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Open Port Scanner

Free and powerful TCP port scanning tool to scan your firewall and other computer devices for open ports.

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What is Port Scanner?

A port scanner is a software application or online tool designed to probe a network host for open ports. This is often used by administrators to verify security policies of their networks and by attackers to identify running services on a host with the view to compromise it.


The following is a list of common ports to scan.
  • 21 (FTP)
  • 22 (SSH)
  • 23 (TELNET)
  • 25 (SMTP)
  • 53 (DNS)
  • 80 (HTTP)
  • 110 (POP3)
  • 115 (SFTP)
  • 135 (RPC)
  • 139 (NetBIOS)
  • 143 (IMAP)
  • 194 (IRC)
  • 443 (SSL)
  • 445 (SMB)
  • 1433 (MSSQL)
  • 3306 (MYSQL)
  • 3389 (Remote Desktop)
  • 5632 (PCAnywhere)
  • 5900 (VNC)
  • 6112 (Warcraft III)
*Enter URL / IP (e.g. http://www.website.com -or- 192.168.3.45)
Port Number(s)
(e.g. 80,443,... etc. and/or range 21-25) - (Max 10 ports at a time)
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