13 best Python Web Application libraries in 2025
by marketing.admin@openweaver.com 
Updated: Feb 7, 2023
Guide Kit
Python is an interpreted, interactive, object-oriented programming language. Its high-level built in data structures, combined with dynamic typing and dynamic binding, make it very attractive for Rapid Application Development, as well as for use as a scripting or glue language to connect existing components together. Python is a flexible and powerful programming language that started in 1991, and has become one of the most popular programming languages in the world. It is used for many different types of applications, from web applications to desktop software. Python is a general-purpose programming language that works well for both small one-off projects and large applications, as it's easy to read and write. Popular open source libraries for Python Web Application include: flask - The Python micro framework for building web applications; PayloadsAllTheThings - useful payloads and bypass for Web Application Security; bottle - simple microframework for python webapplications.
flaskby pallets
63300 Version:2.2.5The Python micro framework for building web applications.
flaskby pallets
Python 63300 Version:2.2.5 License: Permissive (BSD-3-Clause)
PayloadsAllTheThingsby swisskyrepo
48439 Version:3.0A list of useful payloads and bypass for Web Application Security and Pentest/CTF
PayloadsAllTheThingsby swisskyrepo
Python 48439 Version:3.0 License: Permissive (MIT)
bottleby bottlepy
8008 Version:Currentbottle.py is a fast and simple micro-framework for python web-applications.
bottleby bottlepy
Python 8008 Version:Current License: Permissive (MIT)
full-stack-fastapi-postgresqlby tiangolo
12171 Version:0.5.0Full stack, modern web application generator. Using FastAPI, PostgreSQL as database, Docker, automatic HTTPS and more.
full-stack-fastapi-postgresqlby tiangolo
Python 12171 Version:0.5.0 License: Permissive (MIT)
beeswithmachinegunsby newsapps
6305 Version:CurrentA utility for arming (creating) many bees (micro EC2 instances) to attack (load test) targets (web applications).
beeswithmachinegunsby newsapps
Python 6305 Version:Current License: Permissive (MIT)
werkzeugby pallets
6379 Version:2.3.4The comprehensive WSGI web application library.
werkzeugby pallets
Python 6379 Version:2.3.4 License: Permissive (BSD-3-Clause)
huxleyby facebookarchive
4099 Version:CurrentA testing system for catching visual regressions in Web applications.
huxleyby facebookarchive
Python 4099 Version:Current License: Permissive (Apache-2.0)
wafw00fby EnableSecurity
4233 Version:v2.2.0WAFW00F allows one to identify and fingerprint Web Application Firewall (WAF) products protecting a website.
wafw00fby EnableSecurity
Python 4233 Version:v2.2.0 License: Permissive (BSD-3-Clause)
joplin-webby foxmask
363 Version:Current:snake: :books: Web application companion for Joplin
joplin-webby foxmask
Python 363 Version:Current License: Permissive (BSD-3-Clause)
webapp-checklistby dhilipsiva
351 Version:CurrentTechnical details that a programmer of a web application should consider before making the site public.
webapp-checklistby dhilipsiva
Python 351 Version:Current License: Others (Non-SPDX)
231 Version:CurrentA series of python scripts for generating weird character combinations for bypassing web application firewalls (WAF) and XSS blockers
Bypassing-Web-Application-Firewallsby frizb
Python 231 Version:Current License: Permissive (BSD-3-Clause)
algorithm-trading-webappby softage0
152 Version:CurrentAlgorithm Trading web application with Python, Django, PyQt5 and Javascript
algorithm-trading-webappby softage0
Python 152 Version:Current License: Permissive (MIT)
auth0-python-web-appby auth0-samples
147 Version:CurrentAuth0 Integration Samples for Python and Flask Web Applications
auth0-python-web-appby auth0-samples
Python 147 Version:Current License: Permissive (MIT)