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Best Outpost24 Attack Surface Management Alternatives in 2026

Updated

20 apps from vulnerability scanning software ranked against Outpost24 Attack Surface Management on the same published basis.

  1. 1
    Intruder Free plan apiLinuxMacWebWin Free6.6
    Outpost24 Attack Surface Management vs Intruder
  2. 2
    ManageEngine Vulnerability Manager Plus Free plan apiLinuxMacself-hostedWeb $57.92/mo6.6
    Outpost24 Attack Surface Management vs ManageEngine Vulnerability Manager Plus
  3. 3
    Nmap Free plan LinuxMacself-hostedWin $9,980/mo6.6
    Outpost24 Attack Surface Management vs Nmap
  4. 4
    NSAuditor AI Free plan LinuxMacWin $3.25/mo6.6
    Outpost24 Attack Surface Management vs NSAuditor AI
  5. 5
    Nuclei Free plan LinuxMacself-hostedWin Free6.6
    Outpost24 Attack Surface Management vs Nuclei
  6. 6
    OpenVAS Free plan apiLinuxMacself-hostedWeb €210.33/mo6.6
    Outpost24 Attack Surface Management vs OpenVAS
  7. 7
    OWASP Nettacker Free plan apiLinuxMacself-hostedWeb Free6.6
    Outpost24 Attack Surface Management vs OWASP Nettacker
  8. 8
    Qualys External Attack Surface Management Free trial apiLinuxWeb 6.5
    Outpost24 Attack Surface Management vs Qualys External Attack Surface Management
  9. 9
    Nikto Free plan Linuxself-hostedWin Free6.4
    Outpost24 Attack Surface Management vs Nikto
  10. 10
    Pentest-Tools Port Scanner Free plan apiWeb $95/mo6.4
    Outpost24 Attack Surface Management vs Pentest-Tools Port Scanner
  11. 11
    WPScan Free plan apiLinuxMacself-hosted Free6.4
    Outpost24 Attack Surface Management vs WPScan
  12. 12
    Tanium Deploy apiLinuxMacself-hostedWin 5.6
    Outpost24 Attack Surface Management vs Tanium Deploy
  13. 13
    Ivanti Neurons for Zero Trust Access AndroidiOSLinuxMacself-hosted 5.4
    Outpost24 Attack Surface Management vs Ivanti Neurons for Zero Trust Access
  14. 14
    N-able Risk Intelligence LinuxMacWebWin 5.4
    Outpost24 Attack Surface Management vs N-able Risk Intelligence
  15. 15
    NSAuditor AI WinMacLinux 5.4
    Outpost24 Attack Surface Management vs NSAuditor AI
  16. 17
    Rapid7 InsightVM LinuxMacWebWin $1.62/mo5.4
    Outpost24 Attack Surface Management vs Rapid7 InsightVM
  17. 18
    Sirius WebWinMacLinux 5.4
    Outpost24 Attack Surface Management vs Sirius
  18. 19
    ShadowSecurityScanner WinMacLinux 5.3
    Outpost24 Attack Surface Management vs ShadowSecurityScanner
  19. 20
    Sploit.io Web 5.3
    Outpost24 Attack Surface Management vs Sploit.io
  20. 21
    Tenable One Attack Surface Management LinuxMacWebWin 5.3
    Outpost24 Attack Surface Management vs Tenable One Attack Surface Management

Outpost24 Attack Surface Management 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
9Nikto6.4Free planFreeLinux, self-hosted, Windows
10Pentest-Tools Port Scanner6.4Free plan$95/moAPI, Web
11WPScan6.4Free planFreeAPI, Linux, Mac, self-hosted
12Tanium Deploy5.6No—API, Linux, Mac, self-hosted, Windows
13Ivanti Neurons for Zero Trust Access5.4No—Android, iOS, Linux, Mac, self-hosted, Web, Windows
14N-able Risk Intelligence5.4No—Linux, Mac, Web, Windows
15NSAuditor AI5.4No—Windows, Mac, Linux
17Rapid7 InsightVM5.4No$1.62/moLinux, Mac, Web, Windows
18Sirius5.4No—Web, Windows, Mac, Linux
19ShadowSecurityScanner5.3No—Windows, Mac, Linux
20Sploit.io5.3No—Web
21Tenable One Attack Surface Management5.3No—Linux, Mac, Web, Windows
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Questions about Outpost24 Attack Surface Management alternatives

What is the best alternative to Outpost24 Attack Surface Management?

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 Outpost24 Attack Surface Management?

Intruder is the best-ranked alternative with a free plan. 10 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.