The 2018 Python Developers Survey found that Flask and Django are, the most common web frameworks for Pythonistas.

If you want to decide which one to use for a new web app, you must figure out which one works best for what you are trying to achieve and you should be aware of some major differences.

Lets look what each framework does and underline some of the distinctions and similarities.

Related course: Python Flask: Create Web Apps with Flask

Flask vs Django

Flask and Django are fully developed, extensible web frameworks which, at their base, offer basic functionality in handling requests and serving up files, but vary in their scope of responsibility.

Many of the variations between the 2 systems derive from several common key design decisions. A brief list of significant variations that may influence your decision is provided below:

  • Forms: The Django Framework has been integrated with an ORM and an admin site. Flask doesn’t have form integration, however WTForms can be used to add form support

flask forms

  • Database: Django Framework is equipped with Django ORM and a migration system to handle your database. Flask does not assume things about a database, but tools such as SQLAlchemy have similar functionality

  • Authentication & Permissions: Django Framework includes user management and permissions for authentication. Flask has cookies and sessions for your own implementation.

  • Admin site: There is nothing like Flask, but Flask-Admin is a common extension for the creation of a similar administration application.

flask admin

  • Flexibility: You have amazing flexibility with Flask. Total control how the structure for your app is to be built. Django doesn’t give you this flexibility.

Similarities

In short Flask is more minimalist than Django and Django forces their design decisions on your app.

  • Both Python web frameworks (Flask and Django). You may use Python as a backend logic to build web apps, html and css as a front-end.

  • Supports ORM or related object-mapping: You could use SQLITE, MYSQL, PostgreSQL as well as other ORM databases. Django uses ORM as standard, Flask doesn’t include by default ORM functionality, but you can add it manually.

  • Template engine: Both support a template engine. Flask uses the Jinja template system and Django uses something similar

Conclusion

The advantages and disadvantages of Flask and Django both exist. If you’re making a simple app that’s not too complicated, then the way forward is Flask.

I would recommend that you start with Flask, if you are a novice and want to develop the web with python. Django can be used for the things you learn in Flask and Flask is just simpler.

Related course: Python Flask: Create Web Apps with Flask