Best Free Computer Science Courses & MOOCs

Coursera

University of Illinois at Urbana-Champaign

IoT Communications (Coursera)

Computer Science

Dive deeper into the world of Internet of Things (IoT) with 'IoT Communications'. This course builds on foundational knowledge to enhance the connectivity of IoT devices like a self-driving vehicle. Explore RF communication, MAC layer intricacies, Mesh Networking, and distributed algorithms for precise geographic location applications. Get hands-on experience through lab exercises over four weeks.

Jun 29th 2026

4 Weeks

Internet Networking Wireless

Coursera

University of Illinois at Urbana-Champaign

IoT Devices (Coursera)

Computer Science

Dive into the world of the Internet of Things (IoT) with our foundational course designed to equip you with a deep understanding of this transformative technology. From programming Arduino and Raspberry Pi devices to exploring sensing and actuating technologies, protocol stacks such as Zigbee and 5G, and securing your IoT networks, this course covers it all. Master data science applications for IoT and leverage cloud-based platforms like AWS IoT to bring your projects to life.

Jun 29th 2026

4 Weeks

Internet Cloud Computing Arduino

Coursera

Codio

C++ Object Basics: Functions, Recursion, and Objects (Coursera)

Computer Science

Embark on your journey into the world of C++ with this introductory course designed for beginners. Gain hands-on experience by coding and running your first C++ program instantly online, no installations necessary. Dive deep into essential topics like functions, recursion, objects, and mutability to build a robust understanding of core computer science principles that can be applied across various programming languages.

Jun 29th 2026

4 Weeks

Programming C++ Computer Science

Coursera

Codio

Java Basic Structures: Arrays, Strings, and Files (Coursera)

Computer Science

Start your journey into Java programming without any installations required! This beginner-friendly course offers a strong foundation in essential Java topics such as arrays, strings, and files. Perfect for those new to coding, this course will equip you with the basic structures of Java while reinforcing key Computer Science principles that are transferable across different languages.

Jun 29th 2026

3 Weeks

Programming Java Computer Science

Coursera

Codio

Java Object Basics: Functions, Recursion, and Objects (Coursera)

Computer Science

Discover the basics of Java programming with our beginner-friendly course, Java Object Basics: Functions, Recursion, and Objects. This comprehensive online program is designed to equip you with essential skills in Java and core computer science principles that can be applied across various coding languages. Start your journey into programming by diving into functions, recursion, objects, and mutability—all from the comfort of your browser.

Jun 29th 2026

4 Weeks

Programming Java Computer Science

Coursera

University of Michigan

Database Architecture, Scale, and NoSQL with Elasticsearch (Coursera)

Computer Science

Explore the world of databases with our final course on Database Architecture, Scale, and NoSQL with Elasticsearch. Gain a deep understanding of database architecture, learn how to scale deployments effectively, and delve into the realm of NoSQL databases with Elasticsearch. This course covers PostgreSQL, transaction management, ACID requirements, and various scalable deployment configurations.

Jun 29th 2026

4 Weeks

Databases NoSQL CRUD

Coursera

National Taiwan University

Operations Research (3): Theory (Coursera)

Computer Science

Dive into the world of deterministic optimization techniques with 'Operations Research (3): Theory'. This advanced course is part of a three-part series designed for those looking to deepen their understanding of Operations Research. You'll explore linear programs, integer programs, and nonlinear programs, gaining valuable skills applicable in various fields such as business management, economics, computer science, civil engineering, and electrical engineering.

Jun 29th 2026

5-12 Weeks

Linear Programming Business Analytics Network Flow

Coursera

AWS

Getting Started with Data Analytics on AWS (Coursera)

Computer Science

Dive into the world of data analytics with this beginner-friendly course on Amazon Web Services (AWS). Discover how to leverage AWS Cloud for effective data analysis, covering various types from descriptive to prescriptive analytics. Gain hands-on experience with real-world datasets and learn essential skills in data interpretation and visualization using AWS tools.

Jun 29th 2026

1 Week

Amazon Data Analytics AWS

Coursera

University of Colorado Boulder

Trees and Graphs: Basics (Coursera)

Computer Science

Dive into the core concepts of Trees and Graphs: Basics with this engaging online course. Explore essential algorithms for tree data structures like binary search trees and self-balancing trees, as well as fundamental graph algorithms. This course also delves into advanced topics such as kd-trees for spatial data analysis. Perfect for those looking to build a strong foundation in data structures and algorithms.

Jun 29th 2026

4 Weeks

Data Structures Graphs Graph Algorithms