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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

"It is a stable solution...Contrast Security Assess is one of the first players in this market, so they have experience and customers, especially abroad. Overall, it's a good product."
"When we access the application, it continuously monitors and detects vulnerabilities."
"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."
"Assess has an excellent API interface to pull APIs."
"The time it saves us is on the order of one US-based FTE, a security person at an average pay level, and at a bare minimum Contrast helps us like that resource; it's like having a CISSP guy, in the US, on our payroll."
"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."
"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."
"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."
"OWASP Zap is straightforward to use. If someone doesn't have the budget for tools like Burp Suite, OWASP Zap is an excellent alternative."
"We use OWASP Zap for web application security scanning."
"The community edition updates services regularly. They add new vulnerabilities into the scanning list."
"As Zap is free and open-source, with tons of features similar to those of commercial solutions, I would definitely recommend trying it out."
"One valuable feature of OWASP Zap is that it is simple to use."
"The community support that ZAP provides me, as an open source, provides me flexibility and is convenient to use."
"The solution is scalable."
"The valuable features are that it's very simple to use and the user interface is very good, particularly for beginners so they can start the application easily."
 

Cons

"Personalization of the board and how to make it appealing to an organization is something that could be done on their end. The reports could be adaptable to the customer's preferences."
"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."
"I think there was activity underway to support the centralized configuration control. There are ways to do it, but I think they were productizing more of that."
"To instrument an agent, it has to be running on a type of application technology that the agent recognizes and understands. It's excellent when it works. If we're using an application that is using an unsupported technology, then we can't instrument it at all. We do use PHP and Contrast presently doesn't support that, although it's on their roadmap. My primary hurdle is that it doesn't support all of the technologies that we use."
"The solution should provide more details in the section where it shows that third-party libraries have CVEs or some vulnerabilities."
"Their level of support and troubleshooting for the product is limited because of how they handle troubleshooting. It's done through a log file that's very cumbersome to work with."
"They stopped their support for a short period. They've recently started to come back again. In the early days, support was much better."
"The disadvantage of Zap is that we're unable to customize reports as it only has a single standard format."
"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."
"It would be nice to have a solid SQL injection engine built into Zap."
"OWASP Zap needs to extend to mobile application testing."
"We have had stability issues a few times."
"I would recommend this product to people although I think it is very difficult to deploy and we also have issues with maintenance."
"There's very little documentation that comes with OWASP Zap."
 

Pricing and Cost Advice

"The solution is expensive."
"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."
"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."
"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 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."
"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."
"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."
"The tool is open source."
"This solution is open source and free."
"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."
"We have used the freeware version. I believe Zap only has freeware."
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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.
900,747 professionals have used our research since 2012.