HAProxy logo

HAProxy

The Reliable, High Performance TCP/HTTP Load Balancer
2.2K
1.8K
+ 1
551

What is HAProxy?

HAProxy (High Availability Proxy) is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications.
HAProxy is a tool in the Load Balancer / Reverse Proxy category of a tech stack.

Who uses HAProxy?

Companies
656 companies reportedly use HAProxy in their tech stacks, including Instagram, Twitter, and reddit.

Developers
1480 developers on StackShare have stated that they use HAProxy.

HAProxy Integrations

Datadog, Netdata, Tutum, Honeycomb, and Keepalived are some of the popular tools that integrate with HAProxy. Here's a list of all 12 tools that integrate with HAProxy.
Pros of HAProxy
130
Load balancer
100
High performance
68
Very fast
56
Proxying for tcp and http
55
SSL termination
30
Open source
27
Reliable
20
Free
18
Well-Documented
12
Very popular
7
Runs health checks on backends
7
Suited for very high traffic web sites
6
Scalable
5
Ready to Docker
4
Powers many world's most visited sites
2
Work with NTLM
2
Ssl offloading
2
Simple
Decisions about HAProxy

Here are some stack decisions, common use cases and reviews by companies and developers who chose HAProxy in their tech stack.

Shared insights
on
Envoy
HAProxy
Traefik
NGINX

We are looking to configure a load balancer with some admin UI. We are currently struggling to decide between NGINX, Traefik, HAProxy, and Envoy. We will use a load balancer in a containerized environment and the load balancer should flexible and easy to reload without changes in case containers are scaled up.

See more

Blog Posts

+30
25
15000
+17
18
5602
+44
109
49870

Jobs that mention HAProxy as a desired skillset

See all jobs

HAProxy Alternatives & Comparisons

What are some alternatives to HAProxy?
NGINX
nginx [engine x] is an HTTP and reverse proxy server, as well as a mail proxy server, written by Igor Sysoev. According to Netcraft nginx served or proxied 30.46% of the top million busiest sites in Jan 2018.
Traefik
A modern HTTP reverse proxy and load balancer that makes deploying microservices easy. Traefik integrates with your existing infrastructure components and configures itself automatically and dynamically.
Envoy
Originally built at Lyft, Envoy is a high performance C++ distributed proxy designed for single services and applications, as well as a communication bus and “universal data plane” designed for large microservice “service mesh” architectures.
Squid
Squid reduces bandwidth and improves response times by caching and reusing frequently-requested web pages. Squid has extensive access controls and makes a great server accelerator. It runs on most available operating systems, including Windows and is licensed under the GNU GPL.
Varnish
Varnish Cache is a web application accelerator also known as a caching HTTP reverse proxy. You install it in front of any server that speaks HTTP and configure it to cache the contents. Varnish Cache is really, really fast. It typically speeds up delivery with a factor of 300 - 1000x, depending on your architecture.
See all alternatives

HAProxy's Followers
1806 developers follow HAProxy to keep up with related blogs and decisions.