Free courses can help you learn coding languages like Python and JavaScript, data analysis techniques, and web development fundamentals. You can build skills in problem-solving, algorithm design, and creating interactive websites. Many courses introduce tools such as Git for version control, SQL for database management, and various frameworks that streamline web development, allowing you to apply your skills in practical projects.

University of Illinois Urbana-Champaign
Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), Object Oriented Design, Development Environment, Engineering Software, Computer Programming, Software Engineering, Data Structures, Memory Management, Computer Programming Tools, Integrated Development Environments, Debugging, Program Development
Intermediate · Course · 1 - 4 Weeks

Total Seminars
Skills you'll gain: Computer Hardware, Hardware Troubleshooting, Hardware Architecture, Peripheral Devices, System Support, Safety Standards, System Configuration, Computer Systems, Computer Architecture, Memory Management, Microarchitecture, IT Infrastructure, Information Technology, IT Management, Computer Programming, IT Service Management
Beginner · Course · 1 - 3 Months

Peking University
Skills you'll gain: Data Structures, Algorithms, C++ (Programming Language), Memory Management, C and C++, Graph Theory, Object Oriented Programming (OOP), File I/O, Object Oriented Design, Computational Thinking, C (Programming Language), Programming Principles, Theoretical Computer Science, Program Development, Computer Programming, Computer Science, Application Development, Systems Development, Data Storage, Computer Architecture
Beginner · Specialization · 3 - 6 Months

University of Pennsylvania
Skills you'll gain: Social Network Analysis, Social Media Strategy, Content Marketing, Social Media Content, Social Media Marketing, Shared Media, Consumer Behaviour, Driving engagement, Marketing Communications, Content Creation, Influencing, Social Media Campaigns, Persuasive Communication, Advertising, Marketing, Earned Media, Marketing Psychology, Promotional Strategies, Decision Making
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: AI Workflows, AI Orchestration, Generative AI Agents, Agentic Workflows, Agentic systems, LLM Application, Large Language Modeling, Artificial Intelligence, AI Personalization, Automation, Context Management, Memory Management
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Data Modeling, Python Programming, Object Oriented Programming (OOP), Data Persistence, Context Management, Data Structures, Memory Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Unity Engine, User Interface (UI), Scripting, UI Components, Game Design, User Interface (UI) Design, Animation and Game Design, Interactive Design, Performance Tuning, User Interface and User Experience (UI/UX) Design, Video Game Development, Artificial Intelligence, Data Structures, C# (Programming Language), Animations, Model Optimization, Virtual Reality, Event-Driven Programming, Memory Management
Intermediate · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: C++ (Programming Language), Data Structures, Object Oriented Programming (OOP), Object Oriented Design, Graph Theory, Development Environment, Data Storage, Engineering Software, Unstructured Data, Computer Programming, Software Engineering, Algorithms, Memory Management, Computer Programming Tools, Integrated Development Environments, Debugging, Program Development, Database Systems, Theoretical Computer Science
Intermediate · Specialization · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Secure Coding, Application Security, Mobile Security, Vulnerability Assessments, Vulnerability Management, Application Frameworks, Program Development, Risk Management Framework, Cyber Security Policies, Computer Security, Security Controls, C and C++, C# (Programming Language), Java Programming, C++ (Programming Language), PHP (Scripting Language), Python Programming, C (Programming Language), Memory Management, Data Validation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Go (Programming Language), Memory Management, Debugging, Code Reusability, Object Oriented Programming (OOP), Other Programming Languages
Advanced · Course · 1 - 3 Months
LearnQuest
Skills you'll gain: Java Programming, Spring Framework, Java, File I/O, Object Oriented Programming (OOP), Object Oriented Design, Java Platform Enterprise Edition (J2EE), Programming Principles, Software Design, Computer Programming, Data Structures, Software Installation, Virtual Machines, Code Reusability, Web Development, Package and Software Management, Memory Management, Computational Logic, Development Environment, Functional Design
Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Software Configuration Management, Embedded Software, Embedded Systems, Configuration Management, Git (Version Control System), Version Control, Memory Management, Build Tools, Software Development Tools, C (Programming Language), Development Environment, Program Development, Code Review, Software Technical Review, Software Design, Debugging, Make.com
Intermediate · Course · 1 - 4 Weeks