Klocwork vs OWASP Zap comparison

Perforce and OWASP are both solutions in the Static Application Security Testing (SAST) category. Perforce is ranked #17 with an average rating of 8.2, while OWASP is ranked #11 with an average rating of 8.0. Perforce holds a 1.5% mindshare in SAST, compared to OWASP’s 4.5% mindshare. Additionally, 93% of Perforce users are willing to recommend the solution, compared to 88% of OWASP users who would recommend it.

Klocwork

Read 25 Klocwork reviews

3,353 Views
2,448 Comparison Views

93% willing to recommend

OWASP Zap

Read 41 OWASP Zap reviews

7,876 Views
7,167 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: September 2025).

Buyer's Guide

Klocwork vs. OWASP Zap

September 2025

Download the complete report

Helped 869,566 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)

17th

Average Rating

8.0

Reviews Sentiment

6.8

Number of Reviews

Ranking in other categories

Application Security Tools (19th), Static Code Analysis (6th)

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 October 2025, in the Static Application Security Testing (SAST) category, the mindshare of Klocwork is 1.5%, down from 1.8% compared to the previous year. The mindshare of OWASP Zap is 4.5%, up from 4.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Static Application Security Testing (SAST) Market Share Distribution
Product	Market Share (%)
OWASP Zap	4.5%
Klocwork	1.5%
Other	94.0%

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

"There is a central Klocwork server at our headquarter in France so we connect the client directly to the server on-premises remotely."

"The customer support team is very responsive, proactive, and engages in conversations to ensure our needs are met."

"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."

"The most valuable feature of Klocwork is finding defects while you're doing the coding. For example, if you have an IDE plug-in of Klocwork on Visual Studio or Eclipse, you can find the faults; similar to using spell check on Word, you can find out defects during the development phase, which means that you don't have to wait till the development is over to find the flaws and address the deficiencies. I also find language support in Klocwork good because it used to support only C, C++, C#, and Java, but now, it also supports Java scripts and Python."

"The ability to create custom checkers is a plus."

More Klocwork pros

"ZAP is easy to use. The automated scan is a powerful feature. You can simulate attacks with various parameters. ZAP integrates well with SonarQube."

"This solution has improved my organization because it has made us feel safer doing frequent deployments for web applications. If we have something really big, we might get some professional company in to help us but if we're releasing small products, we will check it ourselves with Zap. It makes it easier and safer."

"It updates repositories and libraries quickly."

"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."

"I consider OWASP Zap to be the most effective solution overall; being open source allows integration with other systems via OWASP Zap APIs."

"The stability of the solution is very good."

"OWASP is quite matured in identifying the vulnerabilities."

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

More OWASP Zap pros

Cons

"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."

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

"This solution could be improved if they offered support of more languages including Ada and Golang. They currently only support seven languages."

"Customers using different static analysis tools report more issues than with Klocwork, indicating that Klocwork's engine is not as superior."

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

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

"Now the only issue we have is that whenever we need to get the code we have to build it first. Then we can get the report."

"I hope that in each new release they add new features relating to the addition of checkers, improving their analysis engines etc."

More Klocwork cons

"It would be beneficial to enhance the algorithm to provide better summaries of automatic scanning results."

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

"Lacks resources where users can internally access a learning module from the tool."

"The automated vulnerability assessments that the application performs needs to be simplified as well as diversified."

"It needs more robust reporting tools."

"The solution is unable to customize reports."

"Zap could improve by providing better reports for security and recommendations for the vulnerabilities."

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

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."

"This solution offers competitive pricing."

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

"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."

"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."

"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."

"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."

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

"As Zap is free and open-source, with tons of features similar to those of commercial solutions, I would definitely recommend trying it out."

"The solution’s pricing is high."

"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."

"The tool is open source."

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

"OWASP ZAP is a free tool provided by OWASP’s engineers and experts. There is an option to donate."

"The tool is open-source."

More OWASP Zap pricing and cost advice

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Top Industries

By visitors reading reviews

Manufacturing Company

26%

Computer Software Company

13%

Comms Service Provider

Transportation Company

Computer Software Company

15%

Financial Services Firm

10%

University

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	12
Midsize Enterprise	2
Large Enterprise	12

By reviewers
Company Size	Count
Small Business	10
Midsize Enterprise	11
Large Enterprise	21

Questions from the Community

What is your experience regarding pricing and costs for Klocwork?

Klocwork's pricing seems attractive, as it uses a per-user license model that does not have a lot of overhead.

See all answers

What needs improvement with Klocwork?

One area for improvement is that when customers use different static analysis tools, they report more issues compared to Klocwork. The static analysis engine of Klocwork has areas that need improve...

See all answers

What is your primary use case for Klocwork?

I work on tools such as Klocwork, LDRA, as well as Jira and Confluence, focusing more on the software quality assurance aspect. We use Klocwork for coding and aggregate checks. We use it for static...

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

Coverity Static vs Klocwork

Compared 28% of the time

SonarQube Server (formerly SonarQube) vs Klocwork

Compared 27% of the time

Polyspace Code Prover vs Klocwork

Compared 14% of the time

Helix QAC vs Klocwork

Compared 6% of the time

Axivion Static Code Analysis vs Klocwork

Compared 5% of the time

More Klocwork Competitors

SonarQube Server (formerly SonarQube) vs OWASP Zap

Compared 18% of the time

Acunetix vs OWASP Zap

Compared 14% 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

More OWASP Zap Competitors

Product Reports

Buyer's Guide

Klocwork

September 2025

Download Klocwork product report

Buyer's Guide

OWASP Zap

September 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

September 2025

Free Report: Klocwork vs. OWASP Zap

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

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