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HAProxy vs Kemp LoadMaster vs LoadBalancer Enterprise comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

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

ROI

Sentiment score
7.1
HAProxy's open-source load balancer cuts costs, boosts efficiency, improves uptime, reduces staffing, and enhances scalability for users.
Sentiment score
7.4
Kemp LoadMaster is a cost-effective solution that enhances efficiency, security, and offers significant returns quickly in various industries.
Sentiment score
5.7
LoadBalancer Enterprise enhances network reliability and security, crucial for VoIP, while being cost-effective and vital for continuous operations.
Operational efficiency has improved; we no longer have staff consistently monitoring backend servers during deployment or scaling events, as HAProxy's health checks and hitless reloads allow us to push changes with minimal manual intervention.
Junior System Administrator & DevOps at a tech services company with 11-50 employees
This resulted in a drastic decrease in costs and, at the same time, the accuracy of the hits coming on HAProxy was almost around 100% or 99.99%.
Head of DevOps at TripFactory
I estimate seeing a return on investment with HAProxy, as it significantly reduced staff requirements and enhanced scaling capabilities, particularly when transitioning from NGINX, which faced issues.
Principal Engineer Manager at a manufacturing company with 501-1,000 employees
 

Customer Service

Sentiment score
6.5
HAProxy's customer service and technical support are highly rated for quick, expert assistance, though documentation could improve.
Sentiment score
8.8
Kemp LoadMaster support is highly rated for its knowledgeable, efficient team offering quick issue resolution and comprehensive online resources.
Sentiment score
8.0
Loadbalancer Enterprise's support is praised for expertise and responsiveness, despite minor delays; users highly value their reliability.
Since we are utilizing the open-source edition, community forums, mailing lists, and GitHub have been invaluable, with typically someone having encountered the same problems we faced.
Junior System Administrator & DevOps at a tech services company with 11-50 employees
My interactions with HAProxy's customer support were limited, but the feedback from my team indicated satisfactory service.
Principal Engineer Manager at a manufacturing company with 501-1,000 employees
We have not received technical support from Kemp LoadMaster without a license.
Information Security Engineer at BOK
 

Scalability Issues

Sentiment score
7.9
HAProxy efficiently handles scalability, easily adapting configurations for growing traffic, ideal for small to medium businesses and larger environments.
Sentiment score
8.2
Kemp LoadMaster is highly scalable, supporting smooth upgrades and adaptable licensing for both small and large enterprises.
Sentiment score
7.8
LoadBalancer Enterprise excels in scalability, handling high loads smoothly, though some face hardware and budget constraints.
We manage an automatic load balancing feature where we add HAProxy servers dynamically behind the application load balancer to handle more traffic.
Head of DevOps at TripFactory
HAProxy's scalability is excellent; as our traffic expands, it handles load increases effortlessly.
Junior System Administrator & DevOps at a tech services company with 11-50 employees
For scalability, HAProxy meets my needs, supporting our initial horizontal scaling and then adapting to vertical scaling in a VMware environment.
Principal Engineer Manager at a manufacturing company with 501-1,000 employees
Kemp LoadMaster is a scalable solution.
Information Security Engineer at BOK
 

Stability Issues

Sentiment score
8.1
HAProxy is reliable, handles heavy traffic efficiently, with minimal downtime, quick support, and frequent updates enhancing stability and performance.
Sentiment score
8.7
Kemp LoadMaster is praised for its stability, reliability, high availability, and effective server load management with minimal downtime.
Sentiment score
7.9
LoadBalancer Enterprise is stable and reliable, with minimal issues and high stability ratings, suitable for production environments.
This reliability serves as a key reason for our choice, providing us with confidence even when faced with heavy traffic.
Junior System Administrator & DevOps at a tech services company with 11-50 employees
The hot reload feature of HAProxy also really helped us so that we never had to shut it down to reload it.
CEo at CloudPositive
We have reduced a lot of servers, replacing them with one or two HAProxy servers which deliver better performance, accuracy, and an almost 100% success rate with requests.
Head of DevOps at TripFactory
With the license purchase afterwards, if it expires, it begins dropping the HTTP traffic, also the DNS traffic.
Information Security Engineer at BOK
 

