The G2 on HAProxy

HAProxy Pros and Cons: Top Advantages and Disadvantages

Quick AI Summary Based on G2 Reviews

Generated from real user reviews

Users praise HAProxy for its highly effective load balancing capabilities, ensuring robust and scalable traffic management. (100 mentions)

Users value the ease of use of HAProxy, simplifying workflows with its lightweight and reliable design. (99 mentions)

Users value the reliability of HAProxy, appreciating its consistent performance and ease of use in load balancing. (88 mentions)

Users praise HAProxy for its unmatched performance, appreciating its low resource usage and straightforward configuration options. (73 mentions)

Users value the configuration ease of HAProxy, noting its simplicity and dependable performance during setup. (59 mentions)

Users value the cost reduction offered by HAProxy compared to traditional load balancers, enhancing overall efficiency. (25 mentions)

Users find difficult configuration challenging, especially with complex syntax and the lack of a built-in interface. (47 mentions)

Users note a high complexity and steep learning curve, which can challenge newcomers to HAProxy. (43 mentions)

Users find the complex setup of HAProxy challenging, especially for beginners lacking prior experience or tools. (35 mentions)

Users find configuration complexity challenging, especially for beginners, leading to time-consuming troubleshooting and a lack of graphical interface. (31 mentions)

Users find complex configuration challenging, often requiring extra effort and resources for effective management and troubleshooting. (30 mentions)

Users find the difficult setup of HAProxy challenging, often struggling with the web UI and steep learning curve. (24 mentions)

Users find a steep learning curve with HAProxy, making initial setup and understanding challenging compared to alternatives. (18 mentions)

Top Pros or Advantages of HAProxy

1. Load Balancing

Users praise HAProxy for its highly effective load balancing capabilities, ensuring robust and scalable traffic management.

See 100 mentions

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Dr. Dastgeer S.

Small-Business (50 or fewer emp.)

5.0/5

"Best load balance"

What do you like about HAProxy?

Load balance part is the most effective way

Verified User

Mid-Market (51-1000 emp.)

4.5/5

"Great loadbalancer and WAF"

What do you like about HAProxy?

It's a REALLY fast load balancer with almost limitless functionality. It's very easy to use with Fusion, which is getting more features every now and

2. Ease of Use

Users value the ease of use of HAProxy, simplifying workflows with its lightweight and reliable design.

See 99 mentions

See Related User Reviews

Badri B.

Mid-Market (51-1000 emp.)

3.5/5

"Quick migration fron f5 device to haproxy. With minimum issues"

What do you like about HAProxy?

Ease of use, lite weight software app. Patch maintenance.

Verified User

Small-Business (50 or fewer emp.)

4.0/5

"Efficiency and reliability"

What do you like about HAProxy?

The simplicity, efficiency and reliability

3. Reliability

Users value the reliability of HAProxy, appreciating its consistent performance and ease of use in load balancing.

See 88 mentions

See Related User Reviews

Merve C.

Mid-Market (51-1000 emp.)

5.0/5

"Increase Efficiency Across Your Platforms"

What do you like about HAProxy?

HAProxy is a powerful and lightweight load balancer, and Windows users can also run it easily using WSL (Windows Subsystem for Linux) or Docker. The c

Verified User

Small-Business (50 or fewer emp.)

4.0/5

"Efficiency and reliability"

What do you like about HAProxy?

The simplicity, efficiency and reliability

4. Performance

Users praise HAProxy for its unmatched performance, appreciating its low resource usage and straightforward configuration options.

See 73 mentions

See Related User Reviews

Gavin R.

Mid-Market (51-1000 emp.)

5.0/5

"Most robust and flexible load balancer there is"

What do you like about HAProxy?

Customizations and performance are unmatched, requires additional config compared with managed services like ALB but significantly more powerful

Merve C.

Mid-Market (51-1000 emp.)

5.0/5

"Increase Efficiency Across Your Platforms"

What do you like about HAProxy?

HAProxy is a powerful and lightweight load balancer, and Windows users can also run it easily using WSL (Windows Subsystem for Linux) or Docker. The c

5. Configuration Ease

Users value the configuration ease of HAProxy, noting its simplicity and dependable performance during setup.

See 59 mentions

See Related User Reviews

Oluwatobi J.

Mid-Market (51-1000 emp.)

5.0/5

"My review"

What do you like about HAProxy?

My earliest use of Ha Proxy was an easy one to set up. It’s high performance is noteworthy.

Verified User

Small-Business (50 or fewer emp.)

3.5/5

"Great product"

What do you like about HAProxy?

It is east to configure and «just» works

6. Open Source

Users value the cost reduction offered by HAProxy compared to traditional load balancers, enhancing overall efficiency.

See 25 mentions

See Related User Reviews

ŠA

Šarūnas A.

