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25 alternatives · from port scanner software

Alternatives to NetsCLI

NetsCLI combines LAN device discovery, TCP and UDP port scans, DNS queries, and host inspection in desktop, terminal, command-line, and MCP interfaces. Its desktop app supports investigation tabs, sortable and filterable results, exports, and scan history. CLI operations return JSON or YAML, with CSV and Markdown available for lists. It is free under the MIT license for personal, open-source, and commercial use on Linux, macOS, and Windows, and its MCP server exposes local…

27.2

Masscan is a command-line TCP port scanner designed to scan many machines across wide address ranges.

Free planOpen sourceLinuxmacOSSelf-hosted
Free plan
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37.0

Nmap is a free, open-source utility for discovering networks and auditing security.

Free planLinuxmacOSSelf-hosted
From $9,980 a month
VisitDetails
  1. 4

    Naabu

    Naabu is a free, open-source command-line port scanner that finds valid ports on hosts.

    Free planAPILinuxmacOSSelf-hosted
    6.8Free plan
    Visit
  2. 5Pentest-Tools Port Scanner logo

    Pentest-Tools Port Scanner

    Pentest-Tools Port Scanner is a cloud-hosted Nmap-based tool for finding open TCP and UDP ports and services on network targets.

    Free planWebAPI
    6.8From $95 a month
    Visit
  3. 6ScanSearch logo

    ScanSearch

    ScanSearch runs live, on-demand SYN scans and service detection to show current network exposure for specified targets.

    Free planWebAPILinux
    6.8From $0.30 a month
    Visit
  4. 7

    eslint-plugin-jsx-a11y

    eslint-plugin-jsx-a11y is a free ESLint plugin that checks JSX in React applications for accessibility issues in static code.

    Free plan
    6.5Free plan
    Visit
  5. 8

    Port Authority

    Port Authority is a free Android port scanner for discovering network hosts and viewing information about the device and other hosts.

    Free planAndroid
    6.5$4.99 one-time
    Visit
  6. 9

    RustScan

    RustScan is a free, open-source command-line port scanner for finding open network ports.

    Free planAndroidLinuxmacOSSelf-hosted
    6.4Free plan
    Visit
  7. 10HostedScan Security logo

    HostedScan Security

    HostedScan Security scans websites, servers, networks, and APIs for vulnerabilities, then presents findings in dashboards, alerts, and audit-ready reports.

    WebAPI
    6.3From $39 a month
    Visit
  8. 11

    Unicornscan

    Unicornscan is a free network reconnaissance tool that sends asynchronous, stateless probes and records responses.

    Free planWebAPILinuxmacOS
    6.2Free plan
    Visit
  9. 12

    Windows Malicious Software Removal Tool

    Windows Malicious Software Removal Tool (MSRT) is a free Windows utility for finding and removing prevalent malware threats and reversing changes they made.

    Free planWindows
    6.2Free plan
    Visit
  10. 13

    Angry IP Scanner

    Angry IP Scanner is a free, open-source desktop tool for scanning IP addresses and ports.

    Free planLinuxmacOSWindows
    6.1Free plan
    Visit
  11. 14

    Nmap Online Scan

    Nmap Online Scan is a web service for online network scanning and port discovery using Nmap.

    Web
    6.1$1.99 one-time
    Visit
  12. 15Advanced Port Scanner logo

    Advanced Port Scanner

    Advanced Port Scanner is free Windows desktop software for finding open network ports and identifying programs running on detected ports.

    Free planWindows
    6.0Free plan
    Visit
  13. 16

    Sherlock Forensics Port Scanner

    Sherlock Forensics Port Scanner is a free desktop GUI tool for identifying exposed TCP ports and the services using them.

    Free planLinuxWindows
    6.0Free plan
    Visit
  14. 17

    HackerTarget TCP Port Scan

    HackerTarget TCP Port Scan checks an IPv4 or IPv6 address for common open ports, helping assess an internet-facing service or firewall.

    WebAPIExtension
    5.9From $120 a year
    Visit
  15. 18

    PortScan.com

    PortScan.com checks TCP ports on the public IP address making the request and reports whether they are open, closed, or filtered.

    Free planWebAPI
    5.9Free plan
    Visit
  16. 19

    PortScannerLabs

    PortScannerLabs is a free web tool for checking an IP address or domain for common open, closed, or filtered network ports and flagging risky exposures.

    Free planWeb
    5.8Free plan
    Visit
  17. 20

    Port Scanner Software

    Port Scanner Software is Windows desktop software that scans specified hosts across server port ranges and reports which ports are open or closed.

    Windows
    5.6$19.99 one-time
    Visit
  18. 21

    ZMap

    ZMap is a free, open-source command-line scanner for Internet-wide network surveys.

    LinuxmacOSSelf-hosted
    5.6
    Visit
  19. 22

    Farsight

    Farsight is a free, self-hosted Linux scanner that uses SYN-based TCP scanning to collect service banners.

    Linux
    5.5
    Visit
  20. 23

    Port Scanner ActiveX Control

    Port Scanner ActiveX Control is paid Windows software for developers adding network port scanning to desktop applications.

    Windows
    5.5$300 one-time
    Visit
  21. 24

    portwave

    portwave is a free command-line scanner for IPv4 and IPv6 targets on Linux, macOS, and Windows.

    LinuxmacOSWindows
    5.5
    Visit
  22. 25

    SolarWinds Port Scanner

    SolarWinds Port Scanner is the open-port scanning feature in Engineer’s Toolset, a network suite with more than 60 tools.

    Self-hostedWindows
    5.5
    Visit

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