Course catalog

CS50x: Introduction to Computer Science

Harvard's legendary intro: C, algorithms, memory, Python, SQL and the web.

CS50P: Programming with Python

Learn Python from functions to OOP with problem sets.

CS50W: Web Programming with Python & JS

Django, JavaScript, SQL, testing and scalability.

Needs: CS50x: Introduction to Computer Science

CS50 SQL: Databases with SQL

Design, query and optimize relational databases.

Responsive Web Design

HTML, CSS, flexbox, grid and accessibility through projects.

JavaScript Algorithms & Data Structures

Core JavaScript, algorithmic thinking and OOP.

Needs: Responsive Web Design

Front End Development Libraries

Bootstrap, jQuery, Sass, React and Redux.

Needs: JavaScript Algorithms & Data Structures

Back End Development and APIs

Node.js, npm, Express and MongoDB.

Needs: JavaScript Algorithms & Data Structures

Relational Database

Bash, Git, PostgreSQL and nano in a real VM.

Python

Python fundamentals, data structures, OOP and algorithms through hands-on projects.

Foundations

Set up your environment, Git, HTML, CSS and JS basics.

JavaScript Path

OOP, modules, async JS, testing and project builds.

Needs: Foundations

React

Components, state, effects, routing and testing.

Needs: JavaScript Path

NodeJS

Express, PostgreSQL, auth, APIs and Prisma.

Needs: JavaScript Path

Learn to Code in Python

Gamified Python from variables to errors.

Learn Linux

Terminals, filesystems, permissions and programs.

Learn Git

Repos, branches, merge, rebase and remotes.

Needs: Learn Linux

Learn Object Oriented Programming

Classes, encapsulation, inheritance and polymorphism.

Needs: Learn to Code in Python

Learn Data Structures & Algorithms

Big-O, sorting, trees, graphs and P vs NP.

Needs: Learn Object Oriented Programming

Learn Go

Types, structs, interfaces, generics and concurrency.

Needs: Learn to Code in Python

Learn SQL

Tables, constraints, CRUD, joins and performance.

Learn HTTP Servers in Go

Build a production-style web server with auth and webhooks.

Needs: Learn Go, Learn SQL

Learn Docker

Containers, networks, Dockerfiles and publishing.

Needs: Learn Linux

JavaScript Track

Practice exercises with free human mentoring.

TypeScript Track

Type-safe JavaScript practice with mentoring.

Needs: JavaScript Track

Python Track

Concept exercises and 140+ practice problems.

Rust Track

Ownership, borrowing, traits and enums in practice.

Needs: Learn Go

Frontend Developer Roadmap

A community map of every frontend skill.

Needs: Foundations

Backend Developer Roadmap

APIs, caching, auth, scaling and architecture.

Needs: Learn SQL

PostgreSQL DBA Roadmap

Indexes, query plans, replication and backups.

Needs: Learn SQL

DevOps Roadmap

CI/CD, cloud, IaC, monitoring and more.

Needs: Learn Docker

Computer Science Roadmap

Systems, networking, compilers and theory.

Needs: Learn Data Structures & Algorithms