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.

University of Leeds
Skills you'll gain: Jupyter, Programming Principles, Computer Programming Tools, Computer Programming, Python Programming, Software Installation, Data Structures, Data Science
★ 4.4 (30) · Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: System Programming, Visual Basic (Programming Language), System Software, Hardware Architecture, Databases, Relational Databases, Algorithms, Computer Architecture, Network Security, Computer Hardware, SQL, Computer Science, Computer Networking, Computer Programming, Network Protocols, Programming Principles, Automation, Cloud Computing, Artificial Intelligence, Debugging
★ 4.6 (113) · Beginner · Course · 1 - 3 Months

University of Washington
Skills you'll gain: Other Programming Languages, Software Design, Ruby (Programming Language), Programming Principles, Data Structures, Computer Programming, Functional Design, Code Reusability
★ 4.9 (789) · Intermediate · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: C (Programming Language), Software Documentation, Programming Principles, Computer Programming, Embedded Software, Computer Programming Tools, Computational Logic, Linux
★ 4.6 (265) · Beginner · Course · 1 - 3 Months
Codio
Skills you'll gain: Apache Maven, Build Tools, JSON, JUnit, Java Programming, Java, Web Services, Programming Principles, Package and Software Management, Data Structures, Object Oriented Programming (OOP), Network Protocols, Unit Testing, Style Guides
★ 4.7 (37) · Intermediate · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Object Oriented Programming (OOP), Programming Principles, Computational Thinking, Code Reusability, Python Programming, Computer Programming, Development Environment, Computational Logic, Integrated Development Environments, System Software, Software Installation, Functional Design
★ 3.3 (10) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, Object Oriented Design, Programming Principles, File I/O, Data Import/Export, Debugging, File Management, Memory Management
Beginner · Course · 3 - 6 Months

Duke University
Skills you'll gain: Debugging, Code Reusability, Algorithms, Microsoft Visual Studio, Problem Solving, Data Processing, Computer Programming Tools, Computational Logic, Python Programming, Software Development, Data Analysis, Scripting Languages
★ 4 (68) · Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Rust (Programming Language), File I/O, Memory Management, Data Structures, Code Reusability, System Programming, Secure Coding
Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Program Development, Debugging, Programming Principles, Python Programming, Computer Programming, Computational Logic, Game Design, Design and Product, Computer Science
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Debugging, Data Structures, Code Reusability, Python Programming, Integrated Development Environments, Scripting, Programming Principles, Computer Programming, Scripting Languages, Computational Logic, Software Installation
Beginner · Course · 1 - 3 Months