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.

EDUCBA
Skills you'll gain: Real-Time Operating Systems, Software Development, Software Design, Software Architecture, Embedded Systems, Configuration Management, Systems Architecture, Extensible Markup Language (XML), System Configuration, Application Frameworks, Application Programming Interface (API)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Pseudocode, Computational Thinking, Debugging, Algorithms, Front-End Web Development, Javascript, Computer Programming, Data Structures, JSON, Web Development, Object Oriented Programming (OOP)
Intermediate · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Criminal Investigation and Forensics, Investigation, File Systems, Mobile Security, Cybersecurity, Data Security, Threat Detection, Data Integrity, Graphical Tools, Digital Communications, Malware Protection, File Management, Computer Security Incident Management, Incident Response, Mobile Development Tools, Data Storage, Real Time Data, Disaster Recovery, Network Analysis, Regulation and Legal Compliance
Beginner · Course · 1 - 3 Months

Vanderbilt University
Skills you'll gain: Microservices, Application Deployment, Software Architecture, Scalability, Service Oriented Architecture, Java Programming, Distributed Computing, Load Balancing, Continuous Deployment, Program Development, Software Design, Maintainability, Dependency Analysis
Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: GitHub, C# (Programming Language), Secure Coding, HTML and CSS, User Interface and User Experience (UI/UX) Design, Figma (Design Software), Open Web Application Security Project (OWASP), Git (Version Control System), User Interface (UI), Object Oriented Programming (OOP), Web Development, Web Design, Debugging, Mockups, Microsoft Copilot, Authentications, Front-End Web Development, Programming Principles, UI Components, Javascript
Beginner · Professional Certificate · 3 - 6 Months

Coursera
Skills you'll gain: Linux Commands, Linux, Unix Commands, Command-Line Interface, File Management, System Configuration, Linux Administration, Package and Software Management, DevOps
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: User Experience Design, Responsive Web Design, Web Design and Development, Prototyping, Graphic and Visual Design, User Interface and User Experience (UI/UX) Design, Figma (Design Software), Web Design, User Interface (UI), Wireframing, Typography, Web Applications, Mobile Development, Design Thinking
Beginner · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Object Oriented Programming (OOP), Animation and Game Design, Interactive Data Visualization, Software Design, Data Structures, Visualization (Computer Graphics), Interactive Design, Programming Principles, Graphic and Visual Design, Python Programming, Generative AI, Simulations, Computer Graphics, Design, Computational Logic, Computer Programming, Creative Design, Data Import/Export, Computational Thinking, Animations
Beginner · Specialization · 3 - 6 Months

Macquarie University
Skills you'll gain: Mobile Security, Anomaly Detection, Criminal Investigation and Forensics, Cyber Security Strategy, Cyber Threat Intelligence, Threat Detection, Investigation, Cyber Attacks, File Systems, Intrusion Detection and Prevention, Fraud detection, Mobile Development, Cybersecurity, Applied Machine Learning, Malware Protection, Cyber Security Policies, Apple iOS, Threat Modeling, Artificial Intelligence and Machine Learning (AI/ML), Data Security
Intermediate · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Public Key Infrastructure, Key Management, Public Key Cryptography Standards (PKCS), Cryptography, Authentications, Encryption, Network Security, Algorithms
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Java Platform Enterprise Edition (J2EE), Application Deployment, Web Applications, Application Servers, Java, Application Development, Web Development, Server Side, Application Frameworks
Intermediate · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Apple iOS, iOS Development, Apple Xcode, Video Game Development, Swift Programming, Mobile Development, Geographic Information Systems, Game Design, Interactive Design, Animation and Game Design, Animations, Interaction Design, Human Computer Interaction, User Interface (UI), Global Positioning Systems, User Interface (UI) Design, Application Development
Mixed · Course · 1 - 4 Weeks