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HAProxy vs VMWare Avi Load Balancer comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 17, 2024

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
4.5
Many users see quick ROI with VMWare Avi Load Balancer, but results vary due to differing use cases.
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
6.3
VMWare Avi Load Balancer's customer service is efficient but experiences variability in support ticket volume and user interaction.
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
 

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
7.6
VMWare Avi Load Balancer is praised for efficiency and scalability, despite some challenges due to specific infrastructure.
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
Scalability-wise, VMWare Avi Load Balancer is good.
Trainer/Consultant at Koenig Solutions Pvt. Ltd.
 

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
7.9
VMWare Avi Load Balancer is stable and efficient, ideal for small to medium businesses, with some concerns under heavy loads.
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
From a stability point of view, VMWare Avi Load Balancer is stable.
Trainer/Consultant at Koenig Solutions Pvt. Ltd.
 

Room For Improvement

HAProxy needs a revamped GUI, improved APIs, better AWS integration, real-time config, enhanced docs, and stronger monitoring and security.
VMWare Avi Load Balancer requires better pricing, documentation, security features, integration, analytics, and interoperability with hyperscale and Kubernetes.
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
The documentation needs to improve, as it was really handy a couple of years back.
Trainer/Consultant at Koenig Solutions Pvt. Ltd.
 

Setup Cost

Enterprise users value HAProxy's competitive pricing and cost-effective licensing, especially compared to F5 and Citrix, despite initial setup costs.
VMware Avi Load Balancer is cost-effective with flexible pricing, differing experiences, and generally positive feedback on affordability.
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.
The VMWare Avi Load Balancer excels in usability, integration, analytics, and scalability, outperforming competitors in load balancing and application debugging.
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
The features I find most valuable in VMware Avi Load Balancer are the load balancing part and the WAF part.
Trainer/Consultant at Koenig Solutions Pvt. Ltd.
 

Categories and Ranking

HAProxy
Ranking in Application Delivery Controllers (ADC)
3rd
Average Rating
8.2
Reviews Sentiment
7.2
Number of Reviews
47
Ranking in other categories
Web Application Firewall (WAF) (14th), Distributed Denial-of-Service (DDoS) Protection (6th), Bot Management (7th), Service Mesh (2nd)
VMWare Avi Load Balancer
Ranking in Application Delivery Controllers (ADC)
12th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
9
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of February 2026, in the Application Delivery Controllers (ADC) category, the mindshare of HAProxy is 9.7%, down from 12.4% compared to the previous year. The mindshare of VMWare Avi Load Balancer is 5.4%, up from 4.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Delivery Controllers (ADC) Market Share Distribution
ProductMarket Share (%)
HAProxy9.7%
VMWare Avi Load Balancer5.4%
Other84.9%
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.
Vishal Bhatia - PeerSpot reviewer
Trainer/Consultant at Koenig Solutions Pvt. Ltd.
Analytics dashboard has provided deep visibility and delivers reliable load balancing and WAF protection
Regarding the benefit of VMWare Avi Load Balancer's WAF protection, I think the heuristics are pretty common. I do not come across many trainings for the WAF part, but once in a while. I cannot comment much on whether organizations are using it or not. In terms of VMWare Avi Load Balancer's multi-cloud capability, I have not come across many organizations using it across the different platforms. It is primarily used in the VMware context only. I have not seen anyone using it purely from a Linux or AWS or Azure perspective. Most of the organizations I come across are primarily using it from the VMware side. As for the API-driven infrastructure as code feature of VMWare Avi Load Balancer, because I am not from the developer side, I think that is more for the developers or maybe for integrating some new solutions and digging something deeper into it. That is quite handy. Regarding ease of use with VMWare Avi Load Balancer, that is pretty okay. For implementation, people find it quite okay to implement. There is nothing much from the implementation side. I think VMWare should promote their product more, particularly from the VMWare Avi Load Balancer side. It may be promoted a little bit more. Apart from Avi, most of those are already well-known. I would rate this review an 8 out of 10.
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
11%
Comms Service Provider
9%
Manufacturing Company
8%
Financial Services Firm
20%
Comms Service Provider
12%
Computer Software Company
10%
Government
9%
 

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 Business2
Midsize Enterprise3
Large Enterprise4
 

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-source product. HAProxy is also a good choice for someone looking for a stable ...
What do you like most about HAProxy?
The solution is effective in managing our traffic.
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 do you like most about Avi Networks Software Load Balancer?
The solution has simplified our network infrastructure management.
What needs improvement with Avi Networks Software Load Balancer?
The network analytics and monitoring features are not effective. The product does not provide deep troubleshooting features. The solution must provide public IP features. F5 provides such features.
 

Also Known As

HAProxy Community Edition, HAProxy Enterprise Edition, HAPEE
Avi Software Load Balancer
 

Overview

 

Sample Customers

Booking.com, GitHub, Reddit, StackOverflow, Tumblr, Vimeo, Yelp
Palo Alto Networks, DGDean, Swisslos
Find out what your peers are saying about HAProxy vs. VMWare Avi Load Balancer and other solutions. Updated: February 2026.
881,707 professionals have used our research since 2012.