Theoretical computer science courses can help you learn algorithms, computational complexity, automata theory, and formal languages. You can build skills in problem-solving, mathematical reasoning, and algorithm analysis, that support tackling complex computational tasks. Many courses introduce tools like Python for algorithm implementation, LaTeX for typesetting mathematical documents, and software for simulating automata, allowing you to apply these concepts in practical scenarios.

Stanford University
Skills you'll gain: Algorithms, Graph Theory, Data Structures, Theoretical Computer Science, Computational Thinking, Mathematical Theory & Analysis, Analysis, Probability & Statistics, Probability, Design Strategies, Logical Reasoning
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Quantum computing, Public Key Cryptography Standards (PKCS), Cryptography, Data Structures, Cryptographic Protocols, Algorithms, Encryption, Theoretical Computer Science, Computer Science, Programming Principles, Mathematical Software, Advanced Mathematics
Build toward a degree
Advanced · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Arithmetic, Theoretical Computer Science, Computational Logic, Programming Principles, Computer Science, Algorithms, Computational Thinking, Database Theory, Mathematical Modeling, Data Structures, General Mathematics, Applied Mathematics, Business Mathematics, Advanced Mathematics, Logical Reasoning, Problem Solving
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Cryptography, Public Key Infrastructure, Cybersecurity, Information Systems Security, Data Security, Firewall, Cyber Attacks, Data Encryption Standard, Penetration Testing, Network Security, Information Assurance, Encryption, Exploit development, Advanced Encryption Standard (AES), Cryptographic Protocols, Intrusion Detection and Prevention, Metasploit, Application Security, Security Testing, Cyber Security Policies
Intermediate · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Network Analysis, R Programming, Statistical Analysis, Regression Analysis, Statistical Modeling, Statistical Methods, Combinatorics, Bayesian Network, Applied Machine Learning, Statistical Hypothesis Testing, Statistical Programming, Data Analysis, R (Software), Probability, Statistics, Probability Distribution, Probability & Statistics, Bayesian Statistics, Social Network Analysis, Simulations
Intermediate · Specialization · 3 - 6 Months

University of Michigan
Skills you'll gain: Computational Thinking, Programming Principles, Problem Solving, Disaster Recovery, Algorithms, Computer Programming, Epidemiology
Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Cryptographic Protocols, Cryptography, Key Management, Encryption, Cybersecurity, Arithmetic, Algorithms, Python Programming
Beginner · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Algorithms, Computational Thinking, Theoretical Computer Science, Computational Logic, Critical Thinking and Problem Solving, Computer Science, Data Structures, Critical Thinking, Classification Algorithms, Logical Reasoning, Graph Theory, Mathematical Theory & Analysis, Complex Problem Solving, Analysis, Game Theory
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Cryptography, Arithmetic, Algorithms, Applied Mathematics, Probability, Computer Science
Beginner · Course · 1 - 4 Weeks

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Computer Architecture, Hardware Architecture, Microarchitecture, Computer Systems, Computational Logic, Hardware Design, Computer Hardware, Programming Principles, System Programming, Systems Architecture, Program Development, Data Storage, Memory Management
Build toward a degree
Beginner · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Distributed Computing, Data Store, NoSQL, Apache Cassandra, Cloud Computing, Cloud Computing Architecture, Systems Design, Database Theory, Algorithms, Scalability, C++ (Programming Language)
Beginner · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Computational Logic, Logical Reasoning, Theoretical Computer Science, Deductive Reasoning, Mathematics and Mathematical Modeling, Computer Science, Algorithms
Beginner · Course · 1 - 3 Months