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

Skills you'll gain: Software Installation, Python Programming, Data Structures, Data Processing, Programming Principles, Data Management, Scripting Languages, Scripting, Development Environment, Computer Programming, Code Reusability, Functional Testing, Debugging, Problem Solving
Beginner · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Debugging, Unit Testing, File I/O, Test Case, Integrated Development Environments, Software Testing, Data Import/Export, Program Development, Development Environment, Technical Communication, Python Programming, Programming Principles
Intermediate · Course · 1 - 4 Weeks

University of Washington
Skills you'll gain: Ruby (Programming Language), Other Programming Languages, Object Oriented Programming (OOP), Object Oriented Design, Programming Principles, Functional Design, Code Reusability
Mixed · Course · 1 - 3 Months

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

Skills you'll gain: Code Reusability, Mathematical Software, Programming Principles, Statistical Analysis, Software Installation, Descriptive Statistics
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Microsoft Visual Studio, C# (Programming Language), Integrated Development Environments, Microsoft Development Tools, Program Development, Programming Principles, C and C++, Computer Programming, Command-Line Interface, Computational Logic
Beginner · Guided Project · Less Than 2 Hours

Packt
Skills you'll gain: Python Programming, Development Environment, Debugging, Programming Principles, Data Structures, Computer Programming, Automation
Beginner · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Shell Script
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Web Development Tools, Javascript, Code Reusability, Programming Principles, Development Environment, Integrated Development Environments, Computer Programming, Debugging, Hypertext Markup Language (HTML), HTML and CSS, Cascading Style Sheets (CSS)
Beginner · Course · 1 - 4 Weeks

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Scala Programming, Programming Principles, Theoretical Computer Science, Other Programming Languages, Computer Programming, Computational Logic, Functional Design, Data Structures, Memory Management, System Implementation, Data Mapping
Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Data Science, Web Applications, Python Programming, Data Analysis, Programming Principles, Artificial Intelligence, Computer Programming, Game Design
Beginner · Guided Project · Less Than 2 Hours