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: Computer Architecture, Mainframe Computing, Mainframe Technologies, Microarchitecture, Systems Architecture, Hardware Architecture, Data Storage, Computer Science, Programming Principles, System Programming, Data Structures, Computational Logic, Computer Hardware, Program Development, Computer Programming, Memory Management
Intermediate · Course · 1 - 3 Months

Edureka
Skills you'll gain: Rust (Programming Language), Code Reusability, Data Manipulation, System Programming, Data Structures, Memory Management, Performance Tuning, Data Management, Data Analysis, Web Development, Application Development
Advanced · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Generative AI Agents, Agentic Workflows, Agentic systems, Generative AI, Prompt Engineering, Prompt Patterns, LLM Application, Systems Architecture, Tool Calling, Natural Language Processing, Context Management, Debugging, Memory Management, Verification And Validation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Hardening, Linux Administration, System Monitoring, Linux Commands, Performance Tuning, Linux, Systems Administration, File Management, Network Troubleshooting, Command-Line Interface, Operating System Administration, Memory Management, Security Management, Debugging, Service Management, OS Process Management, Data Maintenance
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, Java, Object Oriented Programming (OOP), Object Oriented Design, Eclipse (Software), Computer Programming, Development Environment, Integrated Development Environments, Programming Principles, Data Structures, Memory Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: C and C++, C++ (Programming Language), Development Environment, Performance Tuning, Test Tools, System Programming, Docker (Software), Computer Architecture, Containerization, Development Testing, Programming Principles, Software Development Tools, Hardware Architecture, Algorithms, Computer Programming, Python Programming, Debugging, Memory Management, Software-Defined Networking, Scripting
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Linux, Ubuntu, Linux Administration, Linux Servers, General Networking, Memory Management, Linux Commands, OS Process Management, Firewall, File Systems, Bash (Scripting Language), Network Security, Command-Line Interface, File Management, Unix Shell, Operating Systems, Systems Administration, Virtualization, Virtual Environment, Virtualization and Virtual Machines
Beginner · Course · 1 - 3 Months

Skills you'll gain: Rust (Programming Language), OpenAI API, Generative AI Agents, Package and Software Management, Memory Management, Development Environment, LLM Application, Large Language Modeling, Unit Testing, Agentic systems, Software Documentation, Software Installation
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: MITRE ATT&CK Framework, Metasploit, Penetration Testing, Exploit development, Exploitation techniques, Cybersecurity, Operating System Administration, Operating Systems, Hardening, Computer Security, Malware Protection, Vulnerability Assessments, Security Controls, Authorization (Computing), Memory Management, Data Persistence, Computer Architecture
Intermediate · Course · 1 - 3 Months

Edureka
Skills you'll gain: Memory Management, Communication Systems, Data Sharing, Web Development
Beginner · Course · 1 - 3 Months

University of California, Santa Cruz
Skills you'll gain: C and C++, C++ (Programming Language), Object Oriented Programming (OOP), Memory Management, C (Programming Language), Algorithms, File I/O, Graph Theory, Data Structures, Secure Coding, Scaled Agile Framework
Intermediate · Course · 1 - 3 Months

Simplilearn
Skills you'll gain: LangChain, LLM Application, Retrieval-Augmented Generation, Embeddings, Large Language Modeling, Tool Calling, AI Workflows, Context Management, Generative AI Agents, Vector Databases, Data Store, Agentic systems, Memory Management
Beginner · Course · 1 - 4 Weeks