OWASP Zap vs Synopsys API Security Testing [EOL] comparison

Why PeerSpot?

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

9,677 Views
9,000 Comparison Views

88% willing to recommend

Synopsys API Security Testi...

Read 1 Synopsys API Security Testing [EOL] review

100% willing to recommend

OWASP Zap

Synopsys API Security Testi...

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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).

To learn more, read our detailed Static Application Security Testing (SAST) Report (Updated: September 2026).

Buyer's Guide

Static Application Security Testing (SAST)

September 2026

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Helped 914,351 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

Ranking in other categories

Static Application Security Testing (SAST) (15th)

Synopsys API Security Testi...

Average Rating

7.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Featured Reviews

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

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

"The solution enables a person to add the certificate and check the queries, to see if there are any that are undefined, so a person can have a list of the types of queries and can trace them."

"The community support that ZAP provides me, as an open source, provides me flexibility and is convenient to use."

"The product has improved our application security engagement, helps with our in-house review so we sometimes don't need an external third-party tester, and once we get it from OWASP Zap, we have an idea of the inherent vulnerabilities in the application, which is a plus to save cost and improve our application accuracy practice."

"The product helps users to scan and fix vulnerabilities in the pipeline."

"OWASP is definitely in the top three as a tool that we would probably recommend to our team, as a frequent users' tool, however, I don't believe we have any kind of a formal relationship with the company."

"The most valuable feature is the spidering because, being a security person, it is very important for me to know each and every section of that application, so we cannot afford to miss any single web page or any single link on a particular website."

"They offer free access to some other tools."

"It has evolved over the years and recently in the last year they have added, HUD (Heads Up Display)."

More OWASP Zap pros

"The most valuable features of Synopsys API Security Testing are the metrics, results, and threat vectors that it shares."

"The technical support from Synopsys API Security Testing is amazing."

Cons

"The documentation needs to be improved because I had to learn everything from watching YouTube videos."

"OWASP Zap could benefit from a noise cancellation feature like that of Burp Suite Professional, where AI helps reduce certain non-critical findings."

"There are areas for improvement with OWASP Zap, particularly in the alignment of vulnerabilities concerning CVSS scores."

"I would like to see a version of “repeater” within OWASP ZAP, a tool capable of sending from one to 1000 of the same requests, but with preselected modified fields, changing from a predetermined word list, or manually created."

"The documentation is lacking and out-of-date, it really needs more love."

"Without any support, we are in a black hole sometimes."

"The computers perform somewhat slowly when loading a large number of queries into memory."

"The solution is unable to customize reports."

More OWASP Zap cons

"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."

"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."

Pricing and Cost Advice

"It is open source, and we can scan freely."

"It's free and open, currently under the Apache 2 license. If ZAP does what you need it to do, selling a free solution is a very easy."

"The solution’s pricing is high."

"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."

"This is an open-source solution and can be used free of charge."

"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 highly recommended as it is an open source tool."

"We have used the freeware version. I believe Zap only has freeware."

More OWASP Zap pricing and cost advice

Information not available

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Top Industries

By visitors reading reviews

Computer Software Company

10%

University

Comms Service Provider

Financial Services Firm

No data available

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	11
Large Enterprise	22

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

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Comparisons

PortSwigger Burp Suite Professional vs OWASP Zap

Compared 11% of the time

Acunetix vs OWASP Zap

Compared 9% of the time

Veracode vs OWASP Zap

Compared 7% of the time

Qualys Web Application Scanning vs OWASP Zap

Compared 6% of the time

SonarQube vs OWASP Zap

Compared 5% of the time

More OWASP Zap Competitors

Invicti vs Synopsys API Security Testing [EOL]

Compared 26% of the time

SonarQube vs Synopsys API Security Testing [EOL]

Compared 24% of the time

Aikido Security vs Synopsys API Security Testing [EOL]

Compared 15% of the time

Acunetix vs Synopsys API Security Testing [EOL]

Compared 13% of the time

Seeker Interactive vs Synopsys API Security Testing [EOL]

Compared 9% of the time

More Synopsys API Security Testing [EOL] Competitors

Product Reports

Buyer's Guide

OWASP Zap

September 2026

Download OWASP Zap product report

Buyer's Guide

Static Application Security Testing (SAST)

September 2026

Synopsys API Security Testing [EOL] report

Download 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)

September 2026

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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.