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Best Outpost24 Attack Surface Management Alternatives in 2026

Updated

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

  1. 1
    Pentest-Tools Port Scanner Free plan apiWeb $95/mo7.4
    Outpost24 Attack Surface Management vs Pentest-Tools Port Scanner
  2. 2
    Qualys External Attack Surface Management Free trial apiLinuxWeb 7.4
    Outpost24 Attack Surface Management vs Qualys External Attack Surface Management
  3. 3
    Intruder Free plan apiLinuxMacWebWin Free7.3
    Outpost24 Attack Surface Management vs Intruder
  4. 4
    ManageEngine Vulnerability Manager Plus Free plan apiLinuxMacself-hostedWeb $57.92/mo7.3
    Outpost24 Attack Surface Management vs ManageEngine Vulnerability Manager Plus
  5. 5
    OpenVAS Free plan apiLinuxMacself-hostedWeb €210.33/mo7.3
    Outpost24 Attack Surface Management vs OpenVAS
  6. 6
    OWASP Nettacker Free plan apiLinuxMacself-hostedWeb Free7.2
    Outpost24 Attack Surface Management vs OWASP Nettacker
  7. 7
    Tanium Deploy apiLinuxMacself-hostedWin 7.0
    Outpost24 Attack Surface Management vs Tanium Deploy
  8. 9
    ConnectSecure Free trial apiWeb $300/mo6.7
    Outpost24 Attack Surface Management vs ConnectSecure
  9. 10
    Holm Security Vulnerability Management Free trial apiLinuxself-hostedWebWin 6.7
    Outpost24 Attack Surface Management vs Holm Security Vulnerability Management
  10. 11
    Rapid7 Surface Command Free trial apiLinuxMacWebWin 6.7
    Outpost24 Attack Surface Management vs Rapid7 Surface Command
  11. 12
    VAddy Free trial apiLinuxMacself-hostedWeb ¥19,800/mo6.7
    Outpost24 Attack Surface Management vs VAddy
  12. 13
    Nmap Free plan LinuxMacself-hostedWin $9,980/mo5.9
    Outpost24 Attack Surface Management vs Nmap
  13. 14
    NSAuditor AI Free plan LinuxMacWin $3.25/mo5.9
    Outpost24 Attack Surface Management vs NSAuditor AI
  14. 15
    Nuclei Free plan LinuxMacself-hostedWin Free5.9
    Outpost24 Attack Surface Management vs Nuclei
  15. 16
    Datto Endpoint Backup MacWin 5.4
    Outpost24 Attack Surface Management vs Datto Endpoint Backup
  16. 17
    Ivanti Neurons for Zero Trust Access AndroidiOSLinuxMacself-hosted 5.4
    Outpost24 Attack Surface Management vs Ivanti Neurons for Zero Trust Access
  17. 18
    Tenable One Attack Surface Management LinuxMacWebWin 5.4
    Outpost24 Attack Surface Management vs Tenable One Attack Surface Management
  18. 19
    NSAuditor AI WinMacLinux 5.2
    Outpost24 Attack Surface Management vs NSAuditor AI
  19. 20
    Tenable Nessus LinuxMacWin $399.17/mo5.2
    Outpost24 Attack Surface Management vs Tenable Nessus
  20. 21
    Vornin Web 5.2
    Outpost24 Attack Surface Management vs Vornin

Outpost24 Attack Surface Management alternatives compared

#PlatformScoreFree planFromRuns on
1Pentest-Tools Port Scanner7.4Free plan$95/moAPI, Web
2Qualys External Attack Surface Management7.4No—API, Linux, Web
3Intruder7.3Free planFreeAPI, Linux, Mac, Web, Windows
4ManageEngine Vulnerability Manager Plus7.3Free plan$57.92/moAPI, Linux, Mac, self-hosted, Web, Windows
5OpenVAS7.3Free plan€210.33/moAPI, Linux, Mac, self-hosted, Web, Windows
6OWASP Nettacker7.2Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
7Tanium Deploy7.0No—API, Linux, Mac, self-hosted, Windows
9ConnectSecure6.7No$300/moAPI, Web
10Holm Security Vulnerability Management6.7No—API, Linux, self-hosted, Web, Windows
11Rapid7 Surface Command6.7No—API, Linux, Mac, Web, Windows
12VAddy6.7No¥19,800/moAPI, Linux, Mac, self-hosted, Web
13Nmap5.9Free plan$9,980/moLinux, Mac, self-hosted, Windows
14NSAuditor AI5.9Free plan$3.25/moLinux, Mac, Windows
15Nuclei5.9Free planFreeLinux, Mac, self-hosted, Windows
16Datto Endpoint Backup5.4No—Mac, Windows
17Ivanti Neurons for Zero Trust Access5.4No—Android, iOS, Linux, Mac, self-hosted, Web, Windows
18Tenable One Attack Surface Management5.4No—Linux, Mac, Web, Windows
19NSAuditor AI5.2No—Windows, Mac, Linux
20Tenable Nessus5.2No$399.17/moLinux, Mac, Windows
21Vornin5.2No—Web
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Questions about Outpost24 Attack Surface Management alternatives

What is the best alternative to Outpost24 Attack Surface Management?

Pentest-Tools Port Scanner, number 1 in vulnerability scanning software with a score of 7.4 out of 10. The others here: Qualys External Attack Surface Management, Intruder, ManageEngine Vulnerability Manager Plus and 16 more.

What is the best free alternative to Outpost24 Attack Surface Management?

Pentest-Tools Port Scanner is the best-ranked alternative with a free plan. 8 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.