Klocwork vs OWASP Zap comparison

Perforce and OWASP are both solutions in the Static Application Security Testing (SAST) category. Perforce is ranked #16 with an average rating of 8.2, while OWASP is ranked #11 with an average rating of 8.0. Perforce holds a 1.6% mindshare in SAST, compared to OWASP’s 4.7% mindshare. Additionally, 92% of Perforce users are willing to recommend the solution, compared to 88% of OWASP users who would recommend it.

Klocwork

Read 24 Klocwork reviews

3,098 Views
781 Comparison Views

92% willing to recommend

OWASP Zap

Read 41 OWASP Zap reviews

9,575 Views
514 Comparison Views

88% willing to recommend

Klocwork

OWASP Zap

Comparison Buyer's Guide

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Executive SummaryUpdated on Oct 8, 2024

Klocwork and OWASP Zap compete in code analysis and software vulnerability scanning. While users prefer Klocwork for pricing and support, OWASP Zap is favored for its features, offering superior value for those seeking comprehensive functionality.

Features: Klocwork offers comprehensive detection capabilities, seamless integration with CI/CD pipelines, and is cost-effective for larger teams. OWASP Zap provides a vast library of ready-to-use scanning rules, is adaptable to various environments, and its open-source nature allows for flexibility and customization.

Room for Improvement: Klocwork users suggest enhancements in reporting features, more intuitive configuration options, and better usability. OWASP Zap users desire improved scanning performance, more detailed documentation, and focus on performance and resource optimization.

Ease of Deployment and Customer Service: Klocwork is noted for its straightforward deployment and responsive customer service, with a support team that resolves issues efficiently. OWASP Zap offers simpler deployment but requires user knowledge for setup. Both have supportive customer service, though Klocwork often provides more hands-on assistance.

Pricing and ROI: Klocwork is seen as cost-effective with a favorable ROI for large teams, despite higher support costs. OWASP Zap's open-source advantage means lower setup costs and perceived long-term savings, appealing to budget-conscious users. The advanced functionalities often offset initial expenses.

To learn more, read our detailed Klocwork vs. OWASP Zap Report (Updated: June 2025).

Buyer's Guide

Klocwork vs. OWASP Zap

June 2025

Download the complete report

Helped 859,129 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

Klocwork

Ranking in Static Application Security Testing (SAST)

16th

Average Rating

8.0

Reviews Sentiment

7.1

Number of Reviews

Ranking in other categories

Application Security Tools (18th), Static Code Analysis (5th)

OWASP Zap

Ranking in Static Application Security Testing (SAST)

11th

Average Rating

7.6

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of June 2025, in the Static Application Security Testing (SAST) category, the mindshare of Klocwork is 1.6%, down from 1.7% compared to the previous year. The mindshare of OWASP Zap is 4.7%, down from 4.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Static Application Security Testing (SAST)

Featured Reviews

AnirbanSarkar

Head - Solution Management Group at Meteonic Innovation Pvt. Ltd.

Lets you find defects during the development phase, so you don't have to wait till the development is over to find and address flaws

What needs improvement in Klocwork, compared to other products in the market, is the dashboard or reporting mechanisms that need to be a bit more flexible. The Klocwork dashboard could be improved. Though it's good, it's not as good as some of the other products in the market, which is a problem. The reporting could be more detailed and easier to sort out because sorting in Klocwork could be a bit more time-consuming, mainly when sorting defects based on filters, compared to how it's done on other tools such as Coverity. What I'd like added in the next release of Klocwork is the peer code review Cahoots which used to be a part of Klocwork, and the architecture analysis and both have been taken out of Klocwork. I found the two critical for specific deployments, so if those can be brought back to Klocwork, that would be very good.

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Amit Beniwal

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.

Read full review

Quotes from Members

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

Pros

"The tool helps the team to think beforehand about corner cases or potential bugs that might arise in real-time."

"The most valuable feature of Klocwork is its reduced setup time."

"The best advantage of Klocwork is the reduced setup time."

"Klocwork is user-friendly, with a client-server architecture that provides all needed compliance."

"On-the-fly analysis and incremental analysis are the best parts of Klocwork. Currently, we are using both of these features very effectively."

"Klocwork's most valuable feature is the static code analysis feature. It detects the potential problem earlier to allow the developer to receive feedback quickly and then address it before it becomes a problem."

"The most valuable feature is the Incremental analysis."

More Klocwork pros

"OWASP Zap is straightforward to use. If someone doesn't have the budget for tools like Burp Suite, OWASP Zap is an excellent alternative."

"It's great that we can use it with Portswigger Burp."

"The product helps users to scan and fix vulnerabilities in the pipeline."

"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."

"Automatic updates and pull request analysis."

"The community edition updates services regularly. They add new vulnerabilities into the scanning list."

"The API is exceptional."

"The ZAP scan and code crawler are valuable features."

More OWASP Zap pros

Cons

"There are too many warnings, and it requires expertise to determine the correct category for them."

"Klocwork does have a problem with true positives. It only found 30% of true positives in the Juliet test case."

"Klocwork has to improve its features to stay ahead of other free solutions."

"Every update that we receive requires of us a lengthy and involved process."

"The main problem is that since it only parses the code, the warnings or the problems that are given as a result of the report can sometimes require a lot of effort to analyze."

