Best Network Vulnerability Scanners in 2026
Updated
In short: NSAuditor AI is ranked #1 of 22 as of 4 October 2026, ahead of Nuclei and ScanTitan. The best-ranked option with a free plan is Nuclei. The lowest first paid tier on this page is NSAuditor AI at $3.25/mo.
To evaluate network security coverage, vulnerability scanners can be compared by how they find assets and assess them. The 22 entries are ranked on network discovery, credentialed and agent-based scanning, compliance checks, asset limits, deployment and supported operating systems. Free-plan availability and paid-from pricing are included as well. NSAuditor AI and ScanTitan lead the entries, followed by Intruder and ManageEngine Vulnerability Manager Plus. Use the stated criteria to consider which scanning approaches and operating-system support fit your environment, and whether published asset limits align with the scope you need to cover.
22 network vulnerability scanners ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Recognised 40% · Phone app 26% · Documented 20% · Free plan 14% of the score
- 1 NSAuditor AI No phone app RecognisedPhone appDocumentedFree plan 6.4$3.25/mo Deployment: on-premisesCredentialed scans: YesAgent-based scanning: No
- 2 Nuclei No phone app RecognisedPhone appDocumentedFree plan 6.4Free
- 3 ScanTitan No phone app RecognisedPhone appDocumentedFree plan 6.4$9.92/mo Deployment: hybridCredentialed scans: YesAgent-based scanning: No
- 4 Intruder No phone app RecognisedPhone appDocumentedFree plan 6.3Free
- 5 ManageEngine Vulnerability Manager Plus No phone app RecognisedPhone appDocumentedFree plan 6.3$57.92/mo
- 6 OpenVAS No phone app RecognisedPhone appDocumentedFree plan 6.3€210.33/mo
- 7 Pentest-Tools Port Scanner No phone app RecognisedPhone appDocumentedFree plan 6.3$95/mo
- 8 Qualys External Attack Surface Management No phone app RecognisedPhone appDocumentedFree plan 6.3
- 9 Qualys Scanner Appliance No phone app RecognisedPhone appDocumentedFree plan 5.8 Deployment: hybridCredentialed scans: YesAgent-based scanning: Yes
- 10 OUTSCAN No phone app RecognisedPhone appDocumentedFree plan 5.7 Deployment: cloudCredentialed scans: YesAgent-based scanning: Yes
- 11 CloneGuard Vulnerability Assessment No phone app RecognisedPhone appDocumentedFree plan 5.6$49.58/mo Deployment: hybridCredentialed scans: YesAgent-based scanning: Yes
- 12 Datto Endpoint Backup No phone app RecognisedPhone appDocumentedFree plan 5.6
- 13 Tenable One Attack Surface Management No phone app RecognisedPhone appDocumentedFree plan 5.6 Deployment: hybridCredentialed scans: YesAgent-based scanning: Yes
- 14 OPENVAS SCAN No phone app RecognisedPhone appDocumentedFree plan 5.5 Deployment: on-premisesCredentialed scans: YesAgent-based scanning: Yes
- 15 Rapid7 Surface Command No phone app RecognisedPhone appDocumentedFree plan 5.4
- 16 Nipper OmniSight No phone app RecognisedPhone appDocumentedFree plan 5.3 Deployment: on-premisesCredentialed scans: No
- 17 OWASP Amass No phone app RecognisedPhone appDocumentedFree plan 5.3 Deployment: on-premises
- 18 Tripwire IP360 No phone app RecognisedPhone appDocumentedFree plan 5.3 Deployment: hybridCredentialed scans: YesAgent-based scanning: Yes
- 19 Nipper InfraSight No phone app RecognisedPhone appDocumentedFree plan 5.2 Deployment: on-premisesCredentialed scans: NoAgent-based scanning: No
- 20 SecuDAST No phone app RecognisedPhone appDocumentedFree plan 5.2 Deployment: on-premisesCredentialed scans: Yes
- 21 NSAuditor AI No phone app RecognisedPhone appDocumentedFree plan 5.1
- 22 ShadowSecurityScanner No phone app RecognisedPhone appDocumentedFree plan 4.9
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which network vulnerability scanner is ranked first on Samsung Mobile US Press?
NSAuditor AI is ranked #1 of 22 with a score of 6.4. Nuclei is second and ScanTitan third.
How many of these have a free plan?
7 of the 22 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, NSAuditor AI has the lowest first paid tier we found: $3.25/mo.
How is this list ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.