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.

Skills you'll gain: Java Programming, Java, Object Oriented Programming (OOP), Object Oriented Design, Computer Programming, Virtual Machines, Package and Software Management, Memory Management
★ 4.7 (534) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Kubernetes, Cloud Deployment, IT Automation, Application Lifecycle Management, Software Installation, Dashboard Creation, Network Routing, Memory Management
★ 4.2 (68) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: File I/O, Memory Management, Debugging, C++ (Programming Language), C and C++, Software Documentation, Development Testing, Code Reusability, Vibe coding, Programming Principles, API Design, Program Development, Pseudocode, Software Architecture, Software Design, Functional Design, Performance Tuning, Application Design, Technical Documentation, Generative AI
★ 4.5 (31) · Beginner · Professional Certificate · 3 - 6 Months

National Taiwan University
Skills you'll gain: Programming Principles, Computer Programming, C (Programming Language), Data Structures, C and C++, Program Development, Memory Management
★ 4.8 (370) · Mixed · Course · 1 - 3 Months

Vanderbilt University
Skills you'll gain: AI Orchestration, Agentic Workflows, OpenAI API, Generative AI Agents, LLM Application, Prompt Patterns, AI Workflows, Prompt Engineering, Agentic systems, AI Security, Business Logic, Application Programming Interface (API), File I/O, Transaction Processing, Persona Development, Memory Management
★ 4.7 (130) · Beginner · Course · 1 - 3 Months

Universidad Nacional Autónoma de México
Skills you'll gain: Java, Object Oriented Programming (OOP), Java Programming, Object Oriented Design, Android Development, Android Studio, Mobile Development, Memory Management, Android (Operating System), Programming Principles, Integrated Development Environments, Development Environment
★ 4.7 (1.5K) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Hardware Troubleshooting, Computer Hardware, Hardware Architecture, Microarchitecture, Computer Architecture, IT Infrastructure, Data Storage Technologies, System Configuration, Data Storage, Memory Management
★ 4.5 (71) · Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Bioinformatics, Computational Thinking, Memory Management, Graph Theory, Python Programming
★ 4.6 (140) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: AI Orchestration, AI Workflows, Agentic Workflows, Agentic systems, Generative AI Agents, LLM Application, AI Integrations, Tool Calling, Large Language Modeling, Software Design Patterns, Memory Management
★ 4.7 (95) · Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Hardware Architecture, Microarchitecture, Bash (Scripting Language), Distributed Computing, Scalability, Memory Management, Shell Script, Computer Systems, File I/O, Big Data, Linux Commands, Operating Systems, File Systems, Performance Testing, C and C++, Linux, Computing Platforms, Data Import/Export, C++ (Programming Language), Communication Systems
★ 3.8 (182) · Advanced · Specialization · 3 - 6 Months

Skills you'll gain: Microarchitecture, Computer Architecture, Computer Hardware, System Programming, Data Storage, Memory Management, Performance Tuning, Computational Logic, Computer Programming, C (Programming Language), Program Development, C# (Programming Language)
★ 4.7 (81) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Linux Servers, Linux Administration, Unix, Linux Commands, Linux, Unix Commands, Command-Line Interface, OS Process Management, Operating System Administration, Unix Shell, Debugging, System Monitoring, DevOps, Memory Management, Resource Management
★ 4.7 (23) · Intermediate · Guided Project · Less Than 2 Hours