"What needs improvement in Klocwork, compared to other products in the market, is the dashboard or reporting mechanisms that need to be a bit more flexible. The Klocwork dashboard could be improved. Though it's good, it's not as good as some of the other products in the market, which is a problem. The reporting could be more detailed and easier to sort out because sorting in Klocwork could be a bit more time-consuming, mainly when sorting defects based on filters, compared to how it's done on other tools such as Coverity."

"Klocwork sometimes provides too many additional warnings which require expertise to manage."

"We bought Klocwork, but it was limited to one little program, but the program is now sort of failing. So, we have a license for usage on a program that is sort of failing, and we really can't use the license on anything else."

More Klocwork cons

"OWASP Zap needs to extend to mobile application testing."

"OWASP should work on reducing false positives by using AI and ML algorithms."

"It would be a great improvement if they could include a marketplace to add extra features to the tool."

"OWASP Zap could benefit from a noise cancellation feature like that of Burp Suite Professional, where AI helps reduce certain non-critical findings."

"The solution is unable to customize reports."

"The product should allow users to customize the report based on their needs."

"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."

"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."

More OWASP Zap cons

Pricing and Cost Advice

"The limitation that we have is that Klocwork is licensed to certain programs, and if you want to license them to other programs, you have to pay more money."

"Klocwork should not to be quite so heavy handed on the licensing for very specific programs."

"The pricing for Klocwork is very competitive if you compare it from apple to apple. It has competitive pricing regarding the licensing model and the per-license cost. Klocwork isn't a high-end investment for anyone deploying it; even SMBs can afford it. The Klocwork cost per user would depend on the license type, so I'm unable to mention a ballpark figure because it would depend on the type of installation and how the deployment will be, and the nodes to give an accurate calculation or figure. The total price depends on the package, so my company could never publish pricing for Klocwork on the website. My team first collects information from potential clients on the deployment scenario, project environment, etc., before suggesting a package for Klocwork. My rating for Klocwork in terms of pricing is a five because of its flexible license models. There's a license model for every type of organization, whether small, midsize, or enterprise, so it's a five out of five for me."

"When it comes to licensing, the solution has two packages, one for a fixed and the other for a floating server, with the former being more cost effective than the latter."

"This solution offers competitive pricing."

"There are other solutions on the market such as Microsoft Visual Studio. They have been adding more static code analysis features that come for free. It is getting better all the time. That is one of the possibilities is that we've been considering that we may stop using the Klocwork because it doesn't give us any added value."

"Licensing fees are paid annually, but they also have a perpetual license."

"Klocwork is still tight on their licensing. If Klocwork would loosen up on the licensing, and where the license could be used, and how many different programs could be run on it, then we have several development programs that I would love to be able to use it for going forward."

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

"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 tool is open source."

"This is an open-source solution and can be used free of charge."

"OWASP Zap is free to use."

"The tool is open-source."

"It is highly recommended as it is an open source tool."

"We have used the freeware version. I believe Zap only has freeware."

More OWASP Zap pricing and cost advice

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Top Industries

By visitors reading reviews

Manufacturing Company

23%

Educational Organization

19%

Computer Software Company

12%

Comms Service Provider

Computer Software Company

17%

Financial Services Firm

12%

Manufacturing Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

Questions from the Community

What do you like most about Klocwork?

It's integrated into our CI, continuous integration.

See all answers

What is your experience regarding pricing and costs for Klocwork?

Klocwork was competitively priced, making it a cost-effective solution for us.

See all answers

What needs improvement with Klocwork?

We would like Klocwork to connect to Git and notify developers of issues tied to specific commits. Currently, this feature is absent, but we have suggested it to the team.

See all answers

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 ...

See all answers

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...

See all answers

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

Comparisons

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Compared 33% of the time

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Compared 30% of the time

Polyspace Code Prover vs Klocwork

Compared 13% of the time

Helix QAC vs Klocwork

Compared 3% of the time

Parasoft SOAtest vs Klocwork

Compared 3% of the time

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SonarQube Server (formerly SonarQube) vs OWASP Zap

Compared 20% of the time

Acunetix vs OWASP Zap

Compared 16% of the time

Checkmarx One vs OWASP Zap

Compared 10% of the time

Qualys Web Application Scanning vs OWASP Zap

Compared 9% of the time

Veracode vs OWASP Zap

Compared 9% of the time

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Product Reports

Buyer's Guide

Klocwork

June 2025

Download Klocwork product report

Buyer's Guide

OWASP Zap

June 2025

Download OWASP Zap product report

Overview

Klocwork detects security, safety, and reliability issues in real-time by using this static code analysis toolkit that works alongside developers, finding issues as early as possible, and integrates with teams, supporting continuous integration and actionable reporting.

Perforce

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

Sample Customers

ACCESS Co Ltd, Risk-AI, Winbond Electronics, Bristol-Myers Squibb Pharmaceutical Research Institute, University of Southern California, Alebra Technologies, SIMULIA, Risk Management Solutions, Brigham Young University, SRD, HRL

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

Buyer's Guide

Klocwork vs. OWASP Zap

June 2025

Free Report: Klocwork vs. OWASP Zap

Find out what your peers are saying about Klocwork vs. OWASP Zap and other solutions. Updated: June 2025.

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