# Gunicorn

Gunicorn is maintained by volunteers. If it powers your production, please consider supporting us:
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[![PyPI version](https://img.shields.io/pypi/v/gunicorn.svg?style=flat)](https://pypi.python.org/pypi/gunicorn) [![Supported Python versions](https://img.shields.io/pypi/pyversions/gunicorn.svg)](https://pypi.python.org/pypi/gunicorn) [![Build Status](https://github.com/benoitc/gunicorn/actions/workflows/tox.yml/badge.svg)](https://github.com/benoitc/gunicorn/actions/workflows/tox.yml) Gunicorn 'Green Unicorn' is a Python WSGI HTTP Server for UNIX. It's a pre-fork worker model ported from Ruby's [Unicorn](https://bogomips.org/unicorn/) project. The Gunicorn server is broadly compatible with various web frameworks, simply implemented, light on server resource usage, and fairly speedy. **New in v25**: Per-app worker allocation for dirty arbiters, HTTP/2 support (beta)! ## Quick Start ```bash pip install gunicorn gunicorn myapp:app --workers 4 ``` For ASGI applications (FastAPI, Starlette): ```bash gunicorn myapp:app --worker-class asgi ``` ## Features - WSGI support for Django, Flask, Pyramid, and any WSGI framework - **ASGI support** for FastAPI, Starlette, Quart - **HTTP/2 support** (beta) with multiplexed streams - **Dirty Arbiters** (beta) for heavy workloads (ML models, long-running tasks) - uWSGI binary protocol for nginx integration - Multiple worker types: sync, gthread, gevent, asgi - Graceful worker process management - Compatible with Python 3.9+ ## Documentation Full documentation at https://gunicorn.org - [Quickstart](https://gunicorn.org/quickstart/) - [Configuration](https://gunicorn.org/configure/) - [Deployment](https://gunicorn.org/deploy/) - [Settings Reference](https://gunicorn.org/reference/settings/) ## Community - Report bugs on [GitHub Issues](https://github.com/benoitc/gunicorn/issues) - Chat in [#gunicorn](https://web.libera.chat/?channels=#gunicorn) on [Libera.chat](https://libera.chat/) - See [CONTRIBUTING.md](CONTRIBUTING.md) for contribution guidelines ## Support Powering Python apps since 2010. Support continued development. [![Become a Sponsor](https://img.shields.io/badge/Become_a_Sponsor-❤-ff69b4)](https://gunicorn.org/sponsor/) ### Sponsors Enki Multimedia ## License Gunicorn is released under the MIT License. See the [LICENSE](https://github.com/benoitc/gunicorn/blob/master/LICENSE) file for details.