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.

University of California San Diego
Skills you'll gain: Debugging, Computational Thinking, Event-Driven Programming, Computer Programming Tools, Algorithms, Programming Principles, Diversity Awareness, Digital pedagogy, Program Development, Education Software and Technology, Technical Communication, Computer Programming, Diversity Equity and Inclusion Initiatives, Code Review, Brainstorming, Software Documentation, Computer Science, Data Structures, Game Design, Student Engagement
Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Data Ethics, Medical Privacy, Healthcare Ethics, Responsible AI, Computer Security Awareness Training, Ethical Standards And Conduct, Health Information Management, Generative AI, Automation, Diversity Awareness, Medical Records, Artificial Intelligence, Information Systems Security Assessment Framework (ISSAF), Cybersecurity, Cultural Diversity, Information Privacy, Workplace inclusivity, Diversity Equity and Inclusion Initiatives, General Data Protection Regulation (GDPR), Personally Identifiable Information
Build toward a degree
Beginner · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Cryptography, Cybersecurity, Encryption, Public Key Cryptography Standards (PKCS), Brute-force attacks, Data Integrity
Beginner · Course · 1 - 4 Weeks

Princeton University
Skills you'll gain: Graph Theory, Data Structures, Algorithms, Theoretical Computer Science, Operations Research, Computational Thinking, Computer Programming, Network Routing, Java Programming, Linear Algebra
Intermediate · Course · 3 - 6 Months
University of Glasgow
Skills you'll gain: Computational Thinking, JSON, Application Deployment, Data Structures, Javascript, Application Development, Analytics, HTML and CSS, Data Analysis, Code Review, Software Development, Data Visualization Software, Web Development, Web Applications, Scripting, Prototyping, Data Processing, Programming Principles, Unsupervised Learning, Computer Programming
Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Penetration Testing, AI Security, Exploit development, Network Security, Cyber Security Assessment, Exploitation techniques, Open Web Application Security Project (OWASP), Application Security, Computer Security, Unix, Cybersecurity, Artificial Intelligence and Machine Learning (AI/ML), Cryptographic Protocols, Network Protocols, Cryptography, Security Awareness, Generative AI Agents, Web Applications, Server Side, Machine Learning Algorithms
Intermediate · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Digital Communications, OSI Models, Network Protocols, TCP/IP, Network Routing, Network Architecture, Network Planning And Design, Computer Networking, System Programming, Data Integrity
Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Graph Theory, Combinatorics, Network Analysis, Applied Mathematics, Data Structures, Algorithms, Network Routing, Network Model, Theoretical Computer Science, Program Development
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Cryptography, Public Key Infrastructure, Cybersecurity, Network Security, Firewall, Cyber Attacks, Data Security, Data Encryption Standard, Penetration Testing, Encryption, Information Assurance, Risk Management Framework, Advanced Encryption Standard (AES), Intrusion Detection and Prevention, Application Security, Information Systems Security, Secure Coding, Security Controls, Exploitation techniques, Software Design Patterns
Intermediate · Specialization · 3 - 6 Months

University of California, Davis
Skills you'll gain: Social Network Analysis, Network Analysis, Data Wrangling, Natural Language Processing, Web Scraping, Data Ethics, Artificial Intelligence, Social Sciences, Research, Big Data, Databases, Simulations, Data Processing, Artificial Intelligence and Machine Learning (AI/ML), Systems Thinking, Social Studies, Trend Analysis, Data Science, Machine Learning, Agentic systems
Beginner · Specialization · 3 - 6 Months

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

University of Pennsylvania
Skills you'll gain: Computational Thinking, Algorithms, Program Development, Pseudocode, Problem Solving, Python Programming, Data Structures, Computer Hardware, Computer Programming, Object Oriented Programming (OOP), Analysis, Debugging
Beginner · Course · 1 - 4 Weeks