Room For Improvement

HAProxy needs a revamped GUI, improved APIs, better AWS integration, real-time config, enhanced docs, and stronger monitoring and security.
Kemp LoadMaster needs UI, security, documentation enhancements, improved monitoring, automation, analytics, and better cloud integration.
LoadBalancer Enterprise needs simplified configuration, enhanced scalability, API access, improved security, lower pricing, and better Metaswitch integration.
The configuration syntax is powerful yet can become overwhelming for newcomers; a more beginner-friendly interface or a native GUI without relying on third-party tools would ease the onboarding process.
Junior System Administrator & DevOps at a tech services company with 11-50 employees
An easier desktop interface to connect to a remote server and make changes on my PC would be beneficial.
DevOps engineer at a tech services company with 1-10 employees
The reloading functionality is effective as it allows soft reloads without interrupting traffic patterns.
Principal Engineer Manager at a manufacturing company with 501-1,000 employees
After that, they said if it was good, we could purchase the license, and while we found it very good, the license cost was too high.
Information Security Engineer at BOK
 

Setup Cost

Enterprise users value HAProxy's competitive pricing and cost-effective licensing, especially compared to F5 and Citrix, despite initial setup costs.
Kemp LoadMaster offers flexible, cost-effective licensing and setup with positive user feedback and a 30-day free trial.
Enterprise users find LoadBalancer Enterprise offers good value, with negotiable costs, affordable upgrades, and competitive pricing options.
Since we use the open-source edition, there are no licensing fees, with the main cost being the infrastructure running on EC2 instances in AWS, which helps maintain low expenses.
Junior System Administrator & DevOps at a tech services company with 11-50 employees
Setting up HAProxy didn't cost anything for me.
DevOps engineer at a tech services company with 1-10 employees
The pricing remains competitive compared to other vendors.
Principal Engineer Manager at a manufacturing company with 501-1,000 employees
 

Valuable Features

Users praise HAProxy for reliable load balancing, customization, low latency, open-source benefits, and advanced features like secure traffic management.
Kemp LoadMaster offers ease of use, security features, Azure integration, and cost-effective load balancing for Microsoft applications.
LoadBalancer Enterprise provides reliable, user-friendly load balancing with scalability and efficiency, ensuring consistent service with low latency and essential integrations.
By moving all SSL termination to the load balancer, I now manage certificates in a single place, and I can also utilize Let's Encrypt with HAProxy's built-in ACME support, making renewal automatic.
Junior System Administrator & DevOps at a tech services company with 11-50 employees
HAProxy positively impacted our organization by exceeding scalability expectations, initially projected at 200k requests but ultimately handling over 15 million transactions per second without any issues.
Principal Engineer Manager at a manufacturing company with 501-1,000 employees
As a production engineer at that time, I definitely wanted to ensure that the system could handle massive connections, especially since we operated an e-commerce platform where we could not lose any customer calls.
CEo at CloudPositive
We had some issues in patching management, so we deployed this product for virtual patching, the IPS rule, and it gives us very good results because we have very critical servers.
Information Security Engineer at BOK
 

Mindshare comparison

As of May 2026, in the Application Delivery Controllers (ADC) category, the mindshare of HAProxy is 8.9%, down from 12.4% compared to the previous year. The mindshare of Kemp LoadMaster is 6.2%, down from 7.5% compared to the previous year. The mindshare of LoadBalancer Enterprise is 4.8%, up from 3.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Delivery Controllers (ADC) Mindshare Distribution
ProductMindshare (%)
HAProxy8.9%
Kemp LoadMaster6.2%
LoadBalancer Enterprise4.8%
Other80.1%
Application Delivery Controllers (ADC)
 

