Best Port Authority Alternatives in 2026
Updated
20 platforms from port scanner software ranked against Port Authority on the same published basis.
- 1Port Authority vs Naabu
- 2Port Authority vs ScanSearch
- 3Port Authority vs Pentest-Tools Port Scanner
- 4Port Authority vs PortScan.com
- 5Port Authority vs Unicornscan
- 6Port Authority vs HostedScan Security
- 7Port Authority vs NetsCLI
- 8Port Authority vs Nmap
- 9Port Authority vs Angry IP Scanner
- 10Port Authority vs Masscan
- 11Port Authority vs RustScan
- 12Port Authority vs Nmap Online Scan
- 13Port Authority vs Port Scanner Software
- 14Port Authority vs HackerTarget TCP Port Scan
- 15Port Authority vs Sherlock Forensics Port Scanner
- 16Port Authority vs eslint-plugin-jsx-a11y
- 17Port Authority vs Farsight
- 18Port Authority vs portwave
- 19Port Authority vs ZMap
- 20Port Authority vs Advanced Port Scanner
Port Authority alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Naabu | 7.4 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 2 | ScanSearch | 7.4 | Free plan | $0.30/mo | API, Linux, Web |
| 3 | Pentest-Tools Port Scanner | 7.3 | Free plan | $95/mo | API, Web |
| 4 | PortScan.com | 7.2 | Free plan | Free | API, Web |
| 5 | Unicornscan | 7.2 | Free plan | Free | API, Linux, Mac, self-hosted, Web |
| 6 | HostedScan Security | 6.7 | No | $39/mo | API, Web |
| 7 | NetsCLI | 5.9 | Free plan | Free | Linux, Mac, Windows |
| 8 | Nmap | 5.9 | Free plan | $9,980/mo | Linux, Mac, self-hosted, Windows |
| 9 | Angry IP Scanner | 5.8 | Free plan | Free | Linux, Mac, Windows |
| 10 | Masscan | 5.8 | Free plan | Free | Linux, Mac, self-hosted, Windows |
| 11 | RustScan | 5.8 | Free plan | Free | Android, Linux, Mac, self-hosted, Windows |
| 12 | Nmap Online Scan | 5.4 | No | — | Web |
| 13 | Port Scanner Software | 5.4 | No | — | Windows |
| 14 | HackerTarget TCP Port Scan | 5.2 | No | $0.83/mo | API, Browser, Web |
| 15 | Sherlock Forensics Port Scanner | 5.2 | No | — | Windows, Linux |
| 16 | eslint-plugin-jsx-a11y | 5.1 | No | — | — |
| 17 | Farsight | 5.1 | No | — | Linux |
| 18 | portwave | 5.1 | No | — | Windows, Mac, Linux |
| 19 | ZMap | 5.1 | No | — | Linux, Mac |
| 20 | Advanced Port Scanner | 5.0 | No | — | Windows |
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Questions about Port Authority alternatives
What is the best alternative to Port Authority?
Naabu, number 1 in port scanner software with a score of 7.4 out of 10. The others here: ScanSearch, Pentest-Tools Port Scanner, PortScan.com and 16 more.
What is the best free alternative to Port Authority?
Naabu 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 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.