Top 12 Open-Source Alternatives to Gunicorn

Product categories

Application Server Development Tools HTTP/2 Web Server Java Load Balancer / Reverse Proxy Open Source Ruby Application Server Web And Application Servers Web Servers

Summary

The top open-source alternatives to Gunicorn are Apache Tomcat, Apache HTTP Server, and Phusion Passenger. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Apache Tomcat Landing Page
1

Apache Tomcat

An open source software implementation of the Java Servlet and JavaServer Pages technologies
Pricing:
- Open Source
#Web And Application Servers #Application Server #Java 14 social mentions
Apache HTTP Server Landing Page
2

Apache HTTP Server

Apache httpd has been the most popular web server on the Internet since April 1996
Pricing:
- Open Source
#Web And Application Servers #Web Servers #Application Server 50 social mentions
Phusion Passenger Landing Page
3

Phusion Passenger

Phusion Passenger is a multi-language (Ruby, Python, Node) web & app server which can integrate into Apache and Nginx
Pricing:
- Open Source
#Web Servers #HTTP/2 Web Server #Web And Application Servers 1 social mentions
Wildfly Landing Page
4

Wildfly

WildFly is a flexible, lightweight application server.
Pricing:
- Open Source
#Web And Application Servers #Web Servers #Application Server 1 social mentions
Apache ZooKeeper Landing Page
5

Apache ZooKeeper

Apache ZooKeeper is an effort to develop and maintain an open-source server which enables highly reliable distributed coordination.
Pricing:
- Open Source
#Web And Application Servers #Web Servers #Application Server 29 social mentions
Unicorn Landing Page
6

Unicorn

Unicorn is an HTTP server for Rack applications designed to only serve fast clients on low-latency, high-bandwidth connections.
Pricing:
- Open Source
#Web And Application Servers #Application Server #Ruby Application Server 1 social mentions
web2py Landing Page
7

web2py

Web2py is an open source web application framework.
Pricing:
- Open Source
#Web And Application Servers #Web Servers #Application Server 1 social mentions
nginx Landing Page
8

nginx

A high performance free open source web server powering busiest sites on the Internet.
Pricing:
- Open Source
#Web And Application Servers #Web Servers #Application Server 46 social mentions
Puma Landing Page
9

Puma

A concurrent web server for Ruby.
Pricing:
- Open Source
#Web And Application Servers #Application Server #Web Servers 3 social mentions
Undertow Landing Page
10

Undertow

Undertow is a webserver written in Java, providing both blocking and non-blocking API’s based on NIO.
Pricing:
- Open Source
#Web And Application Servers #Web Servers #Application Server
Lwan Landing Page
11

Lwan

Lwan is a high-performance web server with a low disk and memory footprint.
Pricing:
- Open Source
#Web Servers #Web And Application Servers #Application Server 1 social mentions
Cherokee Landing Page
12

Cherokee

High-performance web server
Pricing:
- Open Source
#Web And Application Servers #Web Servers #Application Server