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Nginx vs HAProxy: catalog facts
Nginx	HAProxy
Free Nginx open source is free. Nginx Plus is a paid subscription.	Free HAProxy Community Edition is free and open source. HAProxy Enterprise is a paid product.
Windows, macOS, Linux, Self-hosted	Linux, Self-hosted
Event-driven model handles large numbers of idle connections cheaply One binary covers static serving, reverse proxying, caching and load balancing	Handles extremely high connection rates with predictable latency Detailed health checking, queuing and rate limiting built in
Dynamic modules must usually be compiled in Several load-balancing and monitoring features are exclusive to the paid Nginx Plus	Configuration is its own language with a steep learning curve No native automatic certificate issuance; ACME is handled alongside it
Self-hosted	Self-hosted
Open source	Open source
License: BSD-2-Clause	License: GPL-2.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.