NGINX vs Microsoft IIS Comparison in 2025

NGINX

16Alternatives

Microsoft IIS

14Alternatives

Microsoft IIS

Overview

About NGINX

A high performance free open source web server

Nginx (engine x) is a high performance open source web server powering the biggest web sites on the Internet.

About Microsoft IIS

Internet Information Services is a web server for Microsoft Windows

A flexible & easy-to-manage and secure Web server for hosting web applications on the Web.

nginx.org

iis.net

NGINX categories

Microsoft IIS categories

Web Servers

Alternatives

NGINX and Microsoft IIS have 11 alternatives in common. Among them are Unicorn, Perfect, Harp, Puma, Sanic, Nodal.js. When comparing NGINX and Microsoft IIS, you can also check the following apps.

NGINX alternatives

Total alternativesTotal

HAProxy

A high performance TCP/HTTP Load Balancer

lighttpd

A lightweight and high-performance event-driven web server

Caddy

An Efficient Web Server with Automatic HTTPS

Traefik

A leading open-source reverse proxy and load balancer

Varnish

An open source reverse HTTP proxy with extensive caching abilities

All NGINX alternatives

Microsoft IIS alternatives

Total alternativesTotal

lighttpd

A lightweight and high-performance event-driven web server

XAMPP

An open-source cross-platform web server that is used primarily for local development

Caddy

An Efficient Web Server with Automatic HTTPS

Gunicorn

Gunicorn (Green Unicorn) is a WSGI HTTP Server for UNIX, fast clients and sleepy applications

Perfect

A framework for developing web and other REST services in the Swift programming language

All Microsoft IIS alternatives