Featured Reviews

Shrinivas Devarkonda - PeerSpot reviewer
Head of DevOps at TripFactory
Handles high traffic efficiently and simplifies complex routing with rule-based logic
I think HAProxy is good as it stands now, but I believe there could be improvements. gRPC has recently been implemented, which is great, along with TLS 1.2 and 1.3 support, and HTTP 2.0 is also available. However, I'm unsure about the benchmark of those HTTP 2.0 requests on HAProxy. If there were any other protocol with better performance than HTTP 2.0, or perhaps mTLS and other similar features, including that in HAProxy would be really great. For improvements, I think that during setup and configuration, the steps provided are neat and clear. Anyone can easily install and configure it. There are many kernel tuning parameters also available, which is great. For specific improvement, in terms of logging, I think printing the full object of the request may help, or if there's a way to reference two requests, it would be beneficial to find a complete session history from a logged-in customer, as it would help analyze customer and user analytics.
IshtiaqKhalil - PeerSpot reviewer
Information Security Engineer at BOK
Displays flexible, user-friendly interface with minor licensing challenges
The product could be improved with a more intuitive interface for complex configurations and more advanced analytics. Additionally, enhanced security features, like a more robust Web Application Firewall, and stronger APIs for better automation would be beneficial. Overall, the main areas for improvement are in strengthening the advanced features to better meet the demands of large-scale enterprise environments. key features for the next release should focus on three areas. First, an enhanced, next-generation security suite with a more powerful Web Application Firewall (WAF) and integrated bot protection. Second, more advanced and customizable analytics dashboards to provide deeper insights into application performance. Finally, greater support for modern, cloud-native environments, including better APIs for automation and seamless hybrid-cloud traffic management
Nigus Machin Amare - PeerSpot reviewer
CTO at Malam Engineering PLC
Load management and balancing efficiency that's flexible
Our primary use case for Loadbalancer.org is on the presale point for clients who use the solution for balancing loads The most valuable features of Loadbalancer.org are related to its load balancing capabilities. There is room for improvement in Loadbalancer.org in certain areas. For a…
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Comms Service Provider
10%
Financial Services Firm
9%
Manufacturing Company
9%
Financial Services Firm
11%
Computer Software Company
10%
Manufacturing Company
7%
Government
6%
Construction Company
15%
Computer Software Company
12%
Financial Services Firm
10%
Manufacturing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business17
Midsize Enterprise15
Large Enterprise16
By reviewers
Company SizeCount
Small Business24
Midsize Enterprise13
Large Enterprise16
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise14
 

Questions from the Community

Do you recommend HAProxy?
I do recommend HAProxy for more simple applications or for companies with a low budget, since HAProxy is a free, open...
What is your experience regarding pricing and costs for HAProxy?
Since we used the open-source version, we were not concerned about pricing, setup cost, or licensing.
What needs improvement with HAProxy?
HAProxy already provides many of the features that other solutions in the market are providing, such as Nginx, so I d...
What is your experience regarding pricing and costs for Kemp LoadMaster?
My primary advice is to carefully analyze your total cost of ownership (TCO) rather than just the initial purchase pr...
What needs improvement with Kemp LoadMaster?
The product could be improved with a more intuitive interface for complex configurations and more advanced analytics....
What is your primary use case for Kemp LoadMaster?
Our primary use case was traffic load balancing and distribution. The solution was essential for managing all inbound...
Do you recommend Loadbalancer.org?
Since Loadbalancer.org is an open-source solution, I would recommend this solution for smaller businesses that don’t ...
What needs improvement with Loadbalancer.org?
There is room for improvement in Loadbalancer.org in certain areas.
 

Also Known As

HAProxy Community Edition, HAProxy Enterprise Edition, HAPEE
LoadMaster Load Balancer
No data available
 

Overview

 

Sample Customers

Booking.com, GitHub, Reddit, StackOverflow, Tumblr, Vimeo, Yelp
Kent County Council, KEMP, SMA Solar Technology AG, RT€ Player , Victrix (Quebec, Canada), Texas A&M, Macmillan Cancer Support, Cisco, Austin Bank
Vodafone, NASA, Mercedes, NBC, Siemens, AT&T, Barclays, Zurich, Penn State University, Fiserv, Canon, Toyota, University of Cambridge, US Army, US Navy, Ocean Spray, ASOS, Pfizer, BBC, Bacardi, Monsoon, River Island, U.S Air Force, King's College London, NHS, Ricoh, Philips, Santander, TATA Communications, Ericcson, Ross Video, Evertz, TalkTalk TV, Giacom, Rapid Host.
Find out what your peers are saying about F5, NetScaler, HAProxy and others in Application Delivery Controllers (ADC). Updated: April 2026.
894,998 professionals have used our research since 2012.