Best mongrel Alternatives & Competitors in 2025

A secure, fast, compliant, and very flexible web-server that has been optimized for high-performance environments.

Key lighttpd features:

Low Memory Footprint High Performance Easy to Configure Supports FastCGI, SCGI, and CGI

A high performance free open source web server powering busiest sites on the Internet.

Key nginx features:

High Performance Efficiency Versatility Security

Open Source

As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more.

Key DocRaptor features:

Ease of Use Customizable High-Quality Rendering Compliance

Try for free paid Free Trial $15.0 / Monthly (125+ Documents)

Apache httpd has been the most popular web server on the Internet since April 1996.

Key Apache HTTP Server features:

Open Source Cross-Platform Highly Customizable Robust Documentation

Open Source

High-performance web server.

Key Cherokee features:

User-Friendly Interface Lightweight and Fast Flexible Configuration Comprehensive Protocol Support

Open Source

XAMPP is a free and open-source cross-platform web server that is primarily used when locally developing web applications.

Key XAMPP features:

Ease of Installation Cross-Platform Pre-Configured Community Support

Internet Information Services is a web server for Microsoft Windows.

Key Microsoft IIS features:

Integration with Windows Server User-Friendly Interface Extensive Documentation and Support Security Features

The HTTP/2 Web Server with Automatic HTTPS.

Key Caddy features:

Automatic HTTPS Ease of Configuration Cross-Platform Built-in Reverse Proxy

Open Source

Wt (pronounced as witty) is a C++ library for developing web applications.

Key Wt features:

High Performance Rich Widgets C++ Language Built-in Security Features

Open Source

It's a portable server manager that you can go anywhere, anytime, in any computer and run your...

Key Portable Webserver features:

Portability Ease of Use Lightweight Self-contained

Serve a single directory over HTTP.

Key SimpleHTTPServer features:

Ease of Use No Installation Required Platform Independent

Nginx MariaDB Redis Php development stack for Windows, with Composer, Adminer, LetsEncrypt...

Key WinNMP features:

Easy Setup Portable All-in-One Solution Free and Open Source

WEBrick is a Ruby library providing simple HTTP web server services.

LiteSpeed Web Server (LSWS) is a high-performance Apache drop-in replacement.

Key LiteSpeed Web Server features:

Performance Built-in Caching Security Easy Apache Replacement