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Best Tenable Nessus Alternatives in 2026

Updated

20 apps from vulnerability scanning software ranked against Tenable Nessus on the same published basis.

  1. 1
    Intruder Free plan apiLinuxMacWebWin Free6.6
    Tenable Nessus vs Intruder
  2. 2
    ManageEngine Vulnerability Manager Plus Free plan apiLinuxMacself-hostedWeb $57.92/mo6.6
    Tenable Nessus vs ManageEngine Vulnerability Manager Plus
  3. 3
    Nmap Free plan LinuxMacself-hostedWin $9,980/mo6.6
    Tenable Nessus vs Nmap
  4. 4
    NSAuditor AI Free plan LinuxMacWin $3.25/mo6.6
    Tenable Nessus vs NSAuditor AI
  5. 5
    Nuclei Free plan LinuxMacself-hostedWin Free6.6
    Tenable Nessus vs Nuclei
  6. 6
    OpenVAS Free plan apiLinuxMacself-hostedWeb €210.33/mo6.6
    Tenable Nessus vs OpenVAS
  7. 7
    OWASP Nettacker Free plan apiLinuxMacself-hostedWeb Free6.6
    Tenable Nessus vs OWASP Nettacker
  8. 8
    Qualys External Attack Surface Management Free trial apiLinuxWeb 6.5
    Tenable Nessus vs Qualys External Attack Surface Management
  9. 9
    Pentest-Tools Port Scanner Free plan apiWeb $95/mo6.4
    Tenable Nessus vs Pentest-Tools Port Scanner
  10. 10
    Tanium Deploy apiLinuxMacself-hostedWin 5.6
    Tenable Nessus vs Tanium Deploy
  11. 11
    Ivanti Neurons for Zero Trust Access AndroidiOSLinuxMacself-hosted 5.4
    Tenable Nessus vs Ivanti Neurons for Zero Trust Access
  12. 12
    N-able Risk Intelligence LinuxMacWebWin 5.4
    Tenable Nessus vs N-able Risk Intelligence
  13. 13
    NSAuditor AI WinMacLinux 5.4
    Tenable Nessus vs NSAuditor AI
  14. 14
    Outpost24 Attack Surface Management apiWeb 5.4
    Tenable Nessus vs Outpost24 Attack Surface Management
  15. 15
    Rapid7 InsightVM LinuxMacWebWin $1.62/mo5.4
    Tenable Nessus vs Rapid7 InsightVM
  16. 16
    Sirius WebWinMacLinux 5.4
    Tenable Nessus vs Sirius
  17. 17
    ShadowSecurityScanner WinMacLinux 5.3
    Tenable Nessus vs ShadowSecurityScanner
  18. 18
    Tenable One Attack Surface Management LinuxMacWebWin 5.3
    Tenable Nessus vs Tenable One Attack Surface Management
  19. 19
    Nikto Free plan Linuxself-hostedWin Free5.2
    Tenable Nessus vs Nikto
  20. 20
    Rapid7 Surface Command Free trial apiLinuxMacWebWin 5.2
    Tenable Nessus vs Rapid7 Surface Command

Tenable Nessus alternatives compared

#AppScoreFree planFromRuns on
1Intruder6.6Free planFreeAPI, Linux, Mac, Web, Windows
2ManageEngine Vulnerability Manager Plus6.6Free plan$57.92/moAPI, Linux, Mac, self-hosted, Web, Windows
3Nmap6.6Free plan$9,980/moLinux, Mac, self-hosted, Windows
4NSAuditor AI6.6Free plan$3.25/moLinux, Mac, Windows
5Nuclei6.6Free planFreeLinux, Mac, self-hosted, Windows
6OpenVAS6.6Free plan€210.33/moAPI, Linux, Mac, self-hosted, Web, Windows
7OWASP Nettacker6.6Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
8Qualys External Attack Surface Management6.5No—API, Linux, Web
9Pentest-Tools Port Scanner6.4Free plan$95/moAPI, Web
10Tanium Deploy5.6No—API, Linux, Mac, self-hosted, Windows
11Ivanti Neurons for Zero Trust Access5.4No—Android, iOS, Linux, Mac, self-hosted, Web, Windows
12N-able Risk Intelligence5.4No—Linux, Mac, Web, Windows
13NSAuditor AI5.4No—Windows, Mac, Linux
14Outpost24 Attack Surface Management5.4No—API, Web
15Rapid7 InsightVM5.4No$1.62/moLinux, Mac, Web, Windows
16Sirius5.4No—Web, Windows, Mac, Linux
17ShadowSecurityScanner5.3No—Windows, Mac, Linux
18Tenable One Attack Surface Management5.3No—Linux, Mac, Web, Windows
19Nikto5.2Free planFreeLinux, self-hosted, Windows
20Rapid7 Surface Command5.2No—API, Linux, Mac, Web, Windows
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Questions about Tenable Nessus alternatives

What is the best alternative to Tenable Nessus?

Intruder, number 1 in vulnerability scanning software with a score of 6.6 out of 10. The others here: ManageEngine Vulnerability Manager Plus, Nmap, NSAuditor AI and 16 more.

What is the best free alternative to Tenable Nessus?

Intruder is the best-ranked alternative with a free plan. 9 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.