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Contrast Security Assess vs OWASP Zap comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 8, 2024

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

Contrast Security Assess
Ranking in Static Application Security Testing (SAST)
26th
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
12
Ranking in other categories
Application Security Tools (31st)
OWASP Zap
Ranking in Static Application Security Testing (SAST)
14th
Average Rating
7.6
Reviews Sentiment
7.3
Number of Reviews
41
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2026, in the Static Application Security Testing (SAST) category, the mindshare of Contrast Security Assess is 1.3%, up from 0.5% compared to the previous year. The mindshare of OWASP Zap is 2.9%, down from 5.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Static Application Security Testing (SAST) Mindshare Distribution
ProductMindshare (%)
OWASP Zap2.9%
Contrast Security Assess1.3%
Other95.8%
Static Application Security Testing (SAST)
 

Featured Reviews

Eucharia Okafor - PeerSpot reviewer
DevSecOps Engineer at a tech vendor with 1,001-5,000 employees
Continuous in-app security has transformed our development workflow and has reduced manual checks
Contrast Security Assess changes how the team thinks about security. Instead of us waiting for a security audit at the end of any sprint, vulnerabilities surface as developers are writing and testing code. That shift is significant because fixing a bug in development costs more than fixing it later. It captures everything right there and remediates it because it catches vulnerability and remediates immediately while the application is running. It improves our collaboration between development and security teams, as developers get clear actionable findings immediately. We get continuous visibility into our application risk posture. Ultimately, it helps us to shift fast and save money, which is usually a trade-off, but Contrast Security Assess makes both possible. The feature that stands out most to me in Contrast Security Assess is the ability to capture vulnerability while the application is running. Another standout feature is the real-time detection that finds vulnerabilities as code runs. It has fewer false positives and works continuously in the application; you install it and it is there. It captures issues during development quickly and is easily integrated with a CI/CD pipeline, especially if you are using GitLab or GitHub. The real-time detection feature of Contrast Security Assess helps us very well compared to traditional SAST tools. Traditional tools scan from the outside and guess where problems might be. Contrast Security Assess works from the inside because it is embedded into the application. The agent lives inside the running application, allowing it to see exactly what is happening in real-time. This means we are getting accurate alerts instead of a long list of potential issues that require manual investigation. When it comes to the CI/CD pipeline, Contrast Security Assess really shines for our daily work, as it plugs directly into tools like Jenkins, GitHub, or Azure DevOps. When a developer commits code and triggers a build, Contrast Security Assess is already testing it in the background. If there is any vulnerability, the pipeline automatically flags or stops the application before bad code reaches production. This means security becomes everyone's responsibility, not just the security team's, and it gives us real-time, accurate security that fits into how our team already works.
Amit Beniwal - PeerSpot reviewer
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.

Quotes from Members

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

Pros

"The solution is very accurate in identifying vulnerabilities. In cases where we are performing application assessment using Contrast Assess, and also using legacy application security testing tools, Contrast successfully identifies the same vulnerabilities that the other tools have identified but it also identifies significantly more. In addition, it has visibility into application components that other testing methodologies are unaware of."
"One of the key takeaways is that in order to have a secure application, you cannot rely on just the pentest, vulnerability assessments, and the periodicity of the reviews; you need the real-time feedback on that, and Contrast Assess offers that."
"No other tool does the runtime scanning like Contrast does. Other static analysis tools do static scanning, but Contrast is runtime analysis, when the routes are exercised. That's when the scan happens. This is a tool that has a very unique capability compared to other tools. That's what I like most about Contrast, that it's runtime."
"Contrast was a very complete solution; it met all of our technical requirements and it was really the only IAST product that felt like a real product."
"This has changed the way that developers are looking at usage of third-party libraries, upfront. It's changing our model of development and our culture of development to ensure that there is more thought being put into the usage of third-party libraries."
"The accuracy of the solution in identifying vulnerabilities is better than any other product we've used, far and away. In our internal comparisons among different tools, Contrast consistently finds more impactful vulnerabilities, and also identifies vulnerabilities that are nearly guaranteed to be there, meaning that the chance of false positives is very low."
"We use the Contrast OSS feature that allows us to look at third-party, open-source software libraries, because it has a cool interface where you can look at all the different libraries. It has some really cool additional features where it gives us how many instances in which something has been used... It tells us it has been used 10 times out of 20 workloads, for example. Then we know for sure that OSS is being used."
"From a percentage perspective, somewhere around 90 percent of the time we used to spend has been given back to our team, because the false positive rate with Contrast is less than 5 percent."
"I consider OWASP Zap to be the most effective solution overall; being open source allows integration with other systems via OWASP Zap APIs."
"OWASP Zap is a good tool, one of my favorites for a long time, and I would recommend it."
"The community edition updates services regularly. They add new vulnerabilities into the scanning list."
"It's great that we can use it with Portswigger Burp."
"One valuable feature of OWASP Zap is that it is simple to use."
"Zap is an open-source and sophisticated product that not only saves us money but also provides us with a good amount of information."
"It scans while you navigate, then you can save the requests performed and work with them later."
"Simple to use, good user interface."
 

