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Nmap Command Builder & Results Parser

Visual Nmap command generator with preset templates and intelligent results parser for security scanning.

Target Configuration

Examples: 192.168.1.1, 10.0.0.0/24, example.com, 192.168.1.1-20

Quick Presets

Scan Type

Port Configuration

Detection & Enumeration

Timing Template

NSE Scripts

Additional Options

Generated Command

Elevated privileges required
Requires elevated privileges (sudo added automatically)
sudo nmap [options] <target>

Legal Notice

Only use nmap on systems you own or have explicit written permission to scan. Unauthorized port scanning may be illegal in your jurisdiction.

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How the Nmap Command Builder Works

The Nmap Command Builder provides a visual interface to construct complex nmap commands without memorizing syntax. It includes two powerful features:

1. Command Builder

Select scan options visually and the tool generates the complete nmap command. Features include:

  • Quick Presets - One-click templates for common scan scenarios
  • Scan Type Selection - TCP SYN, TCP Connect, UDP, and more
  • Port Configuration - Default, top ports, all ports, or specific ranges
  • Detection Options - Service version, OS detection, NSE scripts
  • Timing Control - From paranoid (T0) to insane (T5)

2. Results Parser

Paste nmap output to get structured analysis with security insights:

  • Host Information - IP addresses, hostnames, status
  • Port Analysis - Open ports organized by service
  • Security Insights - Automatic detection of dangerous services
  • OS Detection - Operating system identification

Common Nmap Scan Types

Scan TypeFlagDescriptionUse Case
TCP SYN-sSStealth scan, doesn't complete handshakeMost common, requires sudo
TCP Connect-sTFull TCP connectionNo privileges required
UDP Scan-sUScan UDP portsDNS, DHCP, SNMP services
TCP ACK-sAMap firewall rulesetsFirewall testing
Ping Scan-snHost discovery onlyNetwork mapping

Nmap Best Practices

✅ Do's

  • • Obtain written authorization before scanning
  • • Scan your own networks during maintenance windows
  • • Use appropriate timing templates (T3 or T4)
  • • Document scan scope and findings
  • • Keep nmap updated to latest version
  • • Save output with -oA for later analysis

❌ Don'ts

  • • Never scan networks without permission
  • • Don't use T5 (Insane) on production networks
  • • Avoid aggressive scans during business hours
  • • Don't scan critical infrastructure without approval
  • • Never ignore false positives without verification
  • • Don't skip legal and compliance reviews

Quick Command Reference

Quick scan (top 100 ports):
nmap -T4 -F 192.168.1.1
Intense scan with version detection:
nmap -T4 -A -v 192.168.1.1
Scan all TCP ports:
nmap -sS -p- -T4 192.168.1.1
Vulnerability scan:
nmap -sV --script vuln 192.168.1.1
Scan network range:
nmap -sn 192.168.1.0/24

⚖️ Legal Reminder

Unauthorized port scanning is illegal in many jurisdictions. This tool is intended for authorized security testing, network administration, and educational purposes only. Always obtain explicit written permission before scanning any network or system you don't own or have authority to test.

Frequently Asked Questions

Common questions about the Nmap Command Builder & Results Parser

Nmap (Network Mapper) is a free, open-source network scanner used to discover hosts and services on a network. It sends specially crafted packets and analyzes responses to determine open ports, running services, operating systems, and other network characteristics. Security professionals use it for network inventory, security auditing, and vulnerability assessment.

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⚠️ Security Notice

This tool is provided for educational and authorized security testing purposes only. Always ensure you have proper authorization before testing any systems or networks you do not own. Unauthorized access or security testing may be illegal in your jurisdiction. All processing happens client-side in your browser - no data is sent to our servers.

Nmap Command Builder & Results Parser - Free Online Tool | Inventive HQ