What’s the Difference Between Django and Flask

Sasha Andrieiev
2 min readAug 25, 2021


Django and Flask are the most well-known frameworks among developers. They are both free, open-source, Python-based web frameworks designed for building web applications. You can hardly go wrong with choosing one of these frameworks to work with a new web app. While picking which one will work best for you and your goals, there are several clear differences to keep in mind.

Flask is a lightweight framework developed in Python that offers useful tools and features to facilitate building web applications. It has some standard functionalities and allows developers to add libraries or plugins for an extension. Flask is known as a micro-framework because it is lightweight and only provides essential components. It uses the Jinja2 templating language by default but can be configured to use another language. In Flask, Jinja2 is configured to auto escape any data that is rendered in HTML templates.

Advantages of Flask

1. Easy to understand;

2. Flexible;

3. Good testing tools.

Disadvantages of Flask

1. It doesn’t support asynchrony;

2. Lack of opportunities.

Django is a highly demanded framework for fast-moving application building. Its first release was introduced in 2005. Django has a huge community around the world. It has gathered numerous extensions, plugins, and third-party apps covering a wide range of needs during its existence. Django adopts a comprehensive approach, providing an admin panel, ORM (Object Relational Mapping), database interfaces, and directory structure straight out of the box. Such apps like Facebook and Pinterest use it successfully.

Advantages of Django

1. Django can save time at every stage, from the formation of the idea itself to the release;

2. Django offers many advanced features, including RSS, content administration, sitemaps, and more. In addition, it protects against errors and increases the security of your application;

3. With Django, you can efficiently handle a large amount of traffic, so large resources prefer it.

Django Disadvantages

1. Django uses a URL Routing Pattern;

2. It is too monolithic;

3. It is totally based on ORM Django;

4. Django has all components deployed together;

5. It can own the entire system to work.

Both frameworks are suitable for the rapid development of web apps, but Django is more complicated and vast and needs a deep learning curve. With Flask, you can start with some necessary programming skills because it provides the most flexibility in terms of customization. If you need to choose between Flask and Django, the main thing to remember is that they are not a one-size-fits-all solution.

Find out more in our full comparison here: https://jelvix.com/blog/django-vs-flask



Sasha Andrieiev

CEO & Co-founder at Jelvix | Digital Leader| Innovation Expert | www.jelvix.com