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Head-to-head · Web Application Security Scanners

OWASP ZAP vs Holm Security Web Application Security

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score OWASP ZAP #4 in Web Application Security Scanners 9.1/10 Free plan Free plan✓ 0 of 5 features Visit OWASP ZAP
Holm Security Web Application Security #8 in Web Application Security Scanners 8.7/10 Pricing on request ✓ 0 of 5 features Visit Holm Security

OWASP ZAP leads on 1 check, Holm Security Web Application Security on 0, and 0 are even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreOWASP ZAP · 9.1/10
  • Free planonly OWASP ZAP

OWASP ZAP scores higher on our rubric for web application security scanners: 9.1 against 8.7 out of 10; our editors rank them #4 and #8.

OWASP ZAP offers free plan; Holm Security Web Application Security doesn't.

OWASP ZAP is the better fit for teams wanting a free, extensible scanner. Holm Security Web Application Security is the better fit for hybrid AppSec and attack-surface programs.

  • OWASP ZAP fits best

    Teams wanting a free, extensible scanner

  • Holm Security Web Application Security fits best

    Hybrid AppSec and attack-surface programs

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Side by side

Feature OWASP ZAP 9.1/10 Visit ↗ Holm Security Web Application Security 8.7/10 Visit ↗
At a glance
Editor score 9.1 8.7
Ranking #4 in Web Application Security Scanners #8 in Web Application Security Scanners
Best for Teams wanting a free, extensible scanner Hybrid AppSec and attack-surface programs
Pricing model Free Paid
Starting price Free plan Pricing on request
Free plan ✓ (best) —
Free trial — —
Deployment Self-hosted, Desktop, Browser extension Cloud, Self-hosted
Platforms Windows, macOS, Linux Web
Support Community, Docs Phone, Tickets, Docs
Integrations 2 integrations 15 integrations
Built for Solo, Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features OWASP ZAP 0/5 · Holm Security Web Application Security 0/5
Authenticated scans Not checked yet Not checked yet
JavaScript crawling Not checked yet Not checked yet
Scheduled scans Not checked yet Not checked yet
Compliance reports Not checked yet Not checked yet
API scanning Not checked yet Not checked yet
Specs
Deployment Not checked yet Not checked yet
Target limit Not checked yet Not checked yet
Our review
Pros
  • Active and passive scanning with traditional and browser-based spiders
  • Imports OpenAPI, GraphQL, Postman, and SOAP definitions
  • Supports Docker, GitHub Actions, YAML automation, and add-ons
  • Combines authenticated DAST, SCA, and OWASP Top 10 assessment
  • Scans JavaScript, REST, SOAP, and CMS-based applications
  • Supports cloud, on-premises, CI/CD, SIEM, and ticketing workflows
Cons
  • Self-hosted deployment requires local or team-managed infrastructure
  • Free open-source operation may require more internal security expertise
  • Enterprise workflow depth is narrower than its scanning and automation scope
  • Pricing requires a sales quote
  • No free plan is available
  • Broad coverage may exceed the needs of narrow scanning programs
Our verdict

OWASP ZAP is a free, open-source web application security scanner and penetration-testing proxy for developers, testers, and security professionals. It supports interactive work through a desktop application as well as automated scanning…

Read the review →

Holm Security Web Application Security is a vulnerability assessment service for organizations testing internet-facing and local web applications. It covers authenticated and unauthenticated scanning, with Dynamic Application Security…

Read the review →
  1. OWASP ZAPWeb Application Security Scanners 9.1Free plan
  2. Holm Security Web Application SecurityWeb Application Security Scanners 8.7Pricing on request

Strengths and trade-offs

  • OWASP ZAP — where it wins

    • Active and passive scanning with traditional and browser-based spiders
    • Imports OpenAPI, GraphQL, Postman, and SOAP definitions
    • Supports Docker, GitHub Actions, YAML automation, and add-ons

    Where it doesn't

    • Self-hosted deployment requires local or team-managed infrastructure
    • Free open-source operation may require more internal security expertise
    • Enterprise workflow depth is narrower than its scanning and automation scope

  • Holm Security Web Application Security — where it wins

    • Combines authenticated DAST, SCA, and OWASP Top 10 assessment
    • Scans JavaScript, REST, SOAP, and CMS-based applications
    • Supports cloud, on-premises, CI/CD, SIEM, and ticketing workflows

    Where it doesn't

    • Pricing requires a sales quote
    • No free plan is available
    • Broad coverage may exceed the needs of narrow scanning programs

More comparisons

All web application security scanners comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update