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OWASP ZAP

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Open-source web application security scanner

Free, no paid tier
Free Security Testing & QA Developer Tools
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Reviews on G2
14 reviews tracked

The Bottom Line

Price
Free, no paid tier. Compare plans

Key facts

  • OWASP ZAP is a free security testing tool for finding web application vulnerabilities
  • It scans for security issues with automated and manual testing capabilities
  • Completely free and open-source

Pros

  • Free security scanner
  • Good for web apps
  • Active community
  • CI/CD integration
  • Open source

Cons

  • Learning curve
  • False positives
  • Performance varies
  • UI dated
  • Configuration needed

What is OWASP ZAP?

Editorial review
OWASP ZAP scans web applications for vulnerabilities. Open-source security testing-the scanner security testing often starts with. The tool is free and capable. The community maintains it. The learning is valuable. Security testing often includes ZAP for accessible vulnerability scanning.
how we evaluate Source zaproxy.org ↗

Ratings Across the Web

4.7 (14 reviews)

OWASP ZAP holds an aggregate rating of 4.7 out of 5 from 14 reviews across G2, last checked August 31, 2026.

G2 14 reviews
4.7/5

Ratings aggregated from independent review platforms. Learn more

Key Features

  • Web security scanner
  • Penetration testing
  • Active scanning
  • API scanning
  • Open source
  • Automation

Pricing Plans

Pricing checked Sep 30, 2026

OWASP ZAP plans and prices, checked September 2026
PlanPriceDetails
Free Popular

$0

Open source

  • DAST
  • API scanning
  • CI/CD
+1 more
  • Automation
View full pricing

Is OWASP ZAP worth the price?

Great value

OWASP ZAP's pricing is exceptionally generous, being entirely free.

There are no dollar amounts to compare, as it's an open-source project. This makes it an incredibly fair and accessible option for anyone needing web application security scanning.

Full OWASP ZAP pricing: every plan, hidden costs and alternatives

Reviews

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4.7/5

Across 14 verified user reviews on G2

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Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

All OWASP ZAP alternatives 6+ tools ranked, pricing + verdict per pick OWASP ZAP vs Prisma Cloud Head-to-head: features, pricing, who wins OWASP ZAP vs Burp Suite Head-to-head: features, pricing, who wins OWASP ZAP vs Checkmarx Head-to-head: features, pricing, who wins

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OWASP ZAP FAQ

How does OWASP ZAP help with web application security?

OWASP ZAP is an open-source web application security scanner that identifies vulnerabilities in web applications. It is often used as a starting point for security testing to discover potential weaknesses.

What kind of user benefits most from OWASP ZAP?

OWASP ZAP is best suited for developers, security professionals, and QA teams involved in testing web applications. Its capabilities are particularly valuable for those needing to integrate security scanning into their development workflows.

How is OWASP ZAP priced?

OWASP ZAP is free to use, as it is an open-source tool. There are no paid plans required to access its features for web application security scanning.

What are the main trade-offs when using OWASP ZAP?

A primary trade-off with OWASP ZAP is its learning curve, which can require an initial time investment. Users may also encounter false positives and a dated user interface, and performance can vary depending on the application being scanned.

Can OWASP ZAP be integrated into continuous integration/continuous delivery pipelines?

Yes, OWASP ZAP supports CI/CD integration, allowing security scanning to be automated within development and deployment workflows. This helps ensure that web applications are continuously checked for vulnerabilities.

How does OWASP ZAP compare to Burp Suite?

OWASP ZAP is an open-source and free web application security scanner with an active community, while Burp Suite is a commercial competitor. Both tools are used for vulnerability scanning, but ZAP's open-source nature makes it accessible without a cost.

Source: zaproxy.org

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