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.

Skills you'll gain: Docker (Software), Web Applications, Containerization, Devops Tools, Virtual Networking, YAML, Service Management, Memory Management, Command-Line Interface
★ 4.4 (9) · Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Hardware Architecture, Microarchitecture, Memory Management, Cloud Development, Computer Programming Tools, Computing Platforms, OS Process Management
★ 4.4 (9) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: C++ (Programming Language), Software Documentation, Performance Tuning, Application Design, Technical Documentation, Application Development, Memory Management, Data Structures, Generative AI, Algorithms, Scalability
★ 4.9 (7) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Microarchitecture, Computer Architecture, Hardware Architecture, Simulations, Computer Hardware, Performance Tuning, Memory Management, Dependency Analysis
★ 4.8 (8) · Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Memory Management, C++ (Programming Language), C (Programming Language), Object Oriented Programming (OOP), Object Oriented Design, Data Structures, Programming Principles, Software Design, Python Programming, Java, Algorithms, Performance Tuning
★ 4.5 (13) · Intermediate · Course · 1 - 3 Months

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, System Programming, Algorithms, Code Reusability, Program Development, Integrated Development Environments, Software Installation, Problem Solving
★ 4.8 (8) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Instagram, TikTok, Debugging, Keyword Research, Podcasting, Video Production, Vibe coding, Prototyping, Social Media Content, Social Media Management, Shared Media, Social Media Marketing, Search Engine Optimization, Copywriting, Mobile Development, Paid media, Business Planning, Mobile Development Tools, Earned Media, Other Mobile Programming Languages
Beginner · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Unreal Engine, C++ (Programming Language), Video Game Development, Game Design, Object Oriented Programming (OOP), Object Oriented Design, Programming Principles, Application Development, Application Design, Memory Management
★ 4.8 (18) · Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Microsoft Copilot, Scalability, Software Architecture, Performance Tuning, Query Languages, Systems Architecture, Database Management, Distributed Computing, .NET Framework, Maintainability, Back-End Web Development, Memory Management
★ 4.6 (16) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: AI Orchestration, AI Workflows, CrewAI, LangGraph, Agentic Workflows, LLM Application, LangChain, Large Language Modeling, Agentic systems, Generative AI Agents, AI Integrations, Application Deployment, Artificial Intelligence and Machine Learning (AI/ML), Software Architecture, Systems Architecture, Context Management, API Design, Software Design, Data Validation, Memory Management
★ 4 (6) · Intermediate · Specialization · 1 - 3 Months

Xi'an Jiaotong University
Skills you'll gain: Operating Systems, Computer Systems, Debugging, Microsoft Visual Studio, OS Process Management, Computer Hardware, C# (Programming Language), Computer Architecture, Object Oriented Programming (OOP), Programming Principles, Memory Management, Integrated Development Environments, Computational Logic, Computer Programming, System Design and Implementation
★ 3.9 (40) · Mixed · Course · 1 - 4 Weeks

Xi'an Jiaotong University
Skills you'll gain: Operating Systems, Microsoft Office, Computer Networking, System Software, Computer Systems, Network Architecture, OS Process Management, Theoretical Computer Science, Computer Science, General Networking, Computer Architecture, Hardware Architecture, Network Protocols, Computer Literacy, Computational Logic, Computing Platforms, Programming Principles, Memory Management, Computer Hardware
★ 3.9 (35) · Mixed · Course · 1 - 3 Months