HAProxy excels by seamlessly merging legendary high-throughput performance and QUIC efficiency with the intelligent real-time traffic control of stick tables, robust integrated security through its WAF and DDoS protection, and granular observability driven by its deterministic configuration. Review collected by and hosted on G2.com.

steep learning curve driven by a complex, verbose configuration syntax that can feel intimidatingly rigid Review collected by and hosted on G2.com.

HAProxy is engineered for speed and low resource usage. It can push millions of requests per second on modest hardware while staying extremely lightweight (often ~50 MB RAM) Review collected by and hosted on G2.com.

The config language is extremely powerful but notoriously dense, cryptic, and unforgiving. Review collected by and hosted on G2.com.

Stability, efficient, security and scalability Review collected by and hosted on G2.com.

Fusion non open also to community edition Review collected by and hosted on G2.com.

I appreciate HAProxy for its reliable load balancing capabilities, which I've extensively utilized for over 12 years in production and numerous cloud environments. Its nature as a free, open-source solution adds to its appeal, particularly because it maintains low latency in complex environments. I find it incredibly easy to configure, resulting in a straightforward setup process, and am impressed by its robust capabilities that ensure high performance without frequent errors. This makes HAProxy highly dependable for balancing applications effectively. Personally, I've used it alongside tools like Keepalived, and although I don't use it exclusively, it remains a top choice for its seamless operational functionality. Review collected by and hosted on G2.com.

I can’t think of anything Review collected by and hosted on G2.com.

I had a satisfying interaction with HA Proxy. The best part was the solid setup, and it felt like a strong option for security. I also appreciated being able to talk with them in detail and get my questions addressed. Review collected by and hosted on G2.com.

Nope nothing about this HA Proxy. Learning new things with them Review collected by and hosted on G2.com.

Its performance is nothing short of legendary; it handles staggering amounts of traffic with such negligible resource usage it feels like magic. But its true genius lies in its configuration. It’s a work of art—a pure, text-based DSL that gives you god-like control over every single packet. We wield its ACLs and stick tables like a surgeon’s scalpel to dissect and annihilate threats in real-time. It’s not just a tool; it’s a masterpiece of engineering that provides absolute, rock-solid stability. Review collected by and hosted on G2.com.

Honestly, framing anything about HAProxy as "negative" is to fundamentally misunderstand its purpose. People mention the "steep learning curve" or its reliance on the command line as if those are flaws. That's not a flaw; that's a feature. It's a deliberate design choice that filters out the dabblers. HAProxy doesn't hold your hand with a flashy GUI because it's a professional-grade weapon, not a toy. Review collected by and hosted on G2.com.

What I value most in HAProxy is its predictability and low operational overhead. It performs its core task of traffic management with high efficiency and minimal resource consumption, which is a key requirement for our infrastructure. Its text-based configuration, while austere, allows for precise, repeatable deployments and integrates cleanly into our automation and version control workflows. It’s a stable component that does exactly what it's expected to do without introducing unnecessary complexity. In essence, it functions as a reliable utility that doesn't require constant attention. Review collected by and hosted on G2.com.

Its strength in text-based configuration is also its primary rigidity. Debugging complex rules or troubleshooting routing issues can become inefficient and opaque, lacking the visualization tools or dynamic management offered by more modern solutions. Furthermore, any functionality beyond core load balancing, such as advanced WAF integration, often requires add-on solutions or enterprise versions, which complicates the architecture. Review collected by and hosted on G2.com.

What I like best about HAProxy is its exceptional reliability and outstanding performance. It has been the cornerstone of our infrastructure, effortlessly handling immense traffic loads with remarkably low latency. The configuration is both straightforward and incredibly flexible, allowing us to implement complex traffic routing and load balancing rules with ease. This simplicity, combined with its powerful feature set, saves us a significant amount of time. We have complete confidence in HAProxy's stability; it consistently ensures high availability for our critical applications. The ability to scale our services without compromising speed or reliability is invaluable. It’s a robust, efficient, and well-documented solution that has proven to be indispensable for our operations. Ultimately, it provides peace of mind, which is the highest praise I can give. Review collected by and hosted on G2.com.

While its power is undeniable, the learning curve for its more advanced features can be somewhat steep for newcomers. Furthermore, its primary reliance on command-line configuration, while efficient, might present an initial hurdle for teams more accustomed to graphical user interfaces for management. Review collected by and hosted on G2.com.

The best about HAProxy is the precise ACL-based routing and how predictable it behaves under load—debugging is straightforward and rarely feels like guesswork. Review collected by and hosted on G2.com.

Nothing like that which is feel like a con. Review collected by and hosted on G2.com.

Quality separation of definitions. One configuration error won't take a server down Review collected by and hosted on G2.com.

No pre flight check? Rather know about server stability before the crash Review collected by and hosted on G2.com.