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Head-to-head · Vulnerability Scanner Software

OWASP ZAP vs Intruder

  • Updated Sep 2026
  • Both researched from official sources
  • 2 checks side by side
OWASP ZAP #7 in Vulnerability Scanner Software —/10 Free plan Free plan✓ 0 of 3 features Visit OWASP ZAP
Higher score Intruder #8 in Vulnerability Scanner Software 6.3/10 Free plan · 14-day trial Free plan✓ 1 of 3 features Visit Intruder

OWASP ZAP leads on 0 checks, Intruder on 1, and 1 is even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreIntruder · 6.3/10
  • Free planboth
  • Most featuresIntruder · 1 of 3

Our editors rank OWASP ZAP at #7 and Intruder at #8 for vulnerability scanner software; OWASP ZAP has no rubric score yet (facts researched, not yet scored), so the checks below decide.

Intruder offers continuous scanning; OWASP ZAP doesn't publish it.

OWASP ZAP is the better fit for developers seeking a free, extensible web scanner. Intruder is the better fit for teams scanning external assets, endpoints, and cloud.

  • OWASP ZAP fits best

    Developers seeking a free, extensible web scanner

  • Intruder fits best

    Teams scanning external assets, endpoints, and cloud

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. It never changes our verdict. How we rank.

Side by side

Feature OWASP ZAP —/10 Visit ↗ Intruder 6.3/10 Visit ↗
At a glance
Editor score — 6.3
Ranking #7 in Vulnerability Scanner Software #8 in Vulnerability Scanner Software
Best for Developers seeking a free, extensible web scanner Teams scanning external assets, endpoints, and cloud
Pricing model Free Free plan + paid
Starting price Not published Not published
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted, Desktop, Browser extension Cloud
Platforms Windows, macOS, Linux Web, Windows, macOS, Linux
Support Community, Docs Live chat, Email, Docs
Integrations 2 integrations 17 integrations
Built for Solo, Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features OWASP ZAP 0/3 · Intruder 1/3
Authenticated scans Not published Not published
Continuous scanning Not published ✓ (best)
Report exports Not published Not published
Specs
Scan targets Not published Not published
Deployment Not published Not published
Asset limit Not published Not published
Our review
Pros
  • Combines active and passive scanning with several spidering methods
  • Supports authenticated web scans and OpenAPI, Swagger, and GraphQL scanning
  • REST API, YAML automation, Docker scans, and add-ons support extensibility
  • Scans public assets, internal devices, web apps, APIs, cloud, and container images
  • Supports authenticated scans, scheduled checks, and remediation verification
  • Connects with cloud, ticketing, collaboration, and SIEM tools
Cons
  • Self-hosted deployment means teams run the scanner in their own environment
  • Listed integrations are limited to Docker and GitHub Actions
  • Support channels are community and documentation
  • Free plan excludes authenticated web application scanning
  • Internal scans require an agent on Windows, macOS, or Linux devices
  • PCI DSS alignment does not make Intruder a PCI ASV
Our verdict

OWASP ZAP is a free, open-source tool for finding vulnerabilities in web applications. It is aimed at developers, testers, and security specialists who want to inspect traffic and scan web applications, including authenticated applications…

Read the review →

Intruder is a vulnerability management platform for security, IT, and compliance teams that need to scan assets across multiple environments. It covers public IP addresses, domains and subdomains, internal Windows, macOS and Linux devices,…

Read the review →
  1. OWASP ZAPVulnerability Scanner Software —Free plan
  2. IntruderVulnerability Scanner Software 6.3Free plan · 14-day trial

Strengths and trade-offs

  • OWASP ZAP — where it wins

    • Combines active and passive scanning with several spidering methods
    • Supports authenticated web scans and OpenAPI, Swagger, and GraphQL scanning
    • REST API, YAML automation, Docker scans, and add-ons support extensibility

    Where it doesn't

    • Self-hosted deployment means teams run the scanner in their own environment
    • Listed integrations are limited to Docker and GitHub Actions
    • Support channels are community and documentation

  • Intruder — where it wins

    • Scans public assets, internal devices, web apps, APIs, cloud, and container images
    • Supports authenticated scans, scheduled checks, and remediation verification
    • Connects with cloud, ticketing, collaboration, and SIEM tools

    Where it doesn't

    • Free plan excludes authenticated web application scanning
    • Internal scans require an agent on Windows, macOS, or Linux devices
    • PCI DSS alignment does not make Intruder a PCI ASV
  • OWASP ZAP—/10 · Free plan

    A free, extensible web scanner for developers who can run and automate it themselves.

    Visit OWASP ZAPFull verdict →
  • Intruder6.3/10 · Free plan · 14-day trial

    A broad scanner for teams that need visibility across external, internal, application, and cloud assets.

    Visit IntruderFull verdict →

More comparisons

All vulnerability scanner software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026