Free Port Scanner

Network Port Scanner

Free & Professional - Discover open ports, running services, and potential security vulnerabilities with comprehensive network scanning

Network Port Scanner Tool

⚠️ Important Notice:

• Only scan systems you own or have explicit permission to test

• Unauthorized port scanning may violate laws and terms of service

• Use responsibly for security testing and network diagnostics

Scanner Features:

Service Detection: Identifies common services on open ports

Custom Ranges: Scan specific ports or port ranges

Response Timing: Measures connection response times

Progress Tracking: Real-time scan progress monitoring

Why Use Our Port Scanner?

Security Assessment

Essential for security professionals conducting vulnerability assessments, penetration testing, and security audits to identify potential attack vectors and exposed services.

Network Troubleshooting

Perfect for IT administrators diagnosing connectivity issues, verifying firewall rules, and ensuring services are running correctly on expected ports.

Service Discovery

Comprehensive service identification helps understand network topology, discover unauthorized services, and maintain accurate network documentation.

Professional Features

Advanced scanning capabilities with custom port ranges, service detection, response time measurement, and detailed reporting for professional security assessments.

Frequently Asked Questions

Port scanning discovers which network ports are open on a target system and what services are running. It's essential for network security audits, troubleshooting connectivity issues, and verifying firewall configurations.