Port Checker

Check if specific ports are open on a host and view common port protocols

Hostname or IP Address

Port Number (1-65535)

Common Ports

Click on a port to check it

ℹ️ Browser Limitations

Due to browser security policies, this tool can only directly test connectivity to HTTP/HTTPS ports (80, 443, 8080, 3000). For other ports, it displays protocol and service information based on standard port assignments. For comprehensive port scanning, use dedicated network tools like nmap.