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HAProxy vs Nginx: catalog facts
HAProxy	Nginx
Free HAProxy Community Edition is free and open source. HAProxy Enterprise is a paid product.	Free Nginx open source is free. Nginx Plus is a paid subscription.
Linux, Self-hosted	Windows, macOS, Linux, Self-hosted
Handles extremely high connection rates with predictable latency Detailed health checking, queuing and rate limiting built in	Event-driven model handles large numbers of idle connections cheaply One binary covers static serving, reverse proxying, caching and load balancing
Configuration is its own language with a steep learning curve No native automatic certificate issuance; ACME is handled alongside it	Dynamic modules must usually be compiled in Several load-balancing and monitoring features are exclusive to the paid Nginx Plus
Self-hosted	Self-hosted
Open source	Open source
License: GPL-2.0	License: BSD-2-Clause
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.