HAProxy vs Traefik
A side-by-side comparison of two self-hosted reverse proxy & gateways options — licensing, setup difficulty, resource needs, and what each one replaces.
HAProxy
Reliable, high-performance TCP/HTTP load balancer
VS
Traefik
Cloud-native reverse proxy and load balancer
| Feature | HAProxy | Traefik |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 89 · Excellent | 100 · Excellent |
| Category | Reverse Proxy & Gateways | Reverse Proxy & Gateways |
| License | GPL-2.0 | MIT |
| Language | C | Go |
| Setup difficulty | Hard | Medium |
| Min. RAM | 128 MB | 128 MB |
| Deployment | docker, binary, bare-metal | docker, kubernetes, helm |
| GitHub stars | ★ 6,873 | ★ 64,942 |
| First released | 2001 | 2015 |
| Replaces | F5 BIG-IP, AWS ELB | HAProxy, AWS ELB |
What are HAProxy and Traefik?
HAProxy
HAProxy is a fast and reliable open-source load balancer and reverse proxy for TCP and HTTP applications. It is widely deployed for high-availability and high-traffic sites.
- High-performance load balancing
- TCP and HTTP modes
- Detailed health checks
- Runtime API
Traefik
Traefik is a modern reverse proxy and load balancer that automatically discovers services and configures routing. It integrates natively with Docker, Kubernetes, and other orchestrators.
- Automatic service discovery
- Native Docker and Kubernetes support
- Let's Encrypt integration
- Live configuration reload
HAProxy vs Traefik: key differences
HAProxy is written in C, while Traefik is built with Go. Licensing differs — GPL-2.0 for HAProxy versus MIT for Traefik. HAProxy is the more established project (first released 2001), while Traefik arrived in 2015. Traefik has the considerably larger community, at 64,942 GitHub stars versus 6,873.
Why pick each one
Choose HAProxy if…
- Released under the GPL-2.0 license
- First-class Docker support for quick deployment
- Mature project with 6.9k GitHub stars
- Written in C
Choose Traefik if…
- Automatic service discovery
- Built-in Let's Encrypt
- First-class Docker support
Watch out for
- Configuration learning curve
- Debugging can be opaque
Frequently asked questions
Is HAProxy or Traefik better?
Traefik is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider HAProxy if its specific feature set fits your needs better.
Are HAProxy and Traefik free and open-source?
Yes. HAProxy is licensed under GPL-2.0 and Traefik under MIT. Both can be self-hosted at no software cost.
Can I run HAProxy and Traefik with Docker?
HAProxy: yes. Traefik: yes.