.8/10★★★☆☆

    Visit Tenable
21. 21
    
    Nipper OmniSight 6.7

    Best forOffline network-configuration exposure analysis

    A focused choice for offline network-configuration exposure analysis.

    • Compliance checks

    Pricing on request Our Nipper OmniSight verdict → + Compare Visit Titania
    6.7/10★★★☆☆

    Visit Titania
22. 22
    
    Nipper InfraSight 6.6

    Best forNetwork-device configuration and compliance audits

    A focused choice for configuration audits, compliance evidence and offline network-device modeling.

    • Compliance checks

    Our Nipper InfraSight verdict → + Compare Visit Titania
    6.6/10★★★☆☆

    Visit Titania

No tools match those filters.

Compare at a glance

#	Tool	Free plan	Paid from	Deployment	Score
1	Intruder	Yes			9.4
2	OpenVAS	Yes			9.2
3	ManageEngine Vulnerability Manager Plus	Yes	$695/unit/yr		9.1
4	Rapid7 InsightVM		$1.62/mo		8.9
5	Qualys VMDR	No			8.8
6	Pentest-Tools Network Vulnerability Scanner	Yes	$95/mo		8.7
7	NSAuditor AI	Yes			8.5
8	ScanTitan	Yes	$119/yr	Hybrid	8.3
9	OOUTSCAN			Cloud	8.2
10	Kaseya VulScan	No			7.9
11	Tenable Nessus	No	$4,790/yr		7.8
12	QSQualys Scanner Appliance			Hybrid	7.7
13	CloneGuard Vulnerability Assessment	No	$595/yr	Hybrid	7.6
14	TITripwire IP360			Hybrid	7.5
15	OPENVAS SCAN	No		On-premises	7.4
16	OWASP Nettacker	Yes	Free	On-premises	7.3
17	SShadowSecurityScanner	Yes	Free		7.2
18	Nuclei	Yes	Free		7.1
19	SSecuScan			On-premises	7.0
20	Tenable Agents		$3,500/yr	Hybrid	6.8
21	Nipper OmniSight			On-premises	6.7
22	Nipper InfraSight	No	$1,995/yr	On-premises	6.6

Head-to-head All 25 comparisons →

• Intruder vs OpenVAS
• Intruder vs ManageEngine Vulnerability Manager Plus
• Intruder vs Rapid7 InsightVM
• Intruder vs Qualys VMDR
• Intruder vs Pentest-Tools Network Vulnerability Scanner
• Intruder vs NSAuditor AI
• Intruder vs ScanTitan
• OpenVAS vs ManageEngine Vulnerability Manager Plus
• OpenVAS vs Pentest-Tools Network Vulnerability Scanner

How we rank network vulnerability scanners

Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated 7 Oct 2026 · How we research and update