Free programming courses can help you learn coding languages like Python, JavaScript, and Ruby, along with foundational concepts such as algorithms and data structures. You can build practical skills in web development, software debugging, and creating applications, which are crucial for tackling real-world challenges.

Duke University
Skills you'll gain: UI Components, User Interface (UI), Computational Thinking, HTML and CSS, Web Design and Development, Interactive Design, Hypertext Markup Language (HTML), Web Development, Programming Principles, Web Design, Javascript, Event-Driven Programming, Computer Programming, Program Development, Algorithms, Web Applications, Cascading Style Sheets (CSS)
★ 4.6 (15K) · Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Microsoft Visual Studio, R (Software), Debugging, R Programming, Data Structures, Microsoft Development Tools, Software Documentation, Programming Principles, Statistical Programming, Program Development, Code Reusability, Development Environment, Data Manipulation, Computational Logic, Scripting, Functional Design, Software Installation
★ 5 (6) · Beginner · Course · 1 - 4 Weeks
University of Toronto
Skills you'll gain: Computer Programming, Data Structures, Test Automation, Programming Principles, Object Oriented Programming (OOP), Unit Testing, Python Programming, Object Oriented Design, Program Development, Algorithms, Test Case, Development Testing, Software Testing
★ 4.6 (732) · Mixed · Course · 1 - 3 Months

University of California, Santa Cruz
Skills you'll gain: C++ (Programming Language), Object Oriented Design, Software Design Patterns, Object Oriented Programming (OOP), Software Design, C (Programming Language), Algorithms, Memory Management, Graph Theory, Artificial Intelligence, Data Structures, Simulations
★ 4.5 (336) · Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Data Structures, Programming Principles, Python Programming, Computer Programming, Web Development Tools, Software Engineering, Web Development
★ 4.6 (39) · Beginner · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Object Oriented Programming (OOP), C++ (Programming Language), Object Oriented Design, Memory Management, Computer Programming, Code Reusability, Programming Principles, Algorithms, Data Structures, Data Manipulation
★ 4.4 (59) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: COBOL (Programming Language), CI/CD, File I/O, Debugging, Continuous Integration, Software Development, Mainframe Computing, Continuous Deployment, Development Environment, Program Development, Mainframe Technologies, Integrated Development Environments, Programming Principles, File Management, Computer Programming, Computational Logic, Computer Programming Tools
★ 4.6 (192) · Intermediate · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Object Oriented Programming (OOP), Java Programming, Java, Object Oriented Design, File I/O, Application Development, Data Access, Systems Development, Computer Programming, User Interface (UI), Application Design, UI Components, Program Development, Programming Principles, Database Application, Database Management, Databases, System Design and Implementation, Event-Driven Programming, Integrated Development Environments
★ 4.9 (20) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Pseudocode, Programming Principles, Program Development, Software Visualization, Computational Logic, Process Modeling, Diagram Design, Computer Programming Tools, Code Reusability, Computer Programming, Maintainability, Software Documentation, Software Installation
Beginner · Course · 1 - 3 Months

International Institute of Information Technology Bangalore
Skills you'll gain: File I/O, C (Programming Language), Memory Management, Programming Principles, C and C++, Data Structures, Computer Programming, Program Development, Integrated Development Environments, Software Installation, Problem Solving
★ 4.8 (8) · Beginner · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Animations, Software Design, Data Structures, Visualization (Computer Graphics), Interactive Design, Programming Principles, Computer Graphic Techniques, Python Programming, Graphic and Visual Design, Event-Driven Programming, Digital Design, Simulations, Computer Graphics, Design, Game Design, Computational Logic, Computational Thinking, File I/O
★ 5 (7) · Beginner · Specialization · 3 - 6 Months
University of Michigan
Skills you'll gain: Programming Principles, Computer Programming, Python Programming, Program Development, Software Installation, Development Environment
★ 4.7 (41) · Mixed · Course · 1 - 3 Months