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OWASP Zap vs Qualys Web Application Scanning comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jan 18, 2026

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
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
Qualys Web Application Scan...
Ranking in Static Application Security Testing (SAST)
11th
Average Rating
7.6
Reviews Sentiment
6.3
Number of Reviews
40
Ranking in other categories
Application Security Tools (15th)
 

Mindshare comparison

As of June 2026, in the Static Application Security Testing (SAST) category, the mindshare of OWASP Zap is 2.9%, down from 5.1% compared to the previous year. The mindshare of Qualys Web Application Scanning is 1.9%, down from 2.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Static Application Security Testing (SAST) Mindshare Distribution
ProductMindshare (%)
Qualys Web Application Scanning1.9%
OWASP Zap2.9%
Other95.2%
Static Application Security Testing (SAST)
 

Q&A Highlights

MK
Software Test Engineer at a tech company with 501-1,000 employees
Jan 23, 2020
 

Featured Reviews

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.
AnkitSharma13 - PeerSpot reviewer
Security Officer at a tech vendor with 10,001+ employees
Web scanning needs improvement but offers good vulnerability detection
The downside of Qualys Web Application Scanning is that it cannot crawl automatically. If I provide an IP address and a login form, it does basic testing, but it doesn't go deep as IBM AppScan does. If Qualys Web Application Scanning could improve its crawling capability, it would be more user-friendly. Qualys Web Application Scanning does IP-level testing, requiring direct input of credentials, and can only scan a few pages to provide known generic vulnerabilities, which isn't as beneficial from my point of view. The Vulnerability Management also relies heavily on version numbers and will flag vulnerabilities based on the component version, but it doesn't check if a real fix exists, leading to flags on components that actually have workarounds available.

Quotes from Members

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

Pros

"The community edition updates services regularly. They add new vulnerabilities into the scanning list."
"The product helps users to scan and fix vulnerabilities in the pipeline."
"The solution is good at reporting the vulnerabilities of the application."
"Two features are valuable. The first one is that the scan gets completed really quickly, and the second one is that even though it searches in a limited scope, what it does in that limited scope is very good. When you use Zap for testing, you're only using it for specific aspects or you're only looking for certain things. It works very well in that limited scope."
"Automatic updates and pull request analysis."
"It can be used effectively for internal auditing."
"The automatic scanning is a valuable feature and very easy, and the major advantage to this solution is the privacy it offers."
"Zap is an open-source and sophisticated product that not only saves us money but also provides us with a good amount of information."
"Licensing is the most valuable. Qualys provides the best licensing for companies. It is the best product for the development purposes of web applications. The product has a lot of integrations."
"I recommend Qualys Web Application Scanning as it is easy to set up scans and is affordable from a cost perspective."
"The product prevents possible vulnerabilities in our network."
"It's provided us with comprehensive, proactive, and automated vulnerability assessment."
"What I remember from my experience with Qualys is that the simplicity of exporting reports and the simplicity and clarity of the reports included with the product is good."
"I would recommend this tool."
"Qualys' process of updating signatures is something we really appreciate, and it's way ahead of its industry peers."
"By using QualysGuard, we are able to finish external scans with assured results in half the time.​"
 

Cons

"We have had stability issues a few times."
"I'd also like to see an improvement in test reports because we get too many false positives."
"The reporting feature could be more descriptive."
"Without any support, we are in a black hole sometimes."
"While the solution can scale to a certain extent, it cannot scale a lot."
"The disadvantage of Zap is that we're unable to customize reports as it only has a single standard format."
"Reporting format has no output, is cluttered and very long."
"The product reporting could be improved."
"We procured around 110 licenses for Web Application Scanning, but we have issues running concurrent scans."
"There should be better visibility into the application."
"New features need to be added, specifically LLM-based solutions."
"It is unclear how to build automation on Qualys. We do some automation, but not fully, because working is difficult."
"The software’s pricing could be improved."
"We have many websites. We don't force scanning on all of them at once because it's taking some time."
"In terms of the Policy Compliance model which they currently have, not all the platforms are being covered. If they could improve on the Policy Compliance model, since there are policies which are benchmarked against it, this will be helpful for us."
"The product's pricing could be better."
 

Pricing and Cost Advice

"We have used the freeware version. I believe Zap only has freeware."
"OWASP Zap is free to use."
"The solution’s pricing is high."
"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."
"It is open source, and we can scan freely."
"OWASP ZAP is a free tool provided by OWASP’s engineers and experts. There is an option to donate."
"This solution is open source and free."
"I rate the software’s pricing a six out of ten."
"Qualys has an IT-based licensing based on a yearly license, which is a good way of handling it. However, in some cases, when we do the PCI scanning, the host will not like the scanning and we lose the IT license. So, this could be improved."
"Try the free trial of the product to understand the basic working mechanisms.​"
"Pricing was reasonable and competitive. It was not too far above the other products."
"The product pricing is fair and reasonably priced."
"We are on an annual license for the solution and the pricing could be more affordable."
"The cost is $30,000 USD for one year to cover WAS (Web Application Security) and the VM (Virtual Machine) security in a company with 200 employees."
"It is an expensive platform."
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Top Industries

By visitors reading reviews
Computer Software Company
10%
Financial Services Firm
9%
University
9%
Manufacturing Company
8%
Financial Services Firm
14%
Manufacturing Company
12%
Computer Software Company
8%
Construction Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise11
Large Enterprise22
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise6
Large Enterprise27
 

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 ...
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...
What is your experience regarding pricing and costs for Qualys Web Application Scanning?
Regarding pricing, I think for personal use, it is costly, but if organizations are ready to pay, then it is fine as they are using it.
What needs improvement with Qualys Web Application Scanning?
The downside of Qualys Web Application Scanning is that it cannot crawl automatically. If I provide an IP address and a login form, it does basic testing, but it doesn't go deep as IBM AppScan does...
What is your primary use case for Qualys Web Application Scanning?
I use Qualys Web Application Scanning, and we are using Vulnerability Management. By Vulnerability Management, I mean not TotalCloud; they have some on-premises solutions also. Patch Management and...
 

Also Known As

No data available
Qualys WAS
 

Overview

 

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
BskyB, Cartagena, ClearPoint Learning Systems, Connect Group, du, Fortrex Technologies, HBOR, HDI, Highlights for Children, The Lithuanian State Enterprise Centre of Registers, City of Miami Beach, Microsoft, MidlandHR, MSCI Inc., Northern Arizona University, Ofgem, Olympus Europa, PhoneFactor, RTL Nederland, ThousandEyes, VGZ Organisatie B.V.
Find out what your peers are saying about OWASP Zap vs. Qualys Web Application Scanning and other solutions. Updated: June 2026.
900,747 professionals have used our research since 2012.