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Best Port Authority Alternatives in 2026

Updated

20 platforms from port scanner software ranked against Port Authority on the same published basis.

  1. 1
    Nmap Free plan LinuxMacself-hostedWin $9,980/mo7.8
    Port Authority vs Nmap
  2. 2
    ScanSearch Free plan apiLinuxWeb $0.30/mo7.8
    Port Authority vs ScanSearch
  3. 3
    Pentest-Tools Port Scanner Free plan apiWeb $95/mo7.6
    Port Authority vs Pentest-Tools Port Scanner
  4. 4
    Naabu Free plan apiLinuxMacself-hostedWin Free7.3
    Port Authority vs Naabu
  5. 5
    RustScan Free plan AndroidLinuxMacself-hostedWin Free7.2
    Port Authority vs RustScan
  6. 6
    NetsCLI Free plan LinuxMacWin Free7.0
    Port Authority vs NetsCLI
  7. 7
    Angry IP Scanner Free plan LinuxMacWin Free6.8
    Port Authority vs Angry IP Scanner
  8. 8
    Masscan Free plan LinuxMacself-hostedWin Free6.8
    Port Authority vs Masscan
  9. 9
    Nmap Online Scan Free trial Web 6.8
    Port Authority vs Nmap Online Scan
  10. 10
    PortScannerLabs Free plan Web Free6.8
    Port Authority vs PortScannerLabs
  11. 11
    Sherlock Forensics Port Scanner Free plan LinuxWin Free6.8
    Port Authority vs Sherlock Forensics Port Scanner
  12. 12
    Unicornscan Free plan apiLinuxMacself-hostedWeb Free6.8
    Port Authority vs Unicornscan
  13. 13
    HostedScan Security Free trial apiWeb $39/mo6.7
    Port Authority vs HostedScan Security
  14. 14
    PortScan.com Free plan apiWeb Free6.7
    Port Authority vs PortScan.com
  15. 15
    SolarWinds Port Scanner Free trial self-hostedWin 6.6
    Port Authority vs SolarWinds Port Scanner
  16. 16
    ZMap LinuxMacself-hosted 6.5
    Port Authority vs ZMap
  17. 17
    Farsight Linux 6.4
    Port Authority vs Farsight
  18. 18
    portwave LinuxMacWin 6.3
    Port Authority vs portwave
  19. 19
    HackerTarget TCP Port Scan apiextensionWeb $0.83/mo6.1
    Port Authority vs HackerTarget TCP Port Scan
  20. 20
    Port Scanner Software Win 6.1
    Port Authority vs Port Scanner Software

Port Authority alternatives compared

#PlatformScoreFree planFromRuns on
1Nmap7.8Free plan$9,980/moLinux, Mac, self-hosted, Windows
2ScanSearch7.8Free plan$0.30/moAPI, Linux, Web
3Pentest-Tools Port Scanner7.6Free plan$95/moAPI, Web
4Naabu7.3Free planFreeAPI, Linux, Mac, self-hosted, Windows
5RustScan7.2Free planFreeAndroid, Linux, Mac, self-hosted, Windows
6NetsCLI7.0Free planFreeLinux, Mac, Windows
7Angry IP Scanner6.8Free planFreeLinux, Mac, Windows
8Masscan6.8Free planFreeLinux, Mac, self-hosted, Windows
9Nmap Online Scan6.8No—Web
10PortScannerLabs6.8Free planFreeWeb
11Sherlock Forensics Port Scanner6.8Free planFreeLinux, Windows
12Unicornscan6.8Free planFreeAPI, Linux, Mac, self-hosted, Web
13HostedScan Security6.7No$39/moAPI, Web
14PortScan.com6.7Free planFreeAPI, Web
15SolarWinds Port Scanner6.6No—self-hosted, Windows
16ZMap6.5No—Linux, Mac, self-hosted
17Farsight6.4No—Linux
18portwave6.3No—Linux, Mac, Windows
19HackerTarget TCP Port Scan6.1No$0.83/moAPI, Browser, Web
20Port Scanner Software6.1No—Windows
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Questions about Port Authority alternatives

What is the best alternative to Port Authority?

Nmap, number 1 in port scanner software with a score of 7.8 out of 10. The others here: ScanSearch, Pentest-Tools Port Scanner, Naabu and 16 more.

What is the best free alternative to Port Authority?

Nmap is the best-ranked alternative with a free plan. 12 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.