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

7,440 Views
6,845 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, Veracode, Checkmarx and others in Static Application Security Testing (SAST).

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

Buyer's Guide

Static Application Security Testing (SAST)

March 2026

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Helped 884,933 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) (9th)

Synopsys API Security Testi...

Average Rating

7.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Featured Reviews

Nithin-K

Technical Analyst at Hexaware Technologies Limited

Open source testing tool empowers manual activities and has room to improve integration and reporting features

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 Postman, so it needs improvement. There are limitations with authentication levels, particularly with form-based and cookie-based authentication. However, overall, we are satisfied with OWASP Zap as there are no major issues, and improving the scan engine could be beneficial. When comparing OWASP Zap and Burp Suite, the main difference besides pricing is that OWASP Zap has limitations with reporting levels and UI, which affects its reporting capabilities, whereas Burp Suite is already advancing with new AI features and scanning capabilities that OWASP Zap seems to be lacking.

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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…

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Quotes from Members

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

Pros

"Fuzzer and Java APIs help a lot with our custom needs."

"Stability-wise, I rate the solution a nine out of ten. I think it's stable enough. I don't see any crashes within the application, so its stability is high."

"Simple to use, good user interface."

"They offer free access to some other tools."

"It can be used effectively for internal auditing."

"It scans while you navigate, then you can save the requests performed and work with them later."

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

"The stability of the solution is very good."

More OWASP Zap pros

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

Cons

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

"The forced browse has been incorporated into the program and it is resource-intensive."

"OWASP should work on reducing false positives by using AI and ML algorithms. They should expand their capabilities for broader coverage of business logic flaws and complex issues."

"There's very little documentation that comes with OWASP Zap."

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

"The automated vulnerability assessments that the application performs needs to be simplified as well as diversified."

"I'd like to see a kind of feature where we can just track what our last vulnerability was and how it has improved or not. More reports that can have some kind of base-lining, I think that would be a good feature too. I'm not sure whether it can be achieved and implement but I think that would really help."

"There's very little documentation that comes with OWASP Zap."

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."

Pricing and Cost Advice

"This app is completely free and open source. So there is no question about any pricing."

"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 solution is open source and free."

"OWASP ZAP is a free tool provided by OWASP’s engineers and experts. There is an option to donate."

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

"The solution’s pricing is high."

"The tool is open source."

"OWASP Zap is free to use."

More OWASP Zap pricing and cost advice

Information not available

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884,933 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Computer Software Company

11%

University

Financial Services Firm

Manufacturing Company

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	21

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 ...

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What do you like most about OWASP Zap?

The best feature is the Zap HUD (Heads Up Display) because the customers can use the website normally. If we scan websites with automatic scanning, and the website has a web application firewall, i...

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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

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Comparisons

Acunetix vs OWASP Zap

Compared 13% of the time

SonarQube vs OWASP Zap

Compared 12% of the time

PortSwigger Burp Suite Professional vs OWASP Zap

Compared 8% of the time

Checkmarx One vs OWASP Zap

Compared 8% of the time

Veracode vs OWASP Zap

Compared 8% of the time

More OWASP Zap Competitors

Invicti vs Synopsys API Security Testing [EOL]

Compared 29% of the time

SonarQube vs Synopsys API Security Testing [EOL]

Compared 26% of the time

Aikido Security vs Synopsys API Security Testing [EOL]

Compared 20% of the time

Acunetix vs Synopsys API Security Testing [EOL]

Compared 15% of the time

Seeker Interactive vs Synopsys API Security Testing [EOL]

Compared 10% of the time

More Synopsys API Security Testing [EOL] Competitors

Product Reports

Buyer's Guide

OWASP Zap

March 2026

Download OWASP Zap product report

Buyer's Guide

Static Application Security Testing (SAST)

March 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)

March 2026

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