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.

Johns Hopkins University
Skills you'll gain: Artificial Neural Networks, Image Analysis, Event-Driven Programming, Scalability, Applied Machine Learning, Deep Learning, C and C++, Memory Management, Performance Tuning, C++ (Programming Language), Digital Signal Processing, Linear Algebra, Distributed Computing, Hardware Architecture, Programming Principles, Computer Architecture, System Programming, Program Development, OS Process Management, Machine Learning
★ 3 (217) · Intermediate · Specialization · 3 - 6 Months

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

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Theoretical Computer Science, Computational Logic, Mathematical Theory & Analysis, Algorithms, Computational Thinking, Programming Principles, Computer Science, Graph Theory, Deductive Reasoning, Natural Language Processing, Logical Reasoning, Formal Learning
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Embedded Software, Debugging, Embedded Systems, Memory Management, Integrated Development Environments, C (Programming Language), Computer Programming Tools, Development Environment, C and C++, Software Development Tools, System Programming, Eclipse (Software), Build Tools, Programming Principles, Data Storage
★ 4.7 (75) · Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Memory Management, C (Programming Language), C and C++, Data Structures, Secure Coding, Application Security, System Programming, Programming Principles
★ 4.5 (76) · Intermediate · Course · 1 - 4 Weeks
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

Skills you'll gain: File I/O, Data Import/Export, Java Programming, Java, Programming Principles, Computer Programming, Data Structures, File Systems, File Management, Data Store, Computer Science
★ 4.6 (45) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Programming Principles, Computer Programming, Python Programming, Computational Logic, Computer Science
★ 4.5 (273) · Beginner · Course · 1 - 4 Weeks

Codio
Skills you'll gain: Matplotlib, Statistical Methods, Statistical Hypothesis Testing, Plot (Graphics), Data Analysis, Statistical Analysis, Data Import/Export, Data Visualization, Data Cleansing, Probability & Statistics, Data Manipulation, Descriptive Statistics, Pandas (Python Package), Data Wrangling, Correlation Analysis, Python Programming, Programming Principles, Computer Programming, Scripting, Computational Logic
Mixed · Course · 1 - 3 Months

Skills you'll gain: Debugging, Java Programming, Java, Programming Principles, Computer Programming, Computational Logic, Computer Science, Data Storage
★ 4.5 (120) · Beginner · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Data Structures, C (Programming Language), C and C++, Programming Principles, Data Management, Memory Management, Algorithms, Computer Programming, File I/O, Program Development, File Management, Other Programming Languages, Development Environment, Computational Logic
★ 4.4 (34) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Embedded Software, Performance Tuning, System Programming, Software Development Tools, Embedded Systems, Memory Management, Microarchitecture, Software Development, Hardware Architecture, Debugging, Secure Coding, Build Tools, Application Security, Computer Architecture, System Configuration, Programming Principles, C (Programming Language), Digital Signal Processing, Application Development, C++ (Programming Language)
★ 4.7 (211) · Intermediate · Specialization · 3 - 6 Months