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.

Microsoft
Skills you'll gain: Load Balancing, Scalability, Performance Tuning, Software Architecture, Microsoft Copilot, Application Design, Query Languages, AI Integrations, Software Design Patterns, Performance Testing, Application Performance Management, Distributed Computing, Database Management, SQL, Memory Management
★ 4.8 (14) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Routing Protocols, TCP/IP, Network Switches, Network Routers, Virtual Local Area Network (VLAN), Network Protocols, Network Security, General Networking, Network Routing, Network Troubleshooting, Network Administration, Computer Networking, Open Shortest Path First (OSPF), Network Monitoring, Dynamic Host Configuration Protocol (DHCP), Local Area Networks, Network Planning And Design, Border Gateway Protocol, Network Performance Management, Proxy Servers
★ 4.8 (14) · Intermediate · Course · 1 - 3 Months

International Institute of Information Technology, Hyderabad
Skills you'll gain: Computer Engineering, Computer Science, System Programming, Memory Management, Performance Tuning, Computational Logic, Numerical Analysis, Algorithms, Debugging
★ 4.7 (7) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: File I/O, C++ (Programming Language), Object Oriented Design, Object Oriented Programming (OOP), C and C++, Debugging, Data Structures, C (Programming Language), Code Reusability, Development Environment, Program Development, Programming Principles, Computer Programming, Memory Management, Computer Programming Tools, Data Persistence, Algorithms, Data Management, Computational Logic
★ 4.7 (20) · Intermediate · Specialization · 1 - 3 Months

Scrimba
Skills you'll gain: Prompt Engineering, LangChain, LLM Application, Memory Management, AI Workflows, Vector Databases, Scalability, User Interface (UI), Embeddings, Database Application, Data Store, Retrieval-Augmented Generation, Databases, Large Language Modeling, Performance Tuning, Maintainability, Data Storage, Data Preprocessing
★ 4.7 (39) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: C and C++, C++ (Programming Language), File I/O, Object Oriented Programming (OOP), Object Oriented Design, Programming Principles, Data Structures, Code Reusability, Memory Management, Algorithms
Beginner · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: LangChain, AI Workflows, LLM Application, Generative AI, Large Language Modeling, Prompt Patterns, Hugging Face, Prompt Engineering, Embeddings, AI Security, AI Integrations, Model Deployment, Automation, Memory Management
★ 2.8 (6) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Penetration Testing, Exploit development, Exploitation techniques, Security Testing, Unix, Cyber Operations, Computer Security, Unix Commands, Unix Shell, System Programming, Shell Script, Linux, Debugging, Memory Management, Remote Access Systems, Authentications
Intermediate · Course · 1 - 3 Months

Infosec
Skills you'll gain: Secure Coding, C and C++, Application Security, System Programming, C++ (Programming Language), C (Programming Language), Security Engineering, Interoperability, Unix, Embedded Software, Information Systems Security, OS Process Management, Embedded Systems, Operating Systems, Data Security, Memory Management, Authorization (Computing), Linux
★ 3.9 (11) · Mixed · Course · 1 - 4 Weeks

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, Agentic systems, Document Management, Memory Management
Beginner · Course · 1 - 4 Weeks

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
★ 3.7 (14) · Advanced · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Digital Transformation, Digital Marketing, Marketing, Digital Brand