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: R (Software), Tidyverse (R Package), Web Scraping, Data Manipulation, Data Wrangling, R Programming, Data Transformation, Memory Management, Data Cleansing, Data Science, Statistical Programming, Data Integration, Data Processing, Text Mining, Data Import/Export, Web Services, Data Analysis, Data Structures, Application Programming Interface (API)
Intermediate · Course · 1 - 3 Months

Peking University
Skills you'll gain: File Systems, Operating Systems, Memory Management, OS Process Management, System Software, Computer Systems, File Management, File I/O, Unix, Performance Tuning, Algorithms
Intermediate · Course · 3 - 6 Months

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)
Intermediate · Specialization · 3 - 6 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Object Oriented Programming (OOP), Java Programming, Java, Object Oriented Design, Computer Programming, Memory Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Microarchitecture, Computer Architecture, Hardware Architecture, Computer Hardware, System Programming, Data Storage, Memory Management, Computational Logic, Computer Programming, C (Programming Language), Data Storage Technologies, Program Development, C# (Programming Language)
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: API Gateway, Application Programming Interface (API), Cloud API, API Design, Application Deployment, Restful API, Continuous Deployment, AI Integrations, Cloud Deployment, LLM Application, Web Services, AI Security, CI/CD, AI Workflows, Token Optimization, Prompt Patterns, Proxy Servers, Large Language Modeling, Application Lifecycle Management, Simple Object Access Protocol (SOAP)
Beginner · Course · 1 - 3 Months

Skills you'll gain: File I/O, C++ (Programming Language), Object Oriented Design, Object Oriented Programming (OOP), C and C++, Debugging, Data Structures, C (Programming Language), Code Reusability, Development Environment, Program Development, Programming Principles, Computer Programming, Memory Management, Computer Programming Tools, Data Persistence, Integrated Development Environments, Algorithms, Data Management, Computational Logic
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Prompt Engineering, LLM Application, OpenAI API, OpenAI, Hugging Face, Large Language Modeling, Agentic systems, Embeddings, AI Workflows, Data Processing, Vector Databases, Retrieval-Augmented Generation, Generative AI Agents, Application Development, Memory Management
Intermediate · Course · 3 - 6 Months

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
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Microarchitecture, Memory Management, System Programming, Embedded Software, Hardware Architecture, Embedded Systems, Computer Architecture, Programming Principles, System Configuration, Debugging
Intermediate · Course · 1 - 3 Months

Dartmouth College
Skills you'll gain: C (Programming Language), Memory Management, System Programming, Computer Architecture, Embedded Software, Programming Principles, Code Reusability, Computer Programming, Linux
Beginner · Course · 1 - 3 Months

Princeton University
Skills you'll gain: Data Structures, Algorithms, Java Programming, Java, Graph Theory, Computer Programming, Computational Thinking, Spatial Data Analysis, Theoretical Computer Science, Memory Management, Simulations, Performance Tuning
Intermediate · Course · 3 - 6 Months