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.

Universidad Nacional Autónoma de México
Skills you'll gain: Java, Java Programming, Object Oriented Programming (OOP), Object Oriented Design, Computer Programming, Software Design, Programming Principles, Program Development, Software Documentation, Data Structures, Computational Logic, Memory Management
★ 4.1 (942) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Node.JS, Server Side, Web Applications, Web Frameworks, Real Time Data, Live Streaming, Network Model, Frontend Integration, Data Sharing, Network Protocols, File I/O, Event-Driven Programming, Secure Coding, Frontend Performance, Browser Compatibility, Javascript, Memory Management, Dynamic Host Configuration Protocol (DHCP), Network Routers, Debugging
Intermediate · Course · 1 - 3 Months

University of California, Santa Cruz
Skills you'll gain: C++ (Programming Language), C and C++, Go (Programming Language), File I/O, Data Structures, Object Oriented Programming (OOP), Object Oriented Design, Software Design Patterns, Debugging, Computer Programming, Programming Principles, Unit Testing, Algorithms, C (Programming Language), Program Development, Software Design, Graph Theory, Software Testing, Code Reusability, Memory Management
★ 4.4 (2.5K) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: System Programming, Linux Administration, Embedded Software, Linux, System Software, Linux Commands, Debugging, Linux Servers, Operating Systems, OS Process Management, Microarchitecture, Scalability, Memory Management, C (Programming Language), Hardware Architecture, Performance Tuning, Software Design, Data Integrity, Data Sharing
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: System Programming, Memory Management, Performance Tuning, OS Process Management, Operating Systems, Linux Administration, Linux, Real-Time Operating Systems, System Software, Operating System Administration, Linux Servers, Linux Commands, C (Programming Language), System Configuration, Hardware Architecture, Systems Analysis, Resource Management, Debugging
Intermediate · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Object Oriented Programming (OOP), C (Programming Language), Python Programming, Data Import/Export, Memory Management, File I/O, Computational Logic, Network Protocols, Package and Software Management
★ 4.6 (2.5K) · Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Debugging, File I/O, Memory Management, Programming Principles, Maintainability, Software Testing, Program Development, C (Programming Language), Algorithms, Test Planning, Simulations, System Programming, Computer Programming, Data Structures, Software Development, C and C++, Software Engineering, Command-Line Interface, Problem Solving, Software Design
★ 4.6 (7.5K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: z/OS, Job Control Language (JCL), Mainframe Computing, Mainframe Technologies, System Programming, Computer Architecture, Systems Architecture, Program Development, File I/O, Programming Principles, Maintainability, Computational Logic, Data Structures, Data Access, Data Mapping, Computer Science, Computer Programming, Memory Management, Data Validation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Debugging, Integrated Development Environments, Data Structures, Programming Principles, Development Environment, Computational Logic, Python Programming, Code Reusability, Scripting, Functional Design, Command-Line Interface, Memory Management, Software Installation
Beginner · Course · 3 - 6 Months

Skills you'll gain: Secure Coding, Maintainability, Hardening, Java Programming, Software Design Patterns, Application Security, Software Design, Java, Software Architecture, Memory Management, Object Oriented Design, API Design, Code Reusability, Software Development, Object Oriented Programming (OOP), Functional Design, Application Programming Interface (API), Interoperability, System Programming, C (Programming Language)
Advanced · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Secure Coding, Java Programming, Maintainability, Hardening, Java, Software Design Patterns, Application Security, Software Design, Data Structures, Object Oriented Design, Software Architecture, Performance Tuning, Memory Management, API Design, Code Reusability, Object Oriented Programming (OOP), Web Servers, Application Programming Interface (API), Software Development, Virtualization
Intermediate · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Fine-tuning, Large Language Modeling, LLM Application, Hugging Face, Prompt Patterns, Retrieval-Augmented Generation, Prompt Engineering, Debugging, Transfer Learning, Product Support, Model Training, Model Deployment, Model Optimization, Model Evaluation, Data Transformation, Data Cleansing, Natural Language Processing, Data Validation, Memory Management
Beginner · Course · 1 - 3 Months