Network Security Tool

Port Scanner

Scan network ports to check connectivity, detect open services, and analyze network security. Test individual ports or scan ranges with detailed results and service identification.

Browser Limitations

Due to browser security restrictions, this tool can only test ports that support HTTP/HTTPS or WebSocket connections. For comprehensive port scanning, use dedicated network tools.

Scan Configuration

Target IP or Hostname

Enter an IP address or hostname to scan

Port Range

Timeout (ms)

Scan Method

Max Concurrent

Scan Results

Open Ports

Closed Ports

Filtered

Timeout

Port	Status	Service	Response Time	Details

How Port Scanning Works

Port Status Meanings

Open

Port is accepting connections and a service is running

Closed

Port is reachable but no service is listening

Filtered

Port is blocked by firewall or filtering device

Timeout

No response received within timeout period

Common Ports

HTTP 80

HTTPS 443

SSH 22

FTP 21

SMTP 25

DNS 53

MySQL 3306

PostgreSQL 5432

Security Notice

Port scanning should only be performed on networks and systems you own or have explicit permission to test. Unauthorized port scanning may be illegal and can be considered a security violation.