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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 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."
"HAProxy Enterprise Edition has been rock solid. We have essentially had no downtime caused by our load balancers in the last 10 months, because they’ve worked so well. Previously, our load balancers caused us multiple hours per year in downtime."
"I estimate that this product has saved our company hundreds, if not thousands, of dollars in possible downtime from previous load balancers. We make a lot of our money from online sales, so it is critical to have 99.9% uptime."
"It improves our scalability and responsiveness services to meet our demanding customer requirements."
"It is a crucial tool in ensuring smooth service provision without any interruptions."
"The most valuable feature of HAProxy is that its open source."
"The most valuable thing for me is TCP/IP Layer 4 stuff you can do with HAProxy. You can go down to the protocol level and make decisions on something."
"Software defined load balancing allows us to dynamically adjust and codify routing decisions. This speeds up development."
 

Cons

"The tool needs to incorporate better documentation and more example samples."
"Improving the documentation with multiple examples and scenarios would be beneficial. Most users encounter similar situations, so having a variety of scenarios readily available on the tool's website would be helpful. For instance, if I were part of the HAProxy team, I'd create a webpage with different scenarios and provide files for each scenario. This way, users wouldn't have to start from scratch every time."
"Pricing, monitoring, and reports can be improved."
"Dynamic update API. More things should be possible to be configured during runtime."
"The solution can be improved by controlling TCP behavior better and mandating to clients what the expected outcome must be in order to avoid receiving contestant timeout logs."
"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."
"HAProxy is very weak in the logging and monitoring part and requires improvement."
"The reconfigurability in terms of the tooling could be improved and maybe an editor plugin can be added."
"We need to handle new connections by dropping, or queuing them while the HAProxy restarts, and because HAProxy does not handle split config files."
 

Pricing and Cost Advice

"The tool is open-source."
"We are using HAProxy as an open-source."
"I think that the pricing is very fair, I would definitely recommend buying the Enterprise license."
"HAProxy is free software. There are optional paid products (support/appliances)."
"We use NGINX as well. However, because the health checks are a paid feature, I like to avoid it whenever possible​."
"Very good value for the money. One of the simplest licensing schemes in this category of products."
"HAProxy is a free open-source solution."
"The only cost is for the image manager, who is responsible for uploading the image, and that is trivial."
"When it comes to pricing HAProxy is free."
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Top Industries

By visitors reading reviews
Computer Software Company
17%
Financial Services Firm
15%
Educational Organization
9%
Manufacturing Company
9%
Computer Software Company
18%
Financial Services Firm
11%
Comms Service Provider
9%
Manufacturing Company
8%
 

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.
What is your experience regarding pricing and costs for HAProxy?
Our experience with pricing, setup costs, and licensing has been quite straightforward. Since we use the open-source edition, there are no licensing fees, with the main cost being the infrastructur...
 

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: October 2025.
872,098 professionals have used our research since 2012.