Small-Business (50 or fewer emp.)

4.5/5

"No issues running it at home"

What do you like about HAProxy?

Open source nature, ease of self hosting at home

Verified User

Enterprise (> 1000 emp.)

4.0/5

"My review"

What do you like about HAProxy?

Its open! I like that this iniciativas are full open

Top Cons or Disadvantages of HAProxy

1. Difficult Configuration

Users find difficult configuration challenging, especially with complex syntax and the lack of a built-in interface.

See 47 mentions

See Related User Reviews

Ricardo R.

Enterprise (> 1000 emp.)

5.0/5

"Powerful, Reliable, and Flexible—But with a Steep Learning Curve"

What do you dislike about HAProxy?

Configuration syntax can be complex for beginners. No built-in graphical interface — management requires manual edits or third-party tools. Trou

Raul B.

Mid-Market (51-1000 emp.)

4.5/5

"Great tool"

What do you dislike about HAProxy?

It cannot be setup with CLI or scripts. It will be to have a templates for different instances. And multi tenancy

2. Learning Difficulty

Users note a high complexity and steep learning curve, which can challenge newcomers to HAProxy.

See 43 mentions

See Related User Reviews

Verified User

Mid-Market (51-1000 emp.)

4.0/5

"HAProxy review"

What do you dislike about HAProxy?

It can have a slightly steeper learning curve than eg. nginx.

Blanca L.

Enterprise (> 1000 emp.)

5.0/5

"HAProxy: Reliable, High-Performance Load Balancing with a Steep Learning Curve"

What do you dislike about HAProxy?

While its power is undeniable, the learning curve for its more advanced features can be somewhat steep for newcomers. Furthermore, its primary relianc

3. Complex Setup

Users find the complex setup of HAProxy challenging, especially for beginners lacking prior experience or tools.

See 35 mentions

See Related User Reviews

Ricardo R.

Enterprise (> 1000 emp.)

5.0/5

"Powerful, Reliable, and Flexible—But with a Steep Learning Curve"

What do you dislike about HAProxy?

Configuration syntax can be complex for beginners. No built-in graphical interface — management requires manual edits or third-party tools. Trou

Raul B.

Mid-Market (51-1000 emp.)

4.5/5

"Great tool"

What do you dislike about HAProxy?

It cannot be setup with CLI or scripts. It will be to have a templates for different instances. And multi tenancy

4. Complexity

Users find configuration complexity challenging, especially for beginners, leading to time-consuming troubleshooting and a lack of graphical interface.

See 31 mentions

See Related User Reviews

Ricardo R.

Enterprise (> 1000 emp.)

5.0/5

"Powerful, Reliable, and Flexible—But with a Steep Learning Curve"

What do you dislike about HAProxy?

Configuration syntax can be complex for beginners. No built-in graphical interface — management requires manual edits or third-party tools. Trou

Verified User

Enterprise (> 1000 emp.)

4.0/5

"Haproxy"

What do you dislike about HAProxy?

It's a bit hard to know all the configurations, but it's still worthwhile to look them up at least once.

5. Complex Configuration

Users find complex configuration challenging, often requiring extra effort and resources for effective management and troubleshooting.

See 30 mentions

See Related User Reviews

Ricardo R.

Enterprise (> 1000 emp.)

5.0/5

"Powerful, Reliable, and Flexible—But with a Steep Learning Curve"

What do you dislike about HAProxy?

Configuration syntax can be complex for beginners. No built-in graphical interface — management requires manual edits or third-party tools. Trou

Verified User

Enterprise (> 1000 emp.)

4.0/5

"Haproxy"

What do you dislike about HAProxy?

It's a bit hard to know all the configurations, but it's still worthwhile to look them up at least once.

6. Difficult Setup

Users find the difficult setup of HAProxy challenging, often struggling with the web UI and steep learning curve.

See 24 mentions

See Related User Reviews

Verified User

Small-Business (50 or fewer emp.)

4.0/5

"Great product"

What do you dislike about HAProxy?

Somethings when the set up with PFSense, it doesn't work

Gary O.

Mid-Market (51-1000 emp.)

5.0/5

"Excellent, highly scalable, secure load balancer"

What do you dislike about HAProxy?

Configuration is difficult for first timers but there are tons of resources to help.

7. Steep Learning Curve

Users find a steep learning curve with HAProxy, making initial setup and understanding challenging compared to alternatives.

See 18 mentions

See Related User Reviews

Verified User

Mid-Market (51-1000 emp.)

4.0/5

"HAProxy review"

What do you dislike about HAProxy?

It can have a slightly steeper learning curve than eg. nginx.

Blanca L.

Enterprise (> 1000 emp.)

5.0/5

"HAProxy: Reliable, High-Performance Load Balancing with a Steep Learning Curve"

What do you dislike about HAProxy?

