Best Free Computer Science Courses & MOOCs

Data Structures & Algorithms I: ArrayLists, LinkedLists, Stacks and Queues (edX)

EdX

Georgia Institute of Technology,GTx

Data Structures & Algorithms I: ArrayLists, LinkedLists, Stacks and Queues (edX)

CS: Programming Computer Science

Dive into the core concepts of data storage and manipulation with our Data Structures & Algorithms I course. This edX offering provides a hands-on approach to learning about Arrays, ArrayLists, LinkedLists, Stacks, and Queues. Through engaging visualizations and practical exercises, you'll gain a deep understanding of how these structures work, their performance characteristics, and how to implement them effectively.

Self Paced

Self-Paced

Algorithms Data Structures Java Programming

EdX

HarvardX,Harvard University

Deploying TinyML (edX)

Statistics & Data Analysis Computer Science

Embark on the journey of building your own Tiny Machine Learning (TinyML) device. This course will guide you through programming in TensorFlow Lite for microcontrollers, enabling you to write code, deploy models, and ultimately create an entire TinyML application from scratch.

Self Paced

Self-Paced

Programming Microcontrollers TensorFlow Lite

EdX

AWS

AWS Cloud Practitioner Essentials (edX)

Business Computer Science

Embark on a transformative learning journey with 'AWS Cloud Practitioner Essentials' – an introductory course designed for both newcomers and experienced professionals alike. Dive into the fundamentals of cloud computing and explore Amazon Web Services (AWS) core services, security best practices, and architectural principles to build a robust foundation in cloud solutions. This course is your gateway to leveraging AWS capabilities to solve real-world business problems.

Self Paced

Self-Paced

Cloud Security Architecture

Coursera

LearnQuest

A Practical Introduction to Test-Driven Development (Coursera)

Computer Science

Discover the fundamentals of Test-Driven Development in this practical Coursera course. From writing initial unit tests to mastering advanced TDD techniques like mocking with Python's unittest.mock, you'll learn how to build robust applications through a test-first approach. This course is ideal for developers aiming to elevate their testing practices and produce higher quality code.

Jul 13th 2026

3 Weeks

Python Programming TDD Unit Testing

Coursera

LearnQuest

Integrating Test-Driven Development into Your Workflow (Coursera)

Computer Science

Discover how to seamlessly incorporate Test-Driven Development (TDD) techniques into your coding routine with this comprehensive online course. From understanding the principles of TDD to mastering the art of writing effective tests, you'll gain valuable skills that enhance code quality and maintainability. This course is ideal for programmers looking to refine their workflow and produce more reliable software.

Jul 13th 2026

4 Weeks

Computer Science Methodologies Agile Methodologies

Coursera

LearnQuest

Test-Driven Development Project: Random Person Generator (Coursera)

Computer Science

Embark on an engaging journey into the world of Test-Driven Development (TDD) with our capstone project-based course. Dive deep into crafting a Random Person Generator while mastering essential TDD skills such as exception handling, mock objects, and unit testing. This hands-on course will equip you with practical knowledge and a portfolio piece that showcases your proficiency in TDD.

Jul 13th 2026

1 Week

TDD Unit Testing Test Driven Development

Coursera

AWS

AWS Cloud Practitioner Essentials (Coursera)

Computer Science

Embark on an essential journey into the world of cloud computing with our AWS Cloud Practitioner Essentials course. Designed for individuals new to the cloud, this course offers a foundational understanding of Amazon Web Services (AWS) that is crucial for anyone looking to leverage the power of cloud technology in their professional roles. Whether you're in IT or non-IT fields such as finance, legal, sales, and marketing, this course equips you with the knowledge needed to contribute meaningfully to your organization's cloud strategy.

Jul 13th 2026

5-12 Weeks

Security Databases Cloud Computing

Coursera

University of Colorado Boulder

Everyday Excel, Part 3 (Projects) (Coursera)

Computer Science

Take your Excel proficiency to the next level with Everyday Excel, Part 3 (Projects). In this advanced course, you'll dive into practical applications of Excel by tackling a variety of challenging projects. Building on the basics covered in Parts 1 and 2, this capstone experience will test your skills and creativity as you solve complex problems using Excel.

Jul 13th 2026

5-12 Weeks

Computing Algorithms Spreadsheets

Data Structures & Algorithms II: Binary Trees, Heaps, SkipLists and HashMaps (edX)

EdX

Georgia Institute of Technology,GTx

Data Structures & Algorithms II: Binary Trees, Heaps, SkipLists and HashMaps (edX)

Computer Science

Dive deep into the world of complex data structures with our Data Structures & Algorithms II course. Learn about Binary Trees, Heaps, SkipLists, and HashMaps to enhance your programming skills and understand how to efficiently manage large datasets. This course is designed for those who want to take their knowledge beyond basic algorithms.

Self Paced

Self-Paced

Algorithms Data Structures BST