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OWASP Zap vs Qualys Web Application Scanning comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 30, 2025

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)
11th
Average Rating
7.6
Reviews Sentiment
7.3
Number of Reviews
40
Ranking in other categories
No ranking in other categories
Qualys Web Application Scan...
Ranking in Static Application Security Testing (SAST)
9th
Average Rating
7.8
Reviews Sentiment
6.9
Number of Reviews
38
Ranking in other categories
Application Security Tools (12th)
 

Mindshare comparison

As of April 2025, in the Static Application Security Testing (SAST) category, the mindshare of OWASP Zap is 5.1%, down from 5.8% compared to the previous year. The mindshare of Qualys Web Application Scanning is 2.2%, down from 2.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Static Application Security Testing (SAST)
 

Q&A Highlights

MK
Jan 23, 2020
 

Featured Reviews

Amit Beniwal - PeerSpot reviewer
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.
SubhajitAich - PeerSpot reviewer
A stable solution that can be used for infrastructure vulnerability scanning and web application scanning
Qualys Web Application Scanning is very complex to use, and its graphical interface is not very user-friendly. Compared to other solutions like Tenable and Rapid7, you need to navigate a lot to get the actual results out of Qualys Web Application Scanning. If I have to search for one thing within the entire console, I have to look for it randomly. It's not very easy and very comfortable to find something. Overall, it's a very good solution, but it will be very good if the tool is more user-friendly.

Quotes from Members

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

Pros

"The ZAP scan and code crawler are valuable features."
"Simple and easy to learn and master."
"The HUD is a good feature that provides on-site testing and saves a lot of time."
"The community edition updates services regularly. They add new vulnerabilities into the scanning list."
"The stability of the solution is very good."
"It updates repositories and libraries quickly."
"One valuable feature of OWASP Zap is that it is simple to use."
"The reporting is quite intuitive, which gives you a clear indication of what kind of vulnerability you have that you can drill down on to gather more information."
"It scans web applications to identify vulnerabilities during deployment."
"You can integrate your Burp Suite results and create an integrated report. Also, the way it shows the results - threats and exploit details - makes remediation very easy."
"Qualys Web Application Scanning is accurate and provides minimal false positives."
"Qualys WAS' most valuable features are the navigation flow of the UI and the option for a different layer of security (identification and operation through email and mobile)."
"It is a cloud-based solution, so it is easy to scale."
"The tool links vulnerabilities with DDIs and gives a complete overview of the application. The continuous monitoring capability is good."
"​QualysGuard web-based scanner is very useful for performing external penetration and PCI scans from remote locations.​"
"Qualys Web Application Scanning is robust and mature from industry standards."
 

Cons

"Sometimes, we get some false positives."
"Lacks resources where users can internally access a learning module from the tool."
"OWASP should work on reducing false positives by using AI and ML algorithms."
"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."
"The work that it does in the limited scope is good, but the scope is very limited in terms of the scanning features. The number of things it tests or finds is limited. They need to make it a more of a mainstream tool that people can use, and they can even think about having it on a proprietary basis. They need to increase the coverage of the scan and the results that it finds. That has always been Zap's limitation. Zap is a very good tool for a beginner, but once you start moving up the ladder where you want further details and you want your scan to show more in-depth results, Zap falls short because its coverage falls short. It does not have the capacity to do more."
"It would be nice to have a solid SQL injection engine built into Zap."
"The product reporting could be improved."
"The technical support team must be proactive."
"The virus code updates are not frequent enough."
"The product should allow users to upload their payloads."
"There should be better visibility into the application."
"The support could be faster."
"There's a distinction between internal and external scanning processes that could be streamlined. Currently, for internal scanning, specific configurations and scanner appliances need to be deployed within the network, which differs from the simpler setup for external scans. This dual process complicates the setup for comprehensive scanning coverage."
"The pricing does not seem to be competitive."
"They should try to include business logic vulnerabilities in the scanner testing."
"The GUI could be a little less complicated as it opens a lot of new windows for creating search lists, templates, reports, or for scanning purposes."
 

Pricing and Cost Advice

"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."
"This solution is open source and free."
"It is highly recommended as it is an open source tool."
"The tool is open-source."
"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 free to use."
"This app is completely free and open source. So there is no question about any pricing."
"Qualys WAS' pricing is competitive."
"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."
"I rate the software’s pricing a six out of ten."
"The product pricing is fair and reasonably priced."
"Pricing was reasonable and competitive. It was not too far above the other products."
"We normally purchase an annual license."
"From my perspective, it is a budget-friendly option."
"It is an expensive platform."
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Top Industries

By visitors reading reviews
Computer Software Company
18%
Financial Services Firm
11%
Manufacturing Company
8%
Government
7%
Computer Software Company
16%
Financial Services Firm
15%
Manufacturing Company
10%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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 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...
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 do you like most about Qualys Web Application Scanning?
The vulnerability management feature is a strong one. And also the patch management feature.
What needs improvement with Qualys Web Application Scanning?
I would like it to be cheaper because it is a bit expensive compared to competitors like Tenable Nessus ( /products/tenable-nessus-reviews ). After using the product for a year, I might have more s...
 

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: April 2025.
849,686 professionals have used our research since 2012.