UDP Port Scanner Online

Free online Nmap UDP port scanner useful to run an UDP port scan on an IP address. Check what UDP ports are open on your website, check if your server has common UDP ports (e.g 53, 69, 123, 1900, 5353) open. Test your server's firewall and make sure it has specific UDP ports closed. You agree to not scan IP addresses you are not authorized to scan.

Enter IPv4/IPv6 address to scan:

  Scan all common ports
  Scan a custom port
  I agree to the terms of use