Flask vs Django

Flask Django
What is Flask ?

It is a web framework. It provides flexibility, simplicity,
and fine-grained control.
What is Django ?

It is a web development framework that assists in building and maintaining quality web applications.
Companies that use Flask

Companies that use Django


Flask is a ligtweight, simple, and easy to use a framework.

Django is a full-stack Python web framework that follows a batteries-included approach.

Flask doesn't have a database layer, supports NoSQL,
no ORM, perform database operations through SQLAlchemy.

Django provides an ORM system to perform standard database operations without writing lengthy SQL queries.

Flask has built-in security

Django is more secure in comparison with other web frameworks.

Flask is a micro and extensible web framework.

Django follows the batteries included approach, which helps developers to build a variety of web applications without using third-party tools and libraries.
Built-in Bootstrapping Tool

Flask doesn't consist built-in bootstrap tool.

Django comes with the built-in Bootstrapping tool named –django-admin.
Features of Flask

  • It provides a non-relational database.
  • It is a lightweight and extensible WSGI web framework.
  • It has a lightweight codebase.
Features of Django

  • It consists of a built-in admin.
  • Asynchronous capabilities.
  • It has robust documentation.
  • Wide Community across the world.

Hello World Program Comparison


Let's display the Hello World on the webpage using both frameworks.

  • To create a newfile hello_flask.py. The program is given below:
from flask import Flask, escape, request
                                        app = Flask(__name__)  
def hello():  
    name = request.args.get("name", "World")  
    return f'Hello, {escape(name)}!'  

Then start the Flask server from the command line:

$ env FLASK_APP=hello_flask.py flask run  
* Serving Flask app "hello_flask.py"  
* Environment: production  
WARNING: This is a development server. Do not use it in a production deployment.  
Use a production WSGI server instead.  
* Debug mode: off  
* Running on http://127.0.0. 1:5000/ (Press CTRL+C to quit)  


To install the django by using pip install django command; create a hello_django.py with the following code:

from django.conf import settings  
from django.core.handlers.wsgi import WSGIHandler  
from django.core.management import execute_from_command_line  
from django.http import HttpResponse  
from django.urls import path  
def hello_world(request):  
    return HttpResponse("Hello, Django!")  
urlpatterns = [  
    path('', hello_world)  
application = WSGIHandler()  
if __name__ == "__main__":  

Type following command in your terminal:

python hello_django.py runserver  
Watching for file changes with StatReloader  
Performing system checks...  
System check identified no issues (0 silenced).  
December 17, 2019 - 13:48:54  
Django version 3.0, using settings None  
Starting development server at  
Quit the server with CONTROL-C.  

When you click on the above link, it will display the Hello World on a webpage.

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