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Best Nmap Online Scan Alternatives in 2026

Updated

20 apps from port scanner software ranked against Nmap Online Scan on the same published basis.

  1. 1
    RustScan Free plan AndroidLinuxMacself-hostedWin Free7.7
    Nmap Online Scan vs RustScan
  2. 2
    Port Authority Android 6.6
    Nmap Online Scan vs Port Authority
  3. 3
    Naabu Free plan apiLinuxMacself-hostedWin Free6.4
    Nmap Online Scan vs Naabu
  4. 4
    Pentest-Tools Port Scanner Free plan apiWeb $95/mo6.4
    Nmap Online Scan vs Pentest-Tools Port Scanner
  5. 5
    ScanSearch Free plan apiLinuxWeb $0.30/mo6.4
    Nmap Online Scan vs ScanSearch
  6. 6
    NetsCLI Free plan LinuxMacWin Free6.3
    Nmap Online Scan vs NetsCLI
  7. 7
    Nmap Free plan LinuxMacself-hostedWin $9,980/mo6.3
    Nmap Online Scan vs Nmap
  8. 8
    Angry IP Scanner Free plan LinuxMacWin Free6.2
    Nmap Online Scan vs Angry IP Scanner
  9. 9
    Masscan Free plan LinuxMacself-hostedWin Free6.2
    Nmap Online Scan vs Masscan
  10. 10
    Unicornscan Free plan apiLinuxMacself-hostedWeb Free6.2
    Nmap Online Scan vs Unicornscan
  11. 12
    Port Scanner Software Win 5.6
    Nmap Online Scan vs Port Scanner Software
  12. 13
    HostedScan Security Free trial apiWeb $39/mo5.5
    Nmap Online Scan vs HostedScan Security
  13. 14
    HackerTarget TCP Port Scan Web 5.4
    Nmap Online Scan vs HackerTarget TCP Port Scan
  14. 15
    Sherlock Forensics Port Scanner WinLinux 5.4
    Nmap Online Scan vs Sherlock Forensics Port Scanner
  15. 16
    eslint-plugin-jsx-a11y 5.3
    Nmap Online Scan vs eslint-plugin-jsx-a11y
  16. 17
    Farsight Linux 5.3
    Nmap Online Scan vs Farsight
  17. 18
    PortScan.com Free plan apiWeb Free5.3
    Nmap Online Scan vs PortScan.com
  18. 19
    portwave WinMacLinux 5.3
    Nmap Online Scan vs portwave
  19. 20
    ZMap LinuxMac 5.3
    Nmap Online Scan vs ZMap
  20. 21
    Advanced Port Scanner Win 5.2
    Nmap Online Scan vs Advanced Port Scanner

Nmap Online Scan alternatives compared

#AppScoreFree planFromRuns on
1RustScan7.7Free planFreeAndroid, Linux, Mac, self-hosted, Windows
2Port Authority6.6No—Android
3Naabu6.4Free planFreeAPI, Linux, Mac, self-hosted, Windows
4Pentest-Tools Port Scanner6.4Free plan$95/moAPI, Web
5ScanSearch6.4Free plan$0.30/moAPI, Linux, Web
6NetsCLI6.3Free planFreeLinux, Mac, Windows
7Nmap6.3Free plan$9,980/moLinux, Mac, self-hosted, Windows
8Angry IP Scanner6.2Free planFreeLinux, Mac, Windows
9Masscan6.2Free planFreeLinux, Mac, self-hosted, Windows
10Unicornscan6.2Free planFreeAPI, Linux, Mac, self-hosted, Web
12Port Scanner Software5.6No—Windows
13HostedScan Security5.5No$39/moAPI, Web
14HackerTarget TCP Port Scan5.4No—Web
15Sherlock Forensics Port Scanner5.4No—Windows, Linux
16eslint-plugin-jsx-a11y5.3No——
17Farsight5.3No—Linux
18PortScan.com5.3Free planFreeAPI, Web
19portwave5.3No—Windows, Mac, Linux
20ZMap5.3No—Linux, Mac
21Advanced Port Scanner5.2No—Windows
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Questions about Nmap Online Scan alternatives

What is the best alternative to Nmap Online Scan?

RustScan, number 1 in port scanner software with a score of 7.7 out of 10. The others here: Port Authority, Naabu, Pentest-Tools Port Scanner and 16 more.

What is the best free alternative to Nmap Online Scan?

RustScan 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 mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation.