HAProxy — #3 Alternative to NGINX Plus
Gold-standard C load balancer delivering millions of L4/L7 requests per second
HAProxy powers the world’s highest-traffic edge infrastructures with hitless reloads, Runtime API dynamic backend scaling, stick-table DDoS rate limiting, and ultra-low CPU/memory overhead.
License: GPL-2.0 · Pricing: Free & Open Source · Compare all NGINX Plus alternatives · Official Website