Best Free CS: Theory Courses & MOOCs

Coursera

University of California, San Diego,Higher School of Economics - HSE University

Algorithms on Strings (Coursera)

CS: Software Engineering CS: Theory

Explore the fascinating world of string algorithms in this online course. Delve into the techniques that drive search engine efficiency and revolutionize personalized medicine. From understanding text queries to identifying disease-causing mutations in human genomes, this course offers a deep dive into the computational methods that make sense of textual information.

Sep 7th 2026

4 Weeks

Algorithms Data Structures Strings

Coursera

University of California, San Diego,Higher School of Economics - HSE University

Advanced Algorithms and Complexity (Coursera)

CS: Software Engineering CS: Theory

Step up your algorithmic skills with our Advanced Algorithms and Complexity course. Dive into intricate problem-solving techniques, including network flows, optimal matchings, and disjoint paths. Perfect for those ready to advance beyond the basics and explore sophisticated applications in various fields like computer vision and scheduling.

Sep 7th 2026

5-12 Weeks

Algorithms Data Structures Machine Learning

Coursera

University of California, San Diego

Data Structures and Performance (Coursera)

CS: Theory Data Science

Unlock the secrets of efficient Java programming with our 'Data Structures and Performance' course. Designed for intermediate learners, this course will teach you advanced techniques to handle vast amounts of data effectively. Gain insights into optimizing algorithms and data structures for large-scale applications, ensuring your software performs at its best.

Sep 7th 2026

5-12 Weeks

Programming Java Algorithms

Coursera

Stanford University

Shortest Paths Revisited, NP-Complete Problems and What To Do About Them (Coursera)

CS: Software Engineering CS: Theory

Dive into advanced algorithmic concepts with 'Shortest Paths Revisited, NP-Complete Problems and What To Do About Them'. This course unravels the intricacies of shortest path algorithms, delves into the realm of NP-completeness, and equips you with strategies to tackle computationally hard problems effectively.

Sep 7th 2026

4 Weeks

Algorithms Data Structures Dynamic Programming

IT Fundamentals for Business Professionals: Hardware (edX)

EdX

Universitat Politècnica de València,UPValenciaX

IT Fundamentals for Business Professionals: Hardware (edX)

Security & Networking

Dive into the basics of Information Technology with our introductory course, 'IT Fundamentals for Business Professionals: Hardware'. This comprehensive program is part of an extensive series designed to equip you with the fundamental knowledge needed to navigate the world of IT. Whether you're new to IT or looking to refresh your understanding, this course will provide you with a solid foundation in computer hardware and its critical role within business information systems.

Self Paced

Self-Paced

Hardware Information Technology Information Systems

Data Structures and Algorithm Design Part II | 数据结构与算法设计(下) (edX)

EdX

Tsinghua University,TsinghuaX

Data Structures and Algorithm Design Part II | 数据结构与算法设计(下) (edX)

CS: Software Engineering CS: Theory

Dive into the world of complex data structures and sophisticated algorithm design with our advanced course. Whether you're a seasoned programmer or just starting out, this course will equip you with the skills needed to tackle intricate problems efficiently. From binary trees to hash tables, and from dynamic programming to graph algorithms, we'll explore various techniques to solve computational challenges effectively.

Self Paced

Self-Paced

Data Structures Algorithm Design

Coursera

University of California, San Diego,Higher School of Economics - HSE University

Introduction to Graph Theory (Coursera)

CS: Software Engineering CS: Theory

Embark on an enlightening journey into the world of Graph Theory with our introductory course. Delve into the basics of graph representation, uncover the beauty and logic behind key concepts, and discover real-world applications that range from GPS navigation to circuit design and beyond. Perfect for beginners and enthusiasts alike.

Sep 7th 2026

5-12 Weeks

Network Algorithms Genomes

Coursera

University of California, San Diego,Higher School of Economics - HSE University

Combinatorics and Probability (Coursera)

CS: Theory Sci: Mathematics

Discover the art and science of counting and probability with our Combinatorics and Probability course. Designed for beginners and advanced learners alike, this course explores essential mathematical concepts that are crucial in various fields such as computer science, data analysis, and everyday problem-solving. Learn to efficiently count possibilities, understand randomness, and make informed decisions.

Sep 7th 2026

5-12 Weeks

Probability Combinatorics Algorithms

Coursera

Duke University

Programming Fundamentals (Coursera)

CS: Theory CS: Programming

Discover the fundamentals of programming with our beginner-friendly course, ideal for those new to coding or looking to expand their skill set. This introductory course lays down the groundwork necessary for understanding algorithms and problem-solving techniques that are crucial across all programming languages. Whether you're aiming for a career in software development or simply wish to enhance your analytical thinking skills, this course is your starting point.

Sep 7th 2026

4 Weeks

Programming Algorithms C Language