Open Port Checker
Check if specific ports are open on your server or IP address instantly.
Common Ports
FTP21
SSH22
SMTP25
DNS53
HTTP80
POP3110
IMAP143
HTTPS443
MSSQL1433
MySQL3306
PostgreSQL5432
Redis6379
Free Open Port Checker – Test Your Network Instantly
Easily check if your network ports are open or closed with our free online open port checker. Whether you're troubleshooting connectivity issues or ensuring network security, our tool provides a quick and reliable solution.
Key Features
Instant Checking
Quickly verify the status of any TCP port.
Security Testing
Ensure your network is protected from unauthorized access.
Multi-Port Support
Check multiple ports at once using comma separation.
Universal Tool
Works for routers, servers, and local network devices.
CLI Alternative
Windows (PowerShell)
Test-NetConnection -ComputerName example.com -Port 80Linux / macOS
nc -zv example.com 80