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.

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Object Oriented Programming (OOP), Java Programming, Java, Object Oriented Design, Computer Programming, Memory Management
★ 4.7 (319) · Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Debugging, Program Development, Software Documentation, Pseudocode, C++ (Programming Language), Programming Principles, Computer Programming, Computer Programming Tools, Memory Management
★ 4.4 (36) · Beginner · Course · 1 - 3 Months

National Taiwan University
Skills you'll gain: Programming Principles, Computer Programming, C (Programming Language), Data Structures, Computational Logic, Program Development, Memory Management
★ 4.8 (370) · Mixed · 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, Programming Principles, Code Reusability, Integrated Development Environments, Computational Logic, Development Environment
★ 4.7 (1.5K) · Mixed · Course · 1 - 4 Weeks

Peking University
Skills you'll gain: File Systems, Operating Systems, Memory Management, OS Process Management, System Software, Computer Systems, File Management, File I/O, Unix, Performance Tuning, Algorithms
★ 4.6 (363) · Intermediate · Course · 3 - 6 Months

Skills you'll gain: Network Troubleshooting, Display Devices, Cloud Computing Architecture, Networking Hardware, Dynamic Host Configuration Protocol (DHCP), Cloud Computing, Firewall, Virtual Networking, Mobile Security, Network Infrastructure, USB, Computer Networking, Cloud Services, Network Support, Microarchitecture, System Configuration, Computer Systems, Data Storage, Information Technology, Memory Management
★ 4.5 (94) · Intermediate · Specialization · 3 - 6 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 (108) · Intermediate · Course · 1 - 4 Weeks

L&T EduTech
Skills you'll gain: Embedded Software, Peripheral Devices, Integrated Development Environments, Embedded Systems, Internet Of Things, Microarchitecture, Automation, Real Time Data, Hardware Architecture, Computer Architecture, Prototyping, Memory Management
★ 4.6 (299) · Beginner · Course · 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
★ 4.4 (52) · Beginner · Professional Certificate · 3 - 6 Months

University of California, Irvine
Skills you'll gain: Internal Communications, Corporate Communications, Media Relations, Storytelling, Strategic Communication, Employee Engagement, Target Audience, Diversity Equity and Inclusion Initiatives, Earned Media, Public Relations, Crisis Management, Drive Engagement, Social Media Marketing, Social Media, Social Media Management, Business Communication, Telecommuting, Stakeholder Communications, Employee Retention, Diversity and Inclusion
★ 4.6 (170) · Beginner · Specialization · 1 - 3 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 (82) · Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Memory Management, Performance Tuning, System Programming, Hardware Architecture, Program Development, Computer Architecture, Performance Testing, Computer Hardware, Algorithms
★ 2.9 (68) · Intermediate · Course · 1 - 3 Months