Best Tenable Agents Alternatives in 2026
The top Tenable Agents alternatives are Intruder, OpenVAS and ManageEngine Vulnerability Manager Plus: 15 network vulnerability scanners our editors would look at instead of Tenable Agents, in our ranking order.
Tenable Agents: A focused agent-based scanner for transient, offline, and installed hosts. Where it falls short: does not perform network checks or network discovery.
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Best forBroad hybrid scanning with a free starting tier
A broad hybrid scanner with a useful free tier and target-based paid pricing.
9.0/10★★★★☆Visit Intruder -
Best forMature open-source vulnerability management
A mature, flexible scanner for organizations that need broad vulnerability management.
7.7/10★★★★☆Visit OpenVAS -
Best forAffordable endpoint and network remediation
A broad vulnerability manager with affordable entry pricing and strong remediation coverage.
Free plan · paid from $695/yr · 30-day trial Our ManageEngine Vulnerability Manager Plus verdict → Visit ManageEngine7.5/10★★★★☆Visit ManageEngine -
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
7.1/10★★★★☆Visit ScanTitan -
Best forCloud scanning with strong reporting and validation
A cloud scanner combining CVE detection, validation, monitoring, and reporting.
Free plan · paid from $95/mo · 7-day trial Our Pentest-Tools Network Vulnerability Scanner verdict → Visit Pentest-Tools7.0/10★★★★☆Visit Pentest-Tools -
Best forRisk-based scanning with remediation workflows
A broad vulnerability management platform with risk prioritization and remediation tracking.
6.9/10★★★☆☆Visit Rapid7 -
Best forEnterprise hybrid asset and risk management
A broad hybrid-asset scanner for enterprises that need risk-based remediation workflows.
6.9/10★★★☆☆Visit Qualys VMDR -
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
6.5/10★★★☆☆Visit CloneGuard -
Best forOpen-source scanning with AI and compliance breadth
A local-first scanner with open-source access, AI analysis, and compliance-focused tiers.
6.4/10★★★☆☆Visit NSAuditor AI -
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
6.3/10★★★☆☆Visit Outpost24 -
Best forMulti-site internal and external scanning
A multi-site scanner for recurring, authenticated vulnerability assessments across distributed environments.
6.2/10★★★☆☆Visit Kaseya -
Best forCommercial OpenVAS-style distributed scanning
A commercial, distributed scanner for network services, endpoints, containers, and compliance.
- Agent-based scanning
- Credentialed scans
- Network discovery
6.2/10★★★☆☆Visit Greenbone -
Best forFlexible enterprise appliance deployments
A flexible scanner for hybrid, air-gapped, and enterprise network environments.
- Agent-based scanning
- Credentialed scans
- Network discovery
6.0/10★★★☆☆Visit Qualys -
Best forEstablished standalone network scanning
A capable standalone scanner with broad assessment coverage, but a high annual entry price.
5.9/10★★★☆☆Visit Tenable -
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
5.9/10★★★☆☆Visit Tripwire IP360
Tenable Agents Alternatives: Common Questions
What is the best alternative to Tenable Agents?
Intruder: #1 in our Network Vulnerability Scanners ranking, with an editor score of 9.0 out of 10. A broad hybrid scanner with a useful free tier and target-based paid pricing.
Is there a free alternative to Tenable Agents?
Yes. Intruder, OpenVAS, ManageEngine Vulnerability Manager Plus, ScanTitan and Pentest-Tools Network Vulnerability Scanner have a free plan or a free tier (6 of the 15 alternatives on this page).
What is the cheapest paid alternative to Tenable Agents?
Of the alternatives here that publish a price, ScanTitan starts lowest, at $119/yr.
Tenable Agents vs Each Alternative
| # | Tool | Free plan | Paid from | Deployment | Credentialed scans | Compliance checks | Asset limit | Score |
|---|---|---|---|---|---|---|---|---|
| 16 | Tenable Agents | — | $3,500/yr | Hybrid | Yes | Yes | 100 assets | 5.8 |
| 1 | Intruder | Yes | — | — | — | — | — | 9.0 |
| 2 | OpenVAS | Yes | — | — | — | — | 150 assets | 7.7 |
| 3 | ManageEngine Vulnerability Manager Plus | Yes | $695/yr | — | — | — | — | 7.5 |
| 4 | ScanTitan | Yes | $119/yr | Hybrid | Yes | Yes | — | 7.1 |
| 5 | Pentest-Tools Network Vulnerability Scanner | Yes | — | — | — | — | 5 assets | 7.0 |
| 6 | Rapid7 InsightVM | — | — | — | — | — | — | 6.9 |
| 7 | Qualys VMDR | No | — | — | — | — | — | 6.9 |
| 8 | CloneGuard Vulnerability Assessment | No | $595/yr | Hybrid | Yes | Yes | 10 assets | 6.5 |
| 9 | NSAuditor AI | Yes | — | — | — | — | — | 6.4 |
| 10 | OUTSCAN | — | — | Cloud | Yes | Yes | — | 6.3 |
| 11 | Kaseya VulScan | No | — | — | — | — | — | 6.2 |
| 12 | OPENVAS SCAN | No | — | On-premises | Yes | Yes | — | 6.2 |
| 13 | Qualys Scanner Appliance | — | — | Hybrid | Yes | Yes | — | 6.0 |
| 14 | Tenable Nessus | No | $4,790/yr | — | — | — | — | 5.9 |
| 15 | Tripwire IP360 | — | — | Hybrid | Yes | — | — | 5.9 |
Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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