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Gunicorn

989
850
+ 1
78
Passenger

1.4K
290
+ 1
199
Puma

787
254
+ 1
19
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Pros of Gunicorn
Pros of Passenger
Pros of Puma
  • 34
    Python
  • 30
    Easy setup
  • 8
    Reliable
  • 3
    Light
  • 3
    Fast
  • 43
    Nginx integration
  • 36
    Great for rails
  • 21
    Fast web server
  • 19
    Free
  • 15
    Lightweight
  • 14
    Scalable
  • 13
    Rolling restarts
  • 10
    Multithreading
  • 9
    Out-of-process architecture
  • 6
    Low-bandwidth
  • 2
    Virtually infinitely scalable
  • 2
    Deployment error resistance
  • 2
    Mass deployment
  • 2
    High-latency
  • 1
    Many of its good features are only enterprise level
  • 1
    Apache integration
  • 1
    Secure
  • 1
    Asynchronous I/O
  • 1
    Multiple programming language support
  • 3
    Convenient
  • 3
    Free
  • 3
    Easy
  • 2
    Multithreaded
  • 2
    Default Rails server
  • 2
    First-class support for WebSockets
  • 2
    Consumes less memory than Unicorn
  • 1
    Lightweight
  • 1
    Fast

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Cons of Gunicorn
Cons of Passenger
Cons of Puma
    Be the first to leave a con
    • 0
      Cost (some features require paid/pro)
    • 0
      Uses `select` (limited client count)

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    What is Gunicorn?

    Gunicorn is a pre-fork worker model ported from Ruby's Unicorn project. The Gunicorn server is broadly compatible with various web frameworks, simply implemented, light on server resources, and fairly speedy.

    What is Passenger?

    Phusion Passenger is a web server and application server, designed to be fast, robust and lightweight. It takes a lot of complexity out of deploying web apps, adds powerful enterprise-grade features that are useful in production, and makes administration much easier and less complex.

    What is Puma?

    Unlike other Ruby Webservers, Puma was built for speed and parallelism. Puma is a small library that provides a very fast and concurrent HTTP 1.1 server for Ruby web applications.

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    What companies use Gunicorn?
    What companies use Passenger?
    What companies use Puma?

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    What tools integrate with Gunicorn?
    What tools integrate with Passenger?
    What tools integrate with Puma?
      No integrations found

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      Blog Posts

      What are some alternatives to Gunicorn, Passenger, and Puma?
      uWSGI
      The uWSGI project aims at developing a full stack for building hosting services.
      NGINX
      nginx [engine x] is an HTTP and reverse proxy server, as well as a mail proxy server, written by Igor Sysoev. According to Netcraft nginx served or proxied 30.46% of the top million busiest sites in Jan 2018.
      Flask
      Flask is intended for getting started very quickly and was developed with best intentions in mind.
      Waitress
      It is meant to be a production-quality pure-Python WSGI server with very acceptable performance. It has no dependencies except ones which live in the Python standard library. It runs on CPython on Unix and Windows under Python 2.7+ and Python 3.4+. It is also known to run on PyPy 1.6.0 on UNIX.
      gevent
      It is a coroutine -based Python networking library that uses greenlet to provide a high-level synchronous API on top of the libev or libuv event loop.
      See all alternatives