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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.
Gunicorn is a tool in the Web Servers category of a tech stack.
Gunicorn is an open source tool with 7.5K GitHub stars and 1.4K GitHub forks. Here’s a link to Gunicorn's open source repository on GitHub

Who uses Gunicorn?

Companies
365 companies reportedly use Gunicorn in their tech stacks, including Instagram, reddit, and Accenture.

Developers
384 developers on StackShare have stated that they use Gunicorn.

Gunicorn Integrations

Pros of Gunicorn
31
Python
30
Easy setup
7
Reliable
2
Light
1
Fast
Decisions about Gunicorn

Here are some stack decisions, common use cases and reviews by companies and developers who chose Gunicorn in their tech stack.

Greg Smethells
CTO and Software Architect at Medstrat · | 3 upvotes · 27.8K views

We use AppOptics. I am curious what are the current leaders for APM for small companies (50 employees) that use Python, MariaDB, RabbitMQ, and Google Cloud Storage. We run both Celery and Gunicorn services. We are considering Datadog or some other deep code profiling tool that can spot I/O, DB, or other response time/request rate issues

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Gunicorn Alternatives & Comparisons

What are some alternatives to Gunicorn?
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

Gunicorn's Followers
636 developers follow Gunicorn to keep up with related blogs and decisions.