Best Free Computer Science Courses & MOOCs

Coursera

Fred Hutchinson Cancer Center

AI for Efficient Programming: Harnessing the Power of LLMs (Coursera)

Robotics & Computer Vision

Discover the transformative power of AI in your coding workflow with 'AI for Efficient Programming: Harnessing the Power of LLMs'. This course is designed for developers looking to integrate Large Language Models into their processes. By mastering these advanced tools, you'll streamline tasks, accelerate project timelines, and focus on innovation.

Oct 5th 2026

4 Weeks

Artificial Intelligence Coding Data Science

Coursera

Illinois Tech

Fundamentals of Web Development (Coursera)

Computer Science

Discover the essential skills needed for web development in this beginner-friendly course. From HTML and CSS basics to advanced JavaScript and jQuery techniques, you'll learn how to create dynamic, engaging websites. Perfect for those new to coding or looking to refresh their knowledge.

Oct 5th 2026

5-12 Weeks

HTML Javascript CSS

Coursera

DeepLearning.AI

Build LLM Apps with LangChain.js (Coursera)

Computer Science

Dive into 'Build LLM Apps with LangChain.js' and learn how to leverage JavaScript to build powerful applications using LangChain.js, a leading framework for integrating Large Language Models. This course is designed for web developers looking to expand their toolkit and create context-aware applications that can understand and generate human-like text.

Oct 5th 2026

1 Week

Python Javascript Python Programming

Coursera

Scrimba

Learn Accessible Web Design (Coursera)

Computer Science

Embark on a journey towards more inclusive web design with the 'Learn Accessible Web Design' course from Coursera. This course will equip you with essential skills in creating websites that are accessible to everyone, regardless of their abilities. You'll explore key concepts such as understanding contrast ratios and navigating the accessibility tree, all while adhering to WCAG standards.

Oct 5th 2026

1 Week

HTML Web Design WCAG

Coursera

EIT Digital

Geometric Algorithms (Coursera)

CS: Theory Computer Science

Discover the fundamentals of geometric algorithms in this comprehensive online course. Gain expertise in designing and analyzing geometric algorithms and data structures crucial for handling spatial data in various application areas such as robotics, computer graphics, and more. Enhance your skills with practical examples and real-world problem-solving techniques.

Oct 2nd 2026

3 Weeks

Algorithms Data Structures Geometric Algorithms

Coursera

University of California, San Diego

Finding Hidden Messages in DNA (Bioinformatics I) (Coursera)

Sci: Biology & Life Sciences Health & Society

Embark on a fascinating journey into the world of bioinformatics with 'Finding Hidden Messages in DNA (Bioinformatics I)', an online course offered by Coursera. This course introduces you to the intersection of biology and computer science, where we explore how computational techniques can be used to decipher genetic information without stepping foot in a lab. Dive deep into understanding DNA replication and discover the algorithms that help us identify key starting points within bacterial genomes.

Sep 28th 2026

5-12 Weeks

Biology Algorithms DNA

Coursera

Vanderbilt University

Engineering Maintainable Android Apps (Coursera)

CS: Software Engineering Computer Science

Dive into the world of maintainable Android app engineering with our 4-week MOOC. Explore test-driven development methods, unit testing techniques using JUnit and Robotium, and apply essential Java/Android software patterns to create robust, scalable apps that are easy to maintain and extend over time.

Sep 28th 2026

4 Weeks

Security Android Software Engineering

Coursera

University of Colorado System

Cryptography and Information Theory (Coursera)

Security & Networking

Dive into the intriguing world where cryptography meets information theory in this enlightening online course. Uncover the secrets behind secure communication, understand the science of data encryption, and explore how information is coded and transferred. This course offers a unique perspective on protecting information from unauthorized access and provides insights into entropy, attacker capabilities, and more.

Sep 28th 2026

4 Weeks

Cryptography Networks Information Theory

Coursera

New York University

Enterprise and Infrastructure Security (Coursera)

Security & Networking

Dive into the world of enterprise and infrastructure security with this comprehensive online course. Gain insights into modern cybersecurity practices, understand compliance frameworks like NIST and PCI, and explore how hybrid cloud architectures can enhance your network's security. Perfect for professionals looking to fortify their organization's digital defenses.

Sep 28th 2026

4 Weeks

Security Enterprise Cybersecurity