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HAProxy pros and cons

Vendor: HAProxy

4.1 out of 5

47 reviews
92% willing to recommend

Pros & Cons summary

HAProxy delivers reliable performance with its ease of configuration and centralized SSL management, excelling in scalability for high transaction volumes. Advanced features like anti-DDOS and BGP route injection enhance performance, though room for improvement exists in statistics aggregation, dynamic ACL support, and documentation clarity. Pricing could be more affordable, and logging needs user-friendly mapping to documentation, making technical support essential for users navigating HAProxy's complex infrastructure.

Buyer's Guide

Get pricing advice, tips, use cases and valuable features from real users of this product.

Prominent pros & cons

PROS

HAProxy is highly reliable and stable, providing significant savings in potential downtime.

The ease of configuration, comprehensive documentation, and technical support are valuable features.

HAProxy's scalability exceeds expectations, handling high transaction volumes effortlessly.

Centralized SSL termination and configuration management save significant time and resources.

Advanced features like anti-DDOS, BGP route injection, and multiple load-balancing algorithms improve service performance.

CONS

HAProxy lacks aggregated statistics when nbproc is set to more than one, making it difficult to assess overall system metrics from a single point of view.

There's a need for dynamic ACL and port update support, essential for infrastructures relying on randomly allocated ports.

HAProxy's logging can be cryptic and challenging to navigate, especially when trying to map the logs to existing documentation.

Improving HAProxy's pricing model is necessary as there is room for making it more affordable.

Documentation requires enhancement with standard deployment details and a variety of scenarios for better user guidance.

HAProxy Pros review quotes

Shrinivas Devarkonda

Head of DevOps at TripFactory

Nov 17, 2025

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.

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reviewer2775702

Principal Engineer Manager at a manufacturing company with 501-1,000 employees

Nov 10, 2025

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.

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MR

Muhammad Choirul

Junior System Administrator & DevOps at a tech services company with 11-50 employees

Oct 3, 2025

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.

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reviewer2774310

DevOps engineer at a tech services company with 1-10 employees

Nov 2, 2025

HAProxy has positively impacted my organization by making it easier for me to manage configurations; I put configuration files on the Ceph storage shared across the whole cluster, allowing me to write my configuration, change it easily in one place, and reload it.

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Kaushlendra Singh

Manager - IT Infrastructure and Network at a manufacturing company with 1,001-5,000 employees

Aug 20, 2024

We use the solution for load balancing.

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Mehdi El Filahi

Co-Founder at tenekit

Apr 17, 2024

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.

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Manager server admin and security at Vivaconnect

Mar 4, 2024

HAProxy's TCP load balancer is excellent and super stable.

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Network Manager Admin at Yamaha

Jun 26, 2022

I can't speak to all of the HAProxy features because we don't use them all, but load balancing is very good.

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Roger Seelaender

UCaaS Engineering Manager at EarthLink

Oct 21, 2022

The features I find valuable in this solution are session control which automatically disconnects users that forget to log off, and the ability to write rules to either allow or block certain file requests.

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Kaushlendra Singh

Manager - IT Infrastructure and Network at a manufacturing company with 1,001-5,000 employees

Jul 20, 2022

The most valuable feature of HAProxy is that its open source.

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Show 10 more reviews (out of 45)

HAProxy Cons review quotes

Shrinivas Devarkonda

Head of DevOps at TripFactory

Nov 17, 2025

I'm unsure about the benchmark of those HTTP 2.0 requests on HAProxy.

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reviewer2775702

Principal Engineer Manager at a manufacturing company with 501-1,000 employees

Nov 10, 2025

A significant area for improvement in HAProxy is its tenancy model; managing multiple environments can be challenging, especially with mergers, acquisitions, or domain changes.

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MR

Muhammad Choirul

Junior System Administrator & DevOps at a tech services company with 11-50 employees

Oct 3, 2025

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.

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Free Report: HAProxy Reviews and More

Learn what your peers think about HAProxy. Get advice and tips from experienced pros sharing their opinions. Updated: April 2026.

893,221 professionals have used our research since 2012.

reviewer2774310

DevOps engineer at a tech services company with 1-10 employees

Nov 2, 2025

An alerting system would be better as I need to check log files if any backend is down.

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Kaushlendra Singh

Manager - IT Infrastructure and Network at a manufacturing company with 1,001-5,000 employees

Aug 20, 2024

The solution's dashboards and reports could be improved.

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Mehdi El Filahi

Co-Founder at tenekit

Apr 17, 2024

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.

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Manager server admin and security at Vivaconnect

Mar 4, 2024

HAProxy is very weak in the logging and monitoring part and requires improvement.

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Network Manager Admin at Yamaha

Jun 26, 2022

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.

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Roger Seelaender

UCaaS Engineering Manager at EarthLink

Oct 21, 2022

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.

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Kaushlendra Singh

Manager - IT Infrastructure and Network at a manufacturing company with 1,001-5,000 employees

Jul 20, 2022

HAProxy could improve by making the dashboards easier to use, and better reports and administration tickets.

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Show 10 more reviews (out of 45)

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