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HackerOne vs Klocwork comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 28, 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

HackerOne
Ranking in Application Security Tools
19th
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
6
Ranking in other categories
Vulnerability Management (27th), Bug Bounty Platforms (2nd), Penetration Testing Services (2nd), Attack Surface Management (ASM) (11th), 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) (14th), Static Code Analysis (3rd)
 

Mindshare comparison

As of January 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 1.4%, down from 1.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Security Tools Market Share Distribution
ProductMarket Share (%)
Klocwork1.4%
HackerOne0.5%
Other98.1%
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

"HackerOne is larger than WebCloud and has a better reputation than BugCloud, which results in a smoother process."
"It helps me to get new sales, profits, and other benefits."
"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."
"Apart from getting all the bug bounty opportunities, we also get the chance to practice in a safe environment, like a demo setup. These features are great for beginners who want to explore bug bounties in the future."
"HackerOne is larger than WebCloud and has a better reputation than BugCloud, which results in a smoother process."
"The most valuable feature of HackerOne is its variety of programs. These programs provide depth into various areas, such as mobile, API, and websites."
"I like not having to dig through false positives. Chasing down a false positive can take anywhere from five minutes for a small easy one, then something that is complicated and goes through a whole bunch of different class cases, and it can take up to 45 minutes to an hour to find out if it is a false positive or not."
"There's a feature in Klocwork called 'on-the-fly analysis', which helps developers to find and fix the defects at the time of development itself."
"There is a central Klocwork server at our headquarter in France so we connect the client directly to the server on-premises remotely."
"The ability to create custom checkers is a plus."
"The best advantage of Klocwork is the reduced setup time."
"Klocwork is user-friendly, with a client-server architecture that provides all needed compliance."
"Technical support is quite good."
"Overall I find Klocwork's features superior for our needs."
 

Cons

"The ability to view the conversation between the triagers and the programs will be really good."
"Response time can be improved. The HackerOne Trust team can be slow to respond sometimes. They're not using AI, which could help reduce the number of duplicate reports."
"Everything has become slower on HackerOne."
"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."
"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."
"Everything has become slower on HackerOne. I have noticed that older researchers receive all the private invites while newer ones receive fewer."
"The way to define the rules is too complex. The definition/rules for static analysis could be automated according to various SILs, so as to avoid confusion."
"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."
"Every update that we receive requires of us a lengthy and involved process."
"I would like to see better codes between projects and a more user-friendly desktop in the next release."
"Even though it does the job, there's room for feature enhancements, such as integrations with Git for better tracking and notifications."
"Customers using different static analysis tools report more issues than with Klocwork, indicating that Klocwork's engine is not as superior."
"We'd like to see integration with Agile DevOps and Agile methodologies."
"Klocwork sometimes provides too many additional warnings which require expertise to manage."
 

Pricing and Cost Advice

"The tool is open-source and free for bug bounty hunters."
"The solution is free."
"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."
"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."
"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."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Manufacturing Company
11%
Comms Service Provider
10%
Financial Services Firm
10%
Manufacturing Company
23%
Computer Software Company
10%
Transportation Company
8%
Comms Service Provider
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Large Enterprise3
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?
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 a...
What is your primary use case for HackerOne?
My main use case for HackerOne is mostly for submitting bugs. I get into the programs listed there, find one that is suitable for me, do my penetration testing on the systems, try to bypass some co...
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: December 2025.
879,853 professionals have used our research since 2012.