Port Checker
Check if a specific port is open on your IP or any remote host. Test common service ports instantly.
Your IP: Detecting...
Results
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Common Port Numbers
| Port | Service | Description |
|---|---|---|
| 20-21 | FTP | File Transfer Protocol |
| 22 | SSH | Secure Shell (remote access) |
| 25 | SMTP | Email sending |
| 53 | DNS | Domain Name System |
| 80 | HTTP | Web traffic (unencrypted) |
| 443 | HTTPS | Web traffic (encrypted) |
| 3306 | MySQL | MySQL database |
| 3389 | RDP | Remote Desktop Protocol |
| 5432 | PostgreSQL | PostgreSQL database |
| 8080 | HTTP Alt | Alternative HTTP port |
⚠️ Note: This tool uses a WebSocket-based probe technique from your browser. Results may not be 100% accurate for all ports and hosts due to browser security restrictions. For professional port scanning, use tools like nmap.