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Envoy vs HAProxy 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:
 

Categories and Ranking

Envoy
Ranking in Service Mesh
4th
Average Rating
9.0
Number of Reviews
1
Ranking in other categories
No ranking in other categories
HAProxy
Ranking in Service Mesh
2nd
Average Rating
8.2
Reviews Sentiment
7.3
Number of Reviews
43
Ranking in other categories
Application Delivery Controllers (ADC) (4th), Web Application Firewall (WAF) (19th), Distributed Denial-of-Service (DDoS) Protection (24th), Bot Management (12th)
 

Mindshare comparison

As of October 2025, in the Service Mesh category, the mindshare of Envoy is 22.5%, up from 17.1% compared to the previous year. The mindshare of HAProxy is 14.7%, up from 13.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Service Mesh Market Share Distribution
ProductMarket Share (%)
HAProxy14.7%
Envoy22.5%
Other62.8%
Service Mesh
 

Featured Reviews

AM
A simple solution that works as a proxy server and load balancer
I used the solution to build a project's proxy server and load balancer I found Envoy simple to use compared to alternatives like Traefik. The tool needs to incorporate better documentation and more example samples.  I haven't contacted the tool's support team.  I chose Envoy for the POC…
Mehdi El Filahi - PeerSpot reviewer
Useful for for small and quick load-balancing tasks
What I like best about the product is its simplicity and speed. When you need to set up a load balancer quickly, HAProxy offers options like sticky sessions and round-robin. It's also fast to configure, including adding SSL for security. While it may have fewer options than other solutions like F5, HAProxy gets the job done for basic load-balancing tasks. The reliability features of HAProxy were particularly useful in a scenario where I needed to test load balancing between two Tomcats. Since these domains were inaccessible, I set up a third Docker with HAProxy, which had access to the Tomcat domains. I then configured HAProxy to handle the load balancing. This setup allowed the client to interact with HAProxy. The solution's integration with other elements is easy.

Quotes from Members

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

Pros

"I found Envoy simple to use compared to alternatives like Traefik."
"I have found HAProxy very helpful in replicating production environment architecture in a development and testing environment."
"The most important features would be the load-balancing of HTTP and TCP requests, according to multiple LB-algorithms (busyness, weighted-busyness, round robin, traffic, etc). Another important feature that we cannot live without is the username/passwd authentication for legacy systems that had none."
"We use it as a load balancer for our application servers."
"With centralized SSL termination and automated renewals now in place, that time requirement has dropped to nearly zero hours, translating to dozens of hours saved per year."
"HAProxy potentially has a good return on investment"
"We did not need technical support because the documentation is good."
"I can't speak to all of the HAProxy features because we don't use them all, but load balancing is very good."
"I can simplify configurations of many internal services (e.g. Web server configs) by moving some elements (like SSL) to HAProxy. I can also disable additional applications, like Varnish, by moving traffic shaping configurations to HAProxy."
 

Cons

"The tool needs to incorporate better documentation and more example samples."
"We would like to see dynamic ACL and port update support. Our infrastructure relies on randomly allocated ports and this feature would allow us to update without restarting the process."
"We need to handle new connections by dropping, or queuing them while the HAProxy restarts, and because HAProxy does not handle split config files."
"There are three main areas to improve: 1) Make remote management more modern by adding API. 2) Propose a general HA ​solution for HAProxy (no I'm using keepalived for this). 3) Thread option should be a bit more stable."
"I would like to see better search handling, and a user interface, with a complete functional graphical unit"
"They should introduce one feature that I know many people, including me, are waiting for: HAProxy should have provide hot-swipe for back-end servers. Also, they need a more detailed GUI for monitoring and configuration."
"While troubleshooting, we are having some difficulties. There are no issues when it is running; it is stable and very good; however, if there is a troubleshooting issue or an incident occurs, we will have issues because this is open-source."
"The GUI should be more responsive and show the detailed output of logs."
"If nbproc = 2, you will have two processes of HAProxy running. However, the stats of HAProxy will not be aggregated, meaning you don't really know the collective status in a single point of view."
 

Pricing and Cost Advice

"The tool is open-source."
"If you don't have expertise then go with the licensed version. Otherwise, open-source is the best solution."
"Test/lab virtual machines can be installed without a licence. They can't be used for performance testing but otherwise behave like production nodes."
"We use NGINX as well. However, because the health checks are a paid feature, I like to avoid it whenever possible​."
"I use the open-source version of the product. I don't have experience with the licensed version of the solution."
"HAProxy is a free open-source solution."
"The price is well worth it. HAProxy Enterprise Edition paid for itself within months, simply due to the resiliency it brings. It was a bit more expensive than we were originally interested in paying, but we are thankful we chose to go with HAProxy."
"It is free of cost."
"The product is open source."
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Top Industries

By visitors reading reviews
Computer Software Company
17%
Financial Services Firm
16%
Manufacturing Company
10%
Educational Organization
9%
Computer Software Company
18%
Financial Services Firm
11%
Comms Service Provider
9%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise13
Large Enterprise15
 

Questions from the Community

What needs improvement with Envoy?
The tool needs to incorporate better documentation and more example samples.
What is your primary use case for Envoy?
I used the solution to build a project's proxy server and load balancer.
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.
 

Comparisons

 

Also Known As

No data available
HAProxy Community Edition, HAProxy Enterprise Edition, HAPEE
 

Overview

 

Sample Customers

Airbnb, Booking.com, Cookpad, Digital Ocean, Ebay, F5, Google, GO-JEK, Grubhub, IBM, Medium, Microsoft, Netflix, Pinterest, Salesforce.com, Snapchat, Stripe, Square, Tencent, Twilio, Uber, Verizon, VMware, Vsco, Yahoo Japan, Yelp
Booking.com, GitHub, Reddit, StackOverflow, Tumblr, Vimeo, Yelp
Find out what your peers are saying about Isito, HAProxy, Kong and others in Service Mesh. Updated: September 2025.
868,759 professionals have used our research since 2012.