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.

University of Pennsylvania
Skills you'll gain: Social Network Analysis, Social Media Strategy, Content Marketing, Social Media Content, Social Media Marketing, Shared Media, Consumer Behaviour, Driving engagement, Marketing Communications, Content Creation, Influencing, Social Media Campaigns, Persuasive Communication, Advertising, Marketing, Earned Media, Marketing Psychology, Promotional Strategies, Decision Making
Mixed · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Generative AI Agents, Agentic Workflows, Context Engineering, LLM Application, Model Context Protocol, Agentic systems, Tool Calling, Generative AI, Context Management, Application Deployment, Cloud Deployment, Model Evaluation, Memory Management, Data Persistence
Beginner · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), Java, Object Oriented Design, Java Programming, Maintainability, Software Design, Data Structures, Software Architecture, Memory Management, Programming Principles, Code Reusability, Data Management, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Embedded Software, Embedded Systems, C (Programming Language), System Programming, Microarchitecture, Hardware Architecture, Software Design, C and C++, Computer Architecture, Maintainability, Event-Driven Programming, Debugging, Computer Hardware, Memory Management, Code Reusability, Secure Coding, Programming Principles, Data Structures, Peripheral Devices, Data Storage
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Software Configuration Management, Embedded Software, Embedded Systems, Configuration Management, Git (Version Control System), Version Control, Memory Management, Build Tools, Software Development Tools, C (Programming Language), Development Environment, Program Development, Code Review, Software Technical Review, Software Design, Debugging, Make.com
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Java Programming, Java, Software Architecture, Memory Management, Code Reusability, Software Design, Maintainability, Application Design, Programming Principles, Secure Coding, User Interface (UI) Design, Javascript
Beginner · Course · 3 - 6 Months

EDUCBA
Skills you'll gain: Apple iOS, iOS Development, Model View Controller, Mobile Development, Swift Programming, Software Architecture, Maintainability, Application Design, Memory Management, Application Development, Web Applications, Web Components, Web Services, Real Time Data, Web Design and Development, Web Development, UI Components, Project Implementation, Data Validation, Design
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), File I/O, Data Persistence, Object Oriented Design, Java, Java Programming, File Management, Memory Management, Code Reusability, Application Development, Maintainability, Computer Programming, Software Design, Development Environment, Program Development, Application Design, Programming Principles, Computer Programming Tools, Data Structures, Integrated Development Environments
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Docker (Software), Linux Administration, Devops Tools, Containerization, DevOps, System Monitoring, Information Technology Operations, System Configuration, Performance Tuning, Configuration Management, Context Management, Network Troubleshooting, Debugging, Proxy Servers, Data Storage, Service Management, Software Installation, Command-Line Interface, Performance Measurement, Resource Management
Advanced · Course · 1 - 4 Weeks

KodeKloud
Skills you'll gain: API Gateway, Kubernetes, Nginx, Cloud-Native Computing, Software-Defined Networking, Proxy Servers, Web Servers, Public Key Infrastructure, DevOps, Continuous Deployment, Network Troubleshooting, Role-Based Access Control (RBAC), Infrastructure Security, Computer Networking, Application Deployment, Network Security, Security Controls, System Configuration, Security Software, Verification And Validation
Intermediate · Course · 1 - 3 Months

KodeKloud
Skills you'll gain: Nginx, Proxy Servers, Hardening, Web Servers, Performance Tuning, Network Monitoring, Infrastructure Security, Network Performance Management, Linux Administration, Authentications, Security Controls, Application Performance Management, Network Troubleshooting, Network Security, System Monitoring, System Configuration, Load Balancing, Cybersecurity, DevOps, Computer Networking
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Embedded Software, Embedded Systems, Debugging, Data Structures, System Programming, Microarchitecture, C (Programming Language), Memory Management, Hardware Architecture, Computer Architecture, Software Design, Maintainability, Computer Programming Tools, System Configuration, Code Reusability, Peripheral Devices
Intermediate · Course · 1 - 4 Weeks