Port Checker Tool: Free PortChecker at PortCheckerTool.com

Use PortCheckerTool.com to check open ports on any device or server. Our free port checker verifies port forwarding for gaming, web servers, and IT setups in seconds.

What is a Port Checker?

At PortCheckerTool.com, our port checker is a free online tool that scans your device or server to check if ports are open or closed. Whether you’re setting up a Minecraft server (port 25565), a web server (port 80), or troubleshooting network issues, our portchecker is fast, secure, and easy to use. Perfect for gamers, developers, and IT professionals.

Common Ports to Check with PortCheckerTool.com

Test these popular ports with our port checker:

• 20 & 21 - FTP (File Transfer Protocol)
• 22 - SSH (Secure Shell)
• 23 - Telnet, a Remote Login Service
• 25 - SMTP (Simple Mail Transfer Protocol)
• 53 - DNS (Domain Name System)
• 80 - HTTP (Hypertext Transfer Protocol)
• 110 - POP3 (Post Office Protocol 3)
• 115 - SFTP (Secure File Transfer Protocol)
• 123 - NTP (Network Time Protocol)
• 143 - IMAP (Internet Message Access Protocol)
• 161 - SNMP (Simple Network Management Protocol)
• 194 - IRC (Internet Relay Chat)
• 443 - SSL / HTTPS (Hypertext Transfer Protocol Secure)
• 445 - SMB
• 465 - SMTPS (Simple Mail Transfer Protocol over SSL)
• 554 - RTSP (Real Time Stream Control Protocol)
• 873 - RSYNC (RSYNC File Transfer Services)
• 993 - IMAPS (Internet Message Access Protocol over SSL)
• 995 - POP3S (Post Office Protocol 3 over SSL)
• 3306 - MySQL
• 3389 - RDP (Remote Desktop Protocol)
• 5432 - PostgreSQL
• 5900 - VNC
• 6379 - Redis
• 8333 - Bitcoin
• 11211 - Memcached
• 25565 - Minecraft

See the full list at Wikipedia’s Port Numbers.

Port Forwarding with PortCheckerTool.com

Port forwarding lets external devices access your network services, like a web server (port 80) or gaming server (port 25565). Use PortCheckerTool.com’s portchecker to verify your port forwarding setup. Learn more at HowToGeek.