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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
7.2
Number of Reviews
47
Ranking in other categories
Application Delivery Controllers (ADC) (3rd), Web Application Firewall (WAF) (14th), Distributed Denial-of-Service (DDoS) Protection (6th), Bot Management (7th)
 

Mindshare comparison

As of January 2026, in the Service Mesh category, the mindshare of Envoy is 21.5%, up from 16.4% compared to the previous year. The mindshare of HAProxy is 13.9%, 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 (%)
HAProxy13.9%
Envoy21.5%
Other64.6%
Service Mesh
 

Featured Reviews

AM
Full-stack Developer at ImageVision.ai
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…
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.

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."
"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."
"It improves our scalability and responsiveness services to meet our demanding customer requirements."
"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 coming from customers or other sources, and there are no loopholes, disconnects, or gaps in the entire data flow."
"​It has allowed us to evenly distribute the load across a number of servers, and check their health and automatically react to errors."
"​​Reliability. HAProxy is the most reliable product I have ever used."
"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."
"The ability to handle a sequence of front- and back-ends gives the user the opportunity to send traffic through different services."
"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."
 

Cons

"The tool needs to incorporate better documentation and more example samples."
"Pricing, monitoring, and reports can be improved."
"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."
"The web stats UI, which provides the status of the health and numbers, could greatly benefit from having a RESTful interface to control the load-balanced nodes. Although there is a hack around the UI (by issuing a POST request to HAProxy with parameters), a RESTful interface would greatly improve the automation process (through Chef and Ansible)."
"A significant area for improvement in HAProxy is its tenancy model; managing multiple environments can be challenging, especially with mergers, acquisitions, or domain changes."
"Documentation could be improved."
"The logging functionality could use improvement, as it is a little cryptic."
"The reconfigurability in terms of the tooling could be improved and maybe an editor plugin can be added."
"The solution's dashboards and reports could be improved."
 

Pricing and Cost Advice

"The tool is open-source."
"The licensing fee for the solution is $690 per unit annually."
"Very good value for the money. One of the simplest licensing schemes in this category of products."
"HAProxy is a free open-source solution."
"When it comes to pricing HAProxy is free."
"It is free of cost."
"HAProxy is free open-source software."
"Test/lab virtual machines can be installed without a licence. They can't be used for performance testing but otherwise behave like production nodes."
"I use the open-source version of the product. I don't have experience with the licensed version of the solution."
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Top Industries

By visitors reading reviews
Computer Software Company
17%
Financial Services Firm
15%
Educational Organization
10%
Comms Service Provider
10%
Computer Software Company
15%
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 Business17
Midsize Enterprise15
Large Enterprise16
 

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?
Since we used the open-source version, we were not concerned about pricing, setup cost, or licensing.
 

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: December 2025.
881,082 professionals have used our research since 2012.