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.

Simplilearn
Skills you'll gain: Data Structures, C (Programming Language), C and C++, Programming Principles, Data Management, Memory Management, Algorithms, Computer Programming, File I/O, Program Development, File Management, Other Programming Languages, Development Environment, Computational Logic
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Exploitation techniques, Penetration Testing, Vulnerability Scanning, Proxy Servers, Security Testing, Vulnerability Assessments, Test Tools
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: OSI Models, Network Security, Security Controls, General Networking, Wireless Networks, Network Protocols, Firewall, Network Administration, TCP/IP, Telecommunications, Proxy Servers, Distributed Denial-Of-Service (DDoS) Attacks, Network Infrastructure, System Configuration, Network Architecture, Intrusion Detection and Prevention, Hardening, Remote Access Systems, Authentications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Hardware Architecture, Data Storage, Computer Systems, Memory Management
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: AI Workflows, Agentic Workflows, LangGraph, AI Orchestration, Agentic systems, Generative AI Agents, LangChain, LLM Application, AI Integrations, Software Architecture, Systems Architecture, Software Design, Data Validation, Data Persistence, Context Management, Scalability, Systems Integration, Memory Management
Intermediate · Course · 1 - 4 Weeks

Fortinet, Inc.
Skills you'll gain: Network Support, Network Troubleshooting, Firewall, Network Monitoring, Technical Support and Services, Network Security, Virtual Private Networks (VPN), Lightweight Directory Access Protocols, System Monitoring, Authentications, Performance Tuning, Security Software, System Configuration, Cybersecurity, Memory Management, Malware Protection
Intermediate · Course · 1 - 3 Months

Edureka
Skills you'll gain: LangGraph, Retrieval-Augmented Generation, Generative AI Agents, AI Orchestration, CrewAI, Agentic Workflows, Agentic systems, LangChain, LLM Application, AI Integrations, Systems Integration, Tool Calling, Responsible AI, Large Language Modeling, Prompt Engineering, Restful API, Memory Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: OpenAI API, LLM Application, OpenAI, Agentic Workflows, Model Context Protocol, Generative AI Agents, Agentic systems, Decision Intelligence, Tool Calling, Prompt Engineering, ChatGPT, AI Integrations, Artificial Intelligence, Application Programming Interface (API), Context Management, Large Language Modeling, Python Programming, Memory Management, Development Environment, Application Deployment
Intermediate · Course · 1 - 4 Weeks

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

University of Colorado System
Skills you'll gain: Network Security, Distributed Denial-Of-Service (DDoS) Attacks, Hardening, Cryptographic Protocols, Cybersecurity, Encryption, Security Controls, Proxy Servers, Information Privacy, Servers, Communication Systems, Web Servers, Network Routing, Network Analysis, Cloud Hosting, Cloud Deployment
Intermediate · Course · 1 - 4 Weeks

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
Intermediate · Course · 1 - 4 Weeks

Politecnico di Milano
Skills you'll gain: Application Specific Integrated Circuits, Amazon Elastic Compute Cloud, Cloud Infrastructure, Cloud Deployment, Amazon Web Services, Hardware Architecture, Cloud Applications, Performance Tuning, Software Development, Computer Architecture, Dataflow, Development Environment, Software Development Tools, Memory Management, Computational Logic, Programming Principles
Intermediate · Course · 1 - 3 Months