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OWASP Zap vs Synopsys API Security Testing [EOL] comparison

OWASP and Black Duck are both solutions in the Static Application Security Testing (SAST) category. Additionally, 88% of OWASP users are willing to recommend the solution, compared to 100% of Black Duck users who would recommend it.
OWASP Zap
Read 41 OWASP Zap reviews
  • 8,774 Views
  • 8,072 Comparison Views
88% willing to recommend
 

Comparison Buyer's Guide

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Executive Summary
We performed a comparison between OWASP Zap and Synopsys API Security Testing [EOL] based on real PeerSpot user reviews.

Find out what your peers are saying about SonarSource Sàrl, Checkmarx, Veracode and others in Static Application Security Testing (SAST).

DOWNLOAD THE COMPLETE REPORT
To learn more, read our detailed Static Application Security Testing (SAST) Report (Updated: May 2026).
Buyer's Guide
Static Application Security Testing (SAST)
May 2026
Download the complete report
Helped 902,417 peers since 2012

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

OWASP Zap
Average Rating
7.6
Reviews Sentiment
7.3
Number of Reviews
41
Ranking in other categories
Static Application Security Testing (SAST) (14th)
Synopsys API Security Testi...
Average Rating
7.0
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Featured Reviews

Amit Beniwal - PeerSpot reviewer
Amit Beniwal
Project Manager at Al Hassan LLC
Simplifies vulnerability discovery and has high quality support
There are areas for improvement with OWASP Zap, particularly in the alignment of vulnerabilities concerning CVSS scores. Sometimes, a vulnerability initially categorized as high severity may be reduced to medium or low over time after security patches are applied. This alignment with the present severity score and CVSS score could be improved.
Read full review
UmarQureshi - PeerSpot reviewer
UmarQureshi
Security Lead at a retailer with 10,001+ employees
Useful threat vectors, beneficial results, but implementation needed support
We are using Synopsys API Security Testing for scanning APIs for risks and vulnerabilities and to understand our posture before deployment within our business The most valuable features of Synopsys API Security Testing are the metrics, results, and threat vectors that it shares. I have been…
Read full review

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"It scans while you navigate, then you can save the requests performed and work with them later."
"One valuable feature of OWASP Zap is that it is simple to use."
"The most valuable feature is scanning the URL to drill down all the different sites."
"The community support that ZAP provides me, as an open source, provides me flexibility and is convenient to use."
"The reporting is quite intuitive, which gives you a clear indication of what kind of vulnerability you have that you can drill down on to gather more information."
"The solution has tightened our security and that of our clients who depend on it."
"The solution is scalable."
"We use the solution for security testing."
More OWASP Zap pros
"The technical support from Synopsys API Security Testing is amazing."
"The most valuable features of Synopsys API Security Testing are the metrics, results, and threat vectors that it shares."
 

Cons

"It would be ideal if I could try some pre-built deployment scenarios so that I don't have to worry about whether the configuration sector team is doing it right or wrong. That would be very helpful."
"The forced browse has been incorporated into the program and it is resource-intensive."
"The reporting feature could be more descriptive."
"While the solution can scale to a certain extent, it cannot scale a lot."
"There are too many false positives."
"Deployment is somewhat complicated."
"Right now, I can't give it off to a team and expect them to give me a report that I'm happy with."
"There isn't too much information about it online."
More OWASP Zap cons
"We haven't covered all the areas yet in our business. It's still being scaled up within the organization. We've probably covered 10 percent of the business. I don't think we've seen a proper ROI yet."
"The solution required us to use our team and we spoke to Synopsys API Security Testing's support to do the implementation. We use two people from our team for the implementation. and one person for maintenance."
 