Cons

"Contrast's ability to support upgrades on the actual agents that get deployed is limited. Our environment is pretty much entirely Java. There are no updates associated with that. You have to actually download a new version of the .jar file and push that out to your servers where your app is hosted. That can be quite cumbersome from a change-management perspective."
"The solution should provide more details in the section where it shows that third-party libraries have CVEs or some vulnerabilities."
"I would like to see them come up with more scanning rules."
"Contrast Security Assess covers a wide range of applications like .NET Framework, Java, PSP, Node.js, etc. But there are some like Ubuntu and the .NET Core which are not covered. They have it in their roadmap to have these agents. If they have that, we will have complete coverage."
"Regarding the solution's OSS feature, the one drawback that we do have is that it does not have client-side support. We'll be missing identification of libraries like jQuery or JavaScript, and such, that are client-side."
"The product's retesting part needs improvement. The tool also needs improvement in the suggestions provided for fixing vulnerabilities. It relies more on documentation rather than on quick fixes."
"The out-of-the-box reporting could be improved. We need to write our own APIs to make the reporting more robust."
"Contrast Security Assess could improve in the reporting and the dashboard experience."
"OWASP Zap could benefit from a noise cancellation feature like that of Burp Suite Professional, where AI helps reduce certain non-critical findings."
"It would be beneficial to enhance the algorithm to provide better summaries of automatic scanning results."
"There are too many false positives."
"The ability to search the internet for other use cases and to use the solution to make applications more secure should be addressed."
"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."
"As security evolves, we would like DevOps built into it. As of now, Zap does not provide this."
"It would be nice to have a solid SQL injection engine built into Zap."
"Zap could improve by providing better reports for security and recommendations for the vulnerabilities."
 

Pricing and Cost Advice

"It's a tiered licensing model. The more you buy, as you cross certain quantity thresholds, the pricing changes. If you have a smaller environment, your licensing costs are going to be different than a larger environment... The licensing is primarily per application. An application can be as many agents as you need. If you've got 10 development servers and 20 production servers and 50 QA servers, all of those agents can be reporting as a single application that utilizes one license."
"You only get one license for an application. Ours are very big, monolithic applications with millions of lines of code. We were able to apply one license to one monolithic application, which is great. We are happy with the licensing. Pricing-wise, they are industry-standard, which is fine."
"The solution is expensive."
"The good news is that the agent itself comes in two different forms: the unlicensed form and the licensed form. Unlicensed gives use of that software composition analysis for free. Thereafter, if you apply a license to that same agent, that's when the instrumentation takes hold. So one of my suggestions is to do what we're doing: Deploy the agent to as many applications as possible, with just the SCA feature turned on with no license applied, and then you can be more choosy and pick which teams will get the license applied."
"I like the per-application licensing model... We just license the app and we look at different vulnerabilities on that app and we remediate within the app. It's simpler."
"The product's pricing is low. I would rate it a two out of ten."
"For what it offers, it's a very reasonable cost. The way that it is priced is extremely straightforward. It works on the number of applications that you use, and you license a server. It is something that is extremely fair, because it doesn't take into consideration the number of requests, etc. It is only priced based on the number of onboarded applications. It suits our model as well, because we have huge traffic. Our number of applications is not that large, so the pricing works great for us."
"This is an open-source solution and can be used free of charge."
"It is open source, and we can scan freely."
"The solution’s pricing is high."
"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."
"OWASP ZAP is a free tool provided by OWASP’s engineers and experts. There is an option to donate."
"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 app is completely free and open source. So there is no question about any pricing."
"This solution is open source and free."
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Top Industries

By visitors reading reviews
Financial Services Firm
16%
Manufacturing Company
11%
Construction Company
9%
Comms Service Provider
9%
Computer Software Company
10%
Financial Services Firm
9%
University
9%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise3
Large Enterprise7
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise11
Large Enterprise22
 

Questions from the Community

Ask a question
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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 ...
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.
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...
 

Also Known As

Contrast Assess
No data available
 

Overview

 

Sample Customers

Williams-Sonoma, Autodesk, HUAWEI, Chromeriver, RingCentral, Demandware.
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
Find out what your peers are saying about Contrast Security Assess vs. OWASP Zap and other solutions. Updated: June 2026.
902,270 professionals have used our research since 2012.