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: Real-Time Operating Systems, Embedded Software, Software Architecture, Code Reusability, Embedded Systems, Memory Management, Systems Architecture, Software Design, Software Design Patterns, Performance Tuning, Safety Assurance, Software Testing, Secure Coding, Scalability, Data Sharing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Memory Management, Web Development, Performance Testing, System Programming
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Unified Modeling Language, Software Design Patterns, C++ (Programming Language), Software Architecture, Object Oriented Design, Software Design, Code Reusability, Object Oriented Programming (OOP), Maintainability, Programming Principles, Memory Management
Intermediate · Course · 1 - 3 Months

University of Arizona
Skills you'll gain: Integrated Marketing Communications, Advertising, Advertising Campaigns, Marketing Communications, Media Strategy, Paid media, Owned Media, Customer Advocacy, Journey Mapping, Branding, Cross-Channel Marketing, Digital Media Strategy, Earned Media, Search Engine Optimization, Customer Engagement, Content Development and Management, Goal Setting, Brand Awareness, Culture, Consumer Behaviour
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Secure Coding, Application Security, Security Engineering, Web Development Tools, Software Design Patterns, Exploit development, Web Applications, Application Development, Code Reusability, Authorization (Computing), Security Controls, Software Architecture, Object Oriented Programming (OOP), Transaction Processing, Scalability, Memory Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Oracle Databases, Memory Management, Database Management, Database Architecture and Administration, Relational Databases, Database Software, Data Storage Technologies, Performance Tuning, Servers, Database Management Systems, User Accounts, Disaster Recovery, Data Storage, Role-Based Access Control (RBAC), System Configuration, Authentications
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: AI Orchestration, AI Workflows, LLM Application, Agentic Workflows, Generative AI Agents, Agentic systems, Tool Calling, LangChain, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Memory Management, Model Evaluation, Context Management, Performance Testing, Development Testing, Debugging
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Nginx, Web Servers, Apache, Ansible, Server Administration, Proxy Servers, Linux Servers, Application Servers, Servers, Docker (Software), System Configuration, PHP (Scripting Language), Containerization, Django (Web Framework), Software Installation, Configuration Management, Performance Tuning, Scalability
Beginner · Course · 1 - 3 Months

Skills you'll gain: Network Troubleshooting, General Networking, OSI Models, Network Protocols, Network Support, Networking Hardware, TCP/IP, Microsoft Windows, Network Routers, Network Switches, Network Administration, Local Area Networks, Computer Networking, Technical Support and Services, Network Model, Computer Hardware, System Configuration, Command-Line Interface, iOS Development, Memory Management
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Terraform, Infrastructure as Code (IaC), Cloud Management, Google Cloud Platform, Cloud Computing, PostgreSQL, MySQL, Cloud Infrastructure, Proxy Servers
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Rust (Programming Language), Authentications, Back-End Web Development, Web Servers, Web Frameworks, Databases, Server Side, Web Applications, Restful API, Application Programming Interface (API), Data Sharing, Data Structures, Memory Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Memory Management
Advanced · Course · 1 - 3 Months