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Head-to-head · Web Application Security Scanners

OWASP ZAP vs Astra Security

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks 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
Astra Security #7 in Web Application Security Scanners 8.8/10 Free plan · 7-day trial Free planFree trial✓ 5 of 5 features Visit Astra Security

OWASP ZAP leads on 0 checks, Astra Security on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreOWASP ZAP · 9.1/10
  • Free planboth
  • Free trialonly Astra Security
  • Most featuresAstra Security · 5 of 5

OWASP ZAP scores higher on our rubric for web application security scanners: 9.1 against 8.8 out of 10; our editors rank them #4 and #7.

OWASP ZAP is the better fit for teams wanting a free, extensible scanner. Astra Security is the better fit for small teams wanting affordable cloud scanning.

  • OWASP ZAP fits best

    Teams wanting a free, extensible scanner

  • Astra Security fits best

    Small teams wanting affordable cloud scanning

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Side by side

Feature OWASP ZAP 9.1/10 Visit ↗ Astra Security 8.8/10 Visit ↗
At a glance
Editor score 9.1 8.8
Ranking #4 in Web Application Security Scanners #7 in Web Application Security Scanners
Best for Teams wanting a free, extensible scanner Small teams wanting affordable cloud scanning
Pricing model Free Free plan + paid
Starting price Free plan $69/mo
Free plan ✓ ✓
Free trial — 7 days
Deployment Self-hosted, Desktop, Browser extension Cloud
Platforms Windows, macOS, Linux Web
Integrations 2 integrations 7 integrations
Features OWASP ZAP 0/5 · Astra Security 5/5
Authenticated scans Not checked yet ✓ (best)
JavaScript crawling Not checked yet ✓ (best)
Scheduled scans Not checked yet ✓ (best)
Compliance reports Not checked yet ✓ (best)
API scanning Not checked yet ✓ (best)
Specs
Deployment Not checked yet Cloud
Target limit Not checked yet 1 targets
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
  • Authenticated scanning for login-protected applications
  • JavaScript, REST, SOAP, and GraphQL API scanning
  • CI/CD, compliance, remediation, and rescan capabilities
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
  • Scanner Lite is limited to one target
  • Scanner Lite includes three monthly vulnerability scans
  • No open-source deployment option
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 →

Astra Security is a cloud-based SaaS security platform for engineering, security, DevOps, and compliance teams. Its DAST scanner assesses web applications and APIs, including applications behind login walls and JavaScript-heavy single-page…

Read the review →
  1. OWASP ZAPWeb Application Security Scanners 9.1Free plan
  2. Astra SecurityWeb Application Security Scanners 8.8Free plan · 7-day trial

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

  • Astra Security — where it wins

    • Authenticated scanning for login-protected applications
    • JavaScript, REST, SOAP, and GraphQL API scanning
    • CI/CD, compliance, remediation, and rescan capabilities

    Where it doesn't

    • Scanner Lite is limited to one target
    • Scanner Lite includes three monthly vulnerability scans
    • No open-source deployment option

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