Pricing and Cost Advice

"As Zap is free and open-source, with tons of features similar to those of commercial solutions, I would definitely recommend trying it out."
"It is open source, and we can scan freely."
"The tool is open-source."
"It is highly recommended as it is an open source tool."
"It's free. It's good for us because we don't know what the extent of our use will be yet. It's good to start with something free and easy to use."
"The solution’s pricing is high."
"OWASP ZAP is a free tool provided by OWASP’s engineers and experts. There is an option to donate."
"This is an open-source solution and can be used free of charge."
More OWASP Zap pricing and cost advice
Information not available
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Use our free recommendation engine to learn which Static Application Security Testing (SAST) solutions are best for your needs.
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902,417 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
10%
Financial Services Firm
9%
University
9%
Manufacturing Company
8%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise11
Large Enterprise22
No data available
 

Questions from the Community

Is OWASP Zap better than PortSwigger Burp Suite Pro?
OWASP Zap and PortSwigger Burp Suite Pro have many similar features. OWASP Zap has web application scanning available with basic security vulnerabilities while Burp Suite Pro has it available with ...
See all answers
What is your experience regarding pricing and costs for OWASP Zap?
OWASP might be cost-effective, however, people prefer to use the free edition available as open source.
See all answers
What needs improvement with OWASP Zap?
The improvement that has to be done for APIs focuses on manual activities where the feature exists, but it is not at the same level as what Burp Suite does with intercepting and tools such as Postm...
See all answers
Ask a question
Earn 20 points
 

Comparisons

PortSwigger Burp Suite Professional vs OWASP Zap Logo
PortSwigger Burp Suite Professional vs OWASP Zap
Compared 11% of the time
Acunetix vs OWASP Zap Logo
Acunetix vs OWASP Zap
Compared 10% of the time
SonarQube vs OWASP Zap Logo
SonarQube vs OWASP Zap
Compared 9% of the time
Veracode vs OWASP Zap Logo
Veracode vs OWASP Zap
Compared 8% of the time
Checkmarx One vs OWASP Zap Logo
Checkmarx One vs OWASP Zap
Compared 6% of the time
More OWASP Zap Competitors
Invicti vs Synopsys API Security Testing [EOL] Logo
Invicti vs Synopsys API Security Testing [EOL]
Compared 29% of the time
SonarQube vs Synopsys API Security Testing [EOL] Logo
SonarQube vs Synopsys API Security Testing [EOL]
Compared 26% of the time
Aikido Security vs Synopsys API Security Testing [EOL] Logo
Aikido Security vs Synopsys API Security Testing [EOL]
Compared 19% of the time
Acunetix vs Synopsys API Security Testing [EOL] Logo
Acunetix vs Synopsys API Security Testing [EOL]
Compared 17% of the time
More Synopsys API Security Testing [EOL] Competitors
 

Product Reports

Buyer's Guide
OWASP Zap
June 2026
OWASP Zap reportDownload OWASP Zap product report
Buyer's Guide
Static Application Security Testing (SAST)
May 2026
Synopsys API Security Testing [EOL] reportDownload Synopsys API Security Testing [EOL] product report
 

Overview

OWASP Zap is a free and open-source web application security scanner. 

The solution helps developers identify vulnerabilities in their web applications by actively scanning for common security issues. 

With its user-friendly interface and powerful features, Zap is a popular choice among developers for ensuring the security of their web applications.

OWASP

AppSec testing optimized for the needs of API developers
APIs provide open, flexible interfaces that enable applications and services to talk to each other. But these characteristics can also make it difficult to build secure software—and even more difficult for traditional AppSec tools to test it.

Black Duck
 

Sample Customers

1. Google 2. Microsoft 3. IBM 4. Amazon 5. Facebook 6. Twitter 7. LinkedIn 8. Netflix 9. Adobe 10. PayPal 11. Salesforce 12. Cisco 13. Oracle 14. Intel 15. HP 16. Dell 17. VMware 18. Symantec 19. McAfee 20. Citrix 21. Red Hat 22. Juniper Networks 23. SAP 24. Accenture 25. Deloitte 26. Ernst & Young 27. PwC 28. KPMG 29. Capgemini 30. Infosys 31. Wipro 32. TCS
Information Not Available
Buyer's Guide
Static Application Security Testing (SAST)
May 2026
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Find out what your peers are saying about SonarSource Sàrl, Checkmarx, Veracode and others in Static Application Security Testing (SAST). Updated: May 2026.
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902,417 professionals have used our research since 2012.
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We monitor all Static Application Security Testing (SAST) reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.