Which Python framework is used in CS50 Web Programming to build dynamic web applications?

The course uses Django, a Python framework for building database-driven web applications.

What does Django migration do in a web application?

A Django migration applies changes to database schemas based on updates to application models.

Why is Git important in web development projects?

Git tracks code changes, supports collaboration, and makes it easier to restore earlier versions of a project.

Free online course Web Programming

Duration of the online course: 14 hours and 13 minutes

4.6

(7)

Build real web apps faster with a free course in HTML, CSS, Git, Python, Django, SQL and JavaScript—practice skills and earn a certificate-ready portfolio.

In this free course, learn about

CS50W overview and the web app development stack used in the course
Building dynamic web apps in Python with Django
HTML structure and CSS styling; CSS controls presentation and layout
Git fundamentals for version control, collaboration, and change tracking
Python basics and its dynamic typing/type system concepts
Django’s purpose: rapid development with routing, templates, and backend logic
SQL fundamentals plus Django models and migrations for database schema/data
JavaScript essentials and DOM manipulation for interactive pages
Using DOMContentLoaded to run code after the DOM is fully parsed
UI patterns and SPA advantages: smoother UX with fewer full page reloads
Testing, TDD basics, and CI/CD pipelines to catch issues before deployment
Scalability, security considerations, and cloud hosting benefits (elastic scaling)

About the free online course

Turn an idea into a working web application by learning the core tools and habits used in modern web development. This free online course guides you through the full stack: how pages are structured, styled, versioned, programmed, connected to a database, tested, and prepared for real-world deployment. Instead of treating web programming as isolated topics, you will see how each piece fits together to create dynamic, scalable applications.

You will start by strengthening fundamentals in HTML and CSS so you can build clean, accessible interfaces that look good across devices. From there, you will adopt Git as your daily safety net and collaboration tool, learning how to track changes confidently, experiment without fear, and keep a project organized as it grows. Next comes Python, where you will develop a solid understanding of how the language behaves and how to write clear, maintainable code.

With that base, you will move into server-side development with Django, a powerful framework for building data-driven web applications. You will learn to think in terms of reusable components, structured routing, and application architecture that makes sense for teams and long-term maintenance. You will also connect your application to a database using SQL and Django models, gaining practical insight into how data is stored, validated, and evolved over time through migrations.

On the front end, you will use JavaScript to add interactivity and improve user experience, including patterns that power smooth interfaces and single-page applications. Finally, you will explore professional practices that differentiate hobby projects from production software: testing strategies, continuous integration and delivery, and the essentials of scalability and security. By the end, you will be able to build, iterate, and ship web projects with a workflow that mirrors how modern developers work.

Course content

Video class: CS50W - Introduction 02m
Exercise: In the CS50 Web Programming with Python and JavaScript course, which framework is used to create dynamic web applications using Python?
Video class: CS50W - Lecture 0 - HTML and CSS 2h03m
Exercise: What is the primary role of CSS in web development?

Video class: CS50W - Lecture 1 - Git 53m
Exercise: What is one of the primary purposes of using Git in web development?
Video class: CS50W - Lecture 2 - Python 1h07m
Exercise: Which of the following is true about Python's type system?

Video class: CS50W - Lecture 3 - Django 1h39m
Exercise: What is the primary purpose of using Django as discussed in the lecture?
Video class: CS50W - Lecture 4 - SQL, Models and Migrations 1h54m
Exercise: What is the primary purpose of a Django 'model' in a web application?

Video class: CS50W - Lecture 5 - JavaScript 1h51m
Exercise: Which event in JavaScript is commonly used to run a function when the content of the Document Object Model (DOM) is fully loaded?
Video class: CS50W - Lecture 6 - User Interfaces 1h40m
Exercise: What is one advantage of using JavaScript for single-page applications (SPAs)?

Video class: CS50W - Lecture 7 - Testing and CI/CD 1h33m
Exercise: In the process of test-driven development in web programming, which practice is a key component for ensuring the reliability and correctness of the code before deployment?
Video class: CS50W - Lecture 8 - Scalability and Security 1h27m
Exercise: What is one benefit of using cloud computing for hosting web applications?

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