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HackerOne vs Klocwork comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 29, 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

HackerOne
Ranking in Application Security Tools
16th
Average Rating
8.4
Reviews Sentiment
6.4
Number of Reviews
9
Ranking in other categories
Vulnerability Management (29th), Bug Bounty Platforms (1st), Penetration Testing Services (2nd), Attack Surface Management (ASM) (8th), AI Observability (10th)
Klocwork
Ranking in Application Security Tools
17th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
25
Ranking in other categories
Static Application Security Testing (SAST) (15th), Static Code Analysis (3rd)
 

Mindshare comparison

As of April 2026, in the Application Security Tools category, the mindshare of HackerOne is 0.5%, up from 0.1% compared to the previous year. The mindshare of Klocwork is 1.3%, down from 1.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Security Tools Mindshare Distribution
ProductMindshare (%)
HackerOne0.5%
Klocwork1.3%
Other98.2%
Application Security Tools
 

Featured Reviews

Ruphus Muita - PeerSpot reviewer
Senior ICT Security Consultant at Applied Principles Limited
Has improved my motivation to submit bugs consistently through fast response and clear filtering
I think HackerOne can be improved by allowing new users to gain access to certain programs that are only open to known, renowned users. Sometimes new users don't receive invites just because they are new, despite potentially being very skilled hackers, so I feel new users should get more chances and opportunities. I am currently satisfied with the rewards, response time, and other aspects of the platform, so I don't have anything else to add about the necessary improvements. I give HackerOne a nine out of ten because if new hackers are given more opportunities, it could be a perfect 10 for me. However, the reason I gave a nine is that I don't have much to complain about; I specifically love the program and don't have many concerns.
KG
Manager, Quality, Functional Safety, Cybersecurity Embedded Processing at a manufacturing company with 10,001+ employees
Experience with compliance improvements and efficiency boosts but static analysis engine shows a need for enhancement
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 improvement. Customers using different static analysis tools report more issues than with Klocwork, indicating that Klocwork's engine is not as superior. Klocwork should be able to analyze large codebases efficiently, supporting a desktop version for periodic small delta changes before pushing to the server.

Quotes from Members

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

Pros

"Using HackerOne has definitely improved the security of my web application, identifying security gaps I didn't realize as a web developer."
"HackerOne is larger than WebCloud and has a better reputation than BugCloud, which results in a smoother process."
"The fast verification process impacts my motivation significantly because a quick response keeps me motivated, and if I'm going to try and hunt bugs today, I would appreciate a response within the day or at least within a few days."
"The most valuable feature of HackerOne is its variety of programs. These programs provide depth into various areas, such as mobile, API, and websites."
"It helps me to get new sales, profits, and other benefits."
"HackerOne has been the right fit for our current situation from both a functionality and cost-effectiveness perspective."
"If you have a very critical vulnerability, some good companies will acknowledge it and pay you accordingly based on severity."
"HackerOne is larger than WebCloud and has a better reputation than BugCloud, which results in a smoother process."
"One can increase the number of vendors, so the solution is scalable."
"Technical support is quite good."
"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."
"We consider it a stable product."
"Klocwork is a good product, but keep in mind that before building the code you have to get a report."
"Now Klocwork has completely removed this and we are very easily checking our internal standards."
"The reporting helps us understand the trend of our results and whether we improve over time. We can see the history within Klocwork's server architecture and know that we're making things better. It creates a great story for our management. We can demonstrate value and how our software is developing over time."
"It saves a lot of time when it comes to finding defects, it's basically inputted in every access we do."
 

Cons

"However, I reduced my rating by one mark because a proper internal triage team should be in place, not as a replacement for internal security controls."
"One issue I've experienced is traffic. Many people try to participate when an opportunity with a bounty of around 1,000-15,000 dollars comes up. In this case, the first person to report the vulnerability gets the bounty. If a second person reports the same vulnerability, they are marked as duplicated instead of receiving some recognition. The second person also invested time finding the issue, so I think this can be improved."
"HackerOne provides a "HackBot" which helps identify other relevant reports, including duplicates, public reports from other companies, etc. However, the functionality is limited and it would be nice to integrate it with broader services offered like auto responses, triggers, etc."
"Everything has become slower on HackerOne. I have noticed that older researchers receive all the private invites while newer ones receive fewer."
"Everything has become slower on HackerOne."
"One limitation is that if a finding has been reported on HackerOne and was also reported earlier by another user or outsider, the platform is not able to collate that information together."
"The ability to view the conversation between the triagers and the programs will be really good."
"Triage response time is a significant issue. The response time and triage speed are not fast enough, and this is causing many people to leave HackerOne."
"There are too many warnings, and it requires expertise to determine the correct category for them."
"We'd like to see integration with Agile DevOps and Agile methodologies."
"Klocwork has to improve its features to stay ahead of other free solutions."
"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."
"This solution could be improved if they offered support of more languages including Ada and Golang. They currently only support seven languages."
"Under NIST cybersecurity standards, we must address vulnerabilities within a specified time after discovering them. When we try to propagate those updates and fixes through the system, it would be nice if the clients could reconnect to the existing server or have the server dynamically updated in some way. I know that isn't easy, but maybe processes could be enhanced to make that more streamlined from a DevOps perspective."
"Modern languages, such as Angular and .NET, should be included as a part of Klocwork."
 

Pricing and Cost Advice

"The solution is free."
"The tool is open-source and free for bug bounty hunters."
"Klocwork should not to be quite so heavy handed on the licensing for very specific programs."
"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 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."
"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."
"Licensing fees are paid annually, but they also have a perpetual license."
"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."
"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."
"This solution offers competitive pricing."
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Top Industries

By visitors reading reviews
Comms Service Provider
12%
Computer Software Company
11%
Manufacturing Company
10%
Financial Services Firm
9%
Manufacturing Company
22%
Computer Software Company
9%
Transportation Company
7%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise1
Large Enterprise4
By reviewers
Company SizeCount
Small Business12
Midsize Enterprise2
Large Enterprise12
 

Questions from the Community

What is your experience regarding pricing and costs for HackerOne?
I have not experienced any costs since I use HackerOne independently, just logging into the site, hunting bugs, and submitting them without any expenses.
What needs improvement with HackerOne?
HackerOne has trust from companies such as Shopify, PayPal, and Uber, which provides a stronger brand perception and competitive market positioning. However, I reduced my rating by one mark because...
What is your primary use case for HackerOne?
I use HackerOne for the bug bounty platform to find security issues. When we discover vulnerabilities, we receive awards for them. Before testing any new payment API for public release, we can have...
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.
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...
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...
 

Comparisons

 

Also Known As

HackerOne Assets, HackerOne Pentesting Services, HackerOne Security Assessments, HackerOne Vulnerability Management
No data available
 

Overview

 

Sample Customers

Anthropic, Crypto.com, General Motors, GitHub, Goldman Sachs, Uber, and the U.S. Department of Defense
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
Find out what your peers are saying about HackerOne vs. Klocwork and other solutions. Updated: March 2026.
885,444 professionals have used our research since 2012.