While its power is undeniable, the learning curve for its more advanced features can be somewhat steep for newcomers. Furthermore, its primary relianc

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Verified User in Information Technology and Services

Mid-Market (51-1000 emp.)

12/3/2025

"Flexible, Powerful, and Extensible Solution for Customer Management"

5/5

What do you like best about HAProxy?

It's an incredibly flexible and powerful way to manage your incoming customer traffic.

It's also elegantly extensible, allowing us to easily build in our own custom product logic and rules. Review collected by and hosted on G2.com.

What do you dislike about HAProxy?

Nothing of any major note. It has a small bit of learning curve to get used to the syntax, but they have improved that over the years. Review collected by and hosted on G2.com.

Juwuan S.

Web Platform Engineer 2

Mid-Market (51-1000 emp.)

1/9/2025

"When a tool works. It just works!!!"

5/5

What do you like best about HAProxy?

My company has used HA since I started 6 years ago and all I can say when a tool is rock solid and it works it just works. We have 3 total proxys loadbalanced between our stage and production systems and it handles the load traffic perfectly. The support in the slack channel is a highlight especially if your trying to find a solution for a rule or a way to rewrite a rule to optimize it. Overall, I highly recommend HAProxy for anyone looking for a robust and efficient load balancing solution. It can also add WAF support if you don't want deal with a dedicated WAF provider. Review collected by and hosted on G2.com.

What do you dislike about HAProxy?

The dislike are small but can bite you from time to time for newcomers that use apache or nginx the language curve could be alot to over come but HA does have a good wiki to find out rules. Besides that I don't have any issues. Review collected by and hosted on G2.com.

Response from Nick Ramirez of HAProxy

edit

Thanks for reviewing HAProxy! The configuration language does have a learning curve, but it's good to hear that it hasn't stopped you from being successful.

Rachel L.

Enterprise (> 1000 emp.)

12/3/2025

"Flexible, Easy-to-Use, and Robust Load Balancing Features"

5/5

What do you like best about HAProxy?

The flexible and easy of use. Also the robust features around Loadbalancing Review collected by and hosted on G2.com.

What do you dislike about HAProxy?

I would like to see more expertise features in the free version Review collected by and hosted on G2.com.

Verified User in Computer Software

Mid-Market (51-1000 emp.)

10/14/2025

"Highly Adaptable with Great Load Balancing, but Complex Logging"

4.5/5

What do you like best about HAProxy?

This product is highly adaptable to the needs of our company and offers excellent load balancing capabilities for managing multiple applications. Review collected by and hosted on G2.com.

What do you dislike about HAProxy?

Implementing logging can often be complicated and challenging. Review collected by and hosted on G2.com.

Response from Nick Ramirez of HAProxy

edit

Thank you for this feedback. How can we make logging better?

Aman S.

Enterprise (> 1000 emp.)

12/4/2025

"Outstanding Open Source Solution"

5/5

What do you like best about HAProxy?

Opensource is the key and loved the experience with HAproxy. There is also enterprise for those who needs it Review collected by and hosted on G2.com.

What do you dislike about HAProxy?

Nothing.its a fantastic platform……. .. Review collected by and hosted on G2.com.

Nirmal M.

Associate Director

Enterprise (> 1000 emp.)

12/4/2025

Business partner of the seller or seller's competitor, not included in G2 scores.

"Excellent Solution for IP Forwarding. It worked well with ALB"

5/5

What do you like best about HAProxy?

Only available and Great solution for IP forwarding works well with load balancing with ALB Review collected by and hosted on G2.com.

What do you dislike about HAProxy?

Nothing specific.Expect to have an Agentic solution Review collected by and hosted on G2.com.

Jeff H.

Infrastructure Engineer

Mid-Market (51-1000 emp.)

1/14/2025

"Performance is outstanding."

5/5

What do you like best about HAProxy?

HAProxy stands out for its exceptional performance in dynamic and high-load environments, making. The addition of the Fusion control plane further enhances its capabilities, providing powerful tools for managing and securing large-scale deployments. Whether you need efficient load balancing, comprehensive observability, or advanced security, HAProxy with Fusion offers a robust solution.

Customer service was wonderul to work with. I had two initial questions that were solved easily from support over email. This made implementation quick and easy. Converting our NGINX over to HAProxy was a trivial and the Fusion Control Plan intergrates well and makes changes and versioning easy. Review collected by and hosted on G2.com.

What do you dislike about HAProxy?

For smaller deployments a single node with Fusion deployment would be ideal. We work with a lot of SMB businesses that the price is limiting our options for HAProxy. Review collected by and hosted on G2.com.

Response from Nick Ramirez of HAProxy

edit

Thank you for sharing your experience migrating from NGINX to HAProxy! And for sharing feedback about smaller deployments.