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Head-to-head · Port Scanner Software

Nmap vs RustScan

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score Nmap #1 in Port Scanner Software 9.4/10 Free plan Free plan✓ 0 of 4 features Visit Nmap
RustScan #8 in Port Scanner Software 8.4/10 Free plan Free plan✓ 2 of 4 features Visit RustScan

Nmap leads on 0 checks, RustScan on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreNmap · 9.4/10
  • Free planboth
  • Most featuresRustScan · 2 of 4

Nmap scores higher on our rubric for port scanner software: 9.4 against 8.4 out of 10; our editors rank them #1 and #8.

On deployment, RustScan gives you Cli where Nmap offers Desktop.

Nmap is the better fit for broad, mature free scanning across major platforms. RustScan is the better fit for fast Nmap-assisted network reconnaissance.

  • Nmap fits best

    Broad, mature free scanning across major platforms

  • RustScan fits best

    Fast Nmap-assisted network reconnaissance

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Side by side

Feature Nmap 9.4/10 Visit ↗ RustScan 8.4/10 Visit ↗
At a glance
Editor score 9.4 8.4
Ranking #1 in Port Scanner Software #8 in Port Scanner Software
Best for Broad, mature free scanning across major platforms Fast Nmap-assisted network reconnaissance
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Desktop, Self-hosted Self-hosted, Desktop, Mobile
Platforms Windows, macOS, Linux Windows, macOS, Linux, Android
Support Docs Community, Docs
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market
Features Nmap 0/4 · RustScan 2/4
Service detection Not checked yet ✓ (best)
OS detection Not checked yet ✓ (best)
Scheduled scans Not checked yet Not checked yet
API access Not checked yet Not checked yet
Specs
Deployment Desktop Cli
Scan scope Not checked yet Network
Export formats Not checked yet greppable text
Our review
Pros
  • Comprehensive TCP and UDP scanning with service and OS detection
  • Zenmap adds profiles, result comparison, history, and topology views
  • Free, open-source coverage across Windows, macOS, and Linux
  • High-speed TCP and UDP scanning with adaptive tuning
  • Supports IPv6, CIDR ranges, files, and configurable port lists
  • Passes discovered ports to Nmap for deeper analysis
Cons
  • Primarily command-line operated, which can increase the learning curve
  • No built-in AI features
  • OEM redistribution or embedding requires a separate license
  • Command-line deployment requires terminal-based workflows
  • Windows use is documented through Docker rather than native support
  • Service and OS detection depend on Nmap passthrough
Our verdict

Nmap is a free, open-source network discovery and security auditing tool for network and security professionals. It identifies hosts, open TCP and UDP ports, services and versions, operating systems, device types, and network paths. Its…

Read the review →

RustScan is an open-source command-line port scanner for penetration testers, security researchers, and network administrators. It scans hosts, IP addresses, and CIDR ranges, with support for IPv6, configurable port lists and ranges,…

Read the review →
  1. NmapPort Scanner Software 9.4Free plan
  2. RustScanPort Scanner Software 8.4Free plan

Strengths and trade-offs

  • Nmap — where it wins

    • Comprehensive TCP and UDP scanning with service and OS detection
    • Zenmap adds profiles, result comparison, history, and topology views
    • Free, open-source coverage across Windows, macOS, and Linux

    Where it doesn't

    • Primarily command-line operated, which can increase the learning curve
    • No built-in AI features
    • OEM redistribution or embedding requires a separate license

  • RustScan — where it wins

    • High-speed TCP and UDP scanning with adaptive tuning
    • Supports IPv6, CIDR ranges, files, and configurable port lists
    • Passes discovered ports to Nmap for deeper analysis

    Where it doesn't

    • Command-line deployment requires terminal-based workflows
    • Windows use is documented through Docker rather than native support
    • Service and OS detection depend on Nmap passthrough
  • Nmap9.4/10 · Free plan

    A mature, broad port scanner with deep command-line capabilities and useful companion tools.

    Visit NmapFull verdict →
  • RustScan8.4/10 · Free plan

    A free, open-source CLI scanner for rapid reconnaissance and Nmap-based analysis.

    Visit RustScanFull verdict →

More comparisons

All port scanner software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update