Nmap

Network discovery and security auditing tool

⭐ 4.8/5 (12000 reviews)

About Nmap

Nmap is a free and open-source network scanner used for network discovery, security auditing, and port scanning by security professionals worldwide.

Key Features

  • Host discovery and port scanning
  • Service and version detection
  • OS fingerprinting
  • Nmap Scripting Engine (NSE)
  • Output in multiple formats
  • Zenmap GUI available

✅ Pros

  • Industry standard network scanner
  • Extremely versatile
  • Free and open-source
  • NSE scripting is powerful

❌ Cons

  • Command-line focused
  • Can trigger IDS alerts
  • Scan speed vs. accuracy tradeoffs
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