Best Free CS: Theory Courses & MOOCs

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

Number Theory and Cryptography (Coursera)

CS: Software Engineering CS: Theory

Explore the intriguing realm of number theory, from its historical roots to contemporary applications in cryptography. This course will guide you through fundamental concepts, revealing how numbers have shaped mathematics and secured our digital communications.

Oct 26th 2026

4 Weeks

Cryptography Algorithms Arithmetic

Coursera

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

Delivery Problem (Coursera)

CS: Software Engineering CS: Theory

Dive into the world of computational problem-solving and learn how to optimize delivery routes like never before with 'Delivery Problem: Solving the Travelling Salesman Problem'. This course, available on Coursera, equips you with Python programming skills to tackle one of the most challenging problems in logistics – visiting all locations as efficiently as possible. Whether you're a student or a professional in logistics, this course will help you understand and implement efficient algorithms for solving the Travelling Salesman Problem (TSP), a crucial aspect of delivery optimization.

Oct 26th 2026

3 Weeks

Probability Combinatorics Algorithms

EdX

University of California, San Diego,UC San DiegoX

Algorithmic Design and Techniques (edX)

CS: Theory Sci: Mathematics

Discover the art of designing algorithms and mastering computational problem-solving with our Algorithmic Design and Techniques course on edX. Whether you're a beginner or looking to enhance your expertise, this course will equip you with the essential tools and techniques needed to tackle intricate problems efficiently.

Self Paced

Self-Paced

Algorithms Algorithm Design Dynamic Programming

Algorithms and Data Structures Capstone (edX)

EdX

University of California, San Diego,UC San DiegoX

Algorithms and Data Structures Capstone (edX)

Sci: Biology & Life Sciences CS: Theory

Synthesize your knowledge of algorithms and biology to tackle the intricate task of assembling genomes from DNA fragments. This capstone project will challenge you to design, develop, and optimize your own software program for genome sequencing, applying all that you've learned about data structures and algorithms in a practical, industry-relevant context.

Self Paced

Self-Paced

Biology Algorithms Data Structures

Coursera

Stanford University

Introduction to Logic (Coursera)

CS: Theory Sci: Mathematics

Embark on an enlightening journey into the world of logic with this introductory course designed for beginners. Gain a solid understanding of logical encoding, reasoning techniques, and the practical applications of logic in diverse areas such as mathematics, science, engineering, business, law, and more.

Oct 22nd 2026

5-12 Weeks

Math Calculus Analysis

Coursera

Nanjing University

计算机系统基础（一）：程序的表示、转换与链接 (Coursera)

Security & Networking

本课程将带你探索程序从高级语言到机器指令的转变过程。从基本的数据类型和操作符到复杂的语句和过程调用，学习如何在不同层次上表示和转换程序。同时，我们还会深入了解链接过程，以优化性能并确保程序正确运行。

Jun 29th 2026

5-12 Weeks

Computer Science C Language

Coursera

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

What is a Proof? (Coursera)

CS: Software Engineering CS: Theory

Dive into the core concepts of mathematical thinking and unlock the secrets behind solving complex problems in computer science. This course, 'What is a Proof?', will equip you with crucial skills in areas such as algorithms, bioinformatics, data science, and machine learning through an exploration of induction, recursion, logic, and other vital discrete mathematics tools.

Jun 29th 2026

5-12 Weeks

Math Programming Algorithms

Coursera

Peking University

人群与网络 (Coursera)

CS: Theory Social Sciences

在北京大学开设的 '人群与网络' 在线课程中，你将学习如何使用计算思维方法来分析和解决社会学和经济学中的经典问题。这门跨学科选修课程旨在帮助学生深入理解生活现象，并体会到计算与社会科学之间的互动。适合信息技术、社会学和经济学等领域的本科生。

Jun 15th 2026

5-12 Weeks

Network Computing Social Sciences