WSGI HTTP Server for UNIX
Project Links
Meta
Author: Benoit Chesneau
Requires Python: >=3.10
Classifiers
Development Status
- 5 - Production/Stable
Environment
- Other Environment
Intended Audience
- Developers
Operating System
- MacOS :: MacOS X
- POSIX
Programming Language
- Python
- Python :: 3
- Python :: 3.10
- Python :: 3.11
- Python :: 3.12
- Python :: 3.13
- Python :: 3 :: Only
- Python :: Implementation :: CPython
- Python :: Implementation :: PyPy
Topic
- Internet
- Utilities
- Software Development :: Libraries :: Python Modules
- Internet :: WWW/HTTP
- Internet :: WWW/HTTP :: WSGI
- Internet :: WWW/HTTP :: WSGI :: Server
- Internet :: WWW/HTTP :: Dynamic Content
Gunicorn
Gunicorn is maintained by volunteers. If it powers your production, please consider supporting us:
Gunicorn 'Green Unicorn' is a Python WSGI HTTP Server for UNIX. It's 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 resource usage, and fairly speedy.
New in v25: Per-app worker allocation for dirty arbiters, HTTP/2 support (beta)!
Quick Start
pip install gunicorn
gunicorn myapp:app --workers 4
For ASGI applications (FastAPI, Starlette):
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, eventlet, asgi
- Graceful worker process management
- Compatible with Python 3.9+
Documentation
Full documentation at https://gunicorn.org
Community
- Report bugs on GitHub Issues
- Chat in #gunicorn on Libera.chat
- See CONTRIBUTING.md for contribution guidelines
Support
Powering Python apps since 2010. Support continued development.
Sponsors
License
Gunicorn is released under the MIT License. See the LICENSE file for details.
25.3.0
Mar 27, 2026
25.2.0
Mar 24, 2026
25.1.0
Feb 13, 2026
25.0.3
Feb 07, 2026
25.0.2
Feb 06, 2026
25.0.1
Feb 02, 2026
25.0.0
Feb 01, 2026
24.1.1
Jan 24, 2026
24.1.0
Jan 23, 2026
24.0.0
Jan 23, 2026
23.0.0
Aug 10, 2024
22.0.0
Apr 16, 2024
21.2.0
Jul 19, 2023
21.1.0
Jul 18, 2023
21.0.1
Jul 17, 2023
21.0.0
Jul 17, 2023
20.1.0
Mar 27, 2021
20.0.4
Nov 26, 2019
20.0.3
Nov 25, 2019
20.0.2
Nov 23, 2019
20.0.0
Nov 09, 2019
19.10.0
Nov 23, 2019
19.9.0
Jul 03, 2018
19.8.1
Apr 30, 2018
19.8.0
Apr 28, 2018
19.7.1
Mar 21, 2017
19.7.0
Mar 04, 2017
19.6.0
May 23, 2016
19.5.0
May 11, 2016
19.4.5
Jan 05, 2016
19.4.4
Jan 04, 2016
19.4.3
Dec 29, 2015
19.4.2
Dec 29, 2015
19.4.1
Nov 25, 2015
19.4.0
Nov 25, 2015
19.3.0
Mar 06, 2015
19.2.1
Feb 04, 2015
19.2.0
Jan 30, 2015
19.1.1
Aug 16, 2014
19.1.0
Jul 26, 2014
19.0.0
Jun 12, 2014
18.0
Aug 27, 2013
17.5
Jul 03, 2013
0.17.4
Apr 24, 2013
0.17.3
Apr 24, 2013
0.17.2
Jan 07, 2013
0.17.1
Jan 05, 2013
0.17.0
Dec 25, 2012
0.16.1
Nov 19, 2012
0.16.0
Nov 19, 2012
0.15.0
Oct 18, 2012
0.14.6
Jul 26, 2012
0.14.5
Jun 24, 2012
0.14.4
Jun 24, 2012
0.14.3
May 15, 2012
0.14.2
Mar 16, 2012
0.14.1
Mar 04, 2012
0.14.0
Mar 04, 2012
0.13.4
Sep 23, 2011
0.13.3
Sep 19, 2011
0.13.2
Sep 17, 2011
0.13.1
Aug 22, 2011
0.13.0
Aug 22, 2011
0.12.2
May 18, 2011
0.12.1
Mar 23, 2011
0.12.0
Dec 22, 2010
0.11.2
Oct 30, 2010
0.11.1
Sep 02, 2010
0.11.0
Aug 13, 2010
0.10.1
Aug 06, 2010
0.10.0
Jul 09, 2010
0.9.1
May 26, 2010
0.9.0
May 25, 2010
0.8.1
Apr 29, 2010
0.8.0
Apr 22, 2010
0.7.2
Apr 15, 2010
0.7.1
Apr 02, 2010
0.7.0
Mar 26, 2010
0.6.6
Mar 13, 2010
0.6.5
Mar 11, 2010
0.6.4
Mar 08, 2010
0.6.3
Mar 07, 2010
0.6.2
Mar 01, 2010
0.6.1
Feb 24, 2010
0.6
Feb 22, 2010
0.5.1
Feb 22, 2010
0.5
Feb 20, 2010
0.4.2
Feb 09, 2010
0.4.1
Feb 03, 2010
0.4
Feb 03, 2010
0.3.2
Feb 03, 2010
0.3.1
Feb 02, 2010
0.3
Feb 01, 2010
0.2.1
Jan 26, 2010
0.2
Jan 22, 2010
0.1
Jan 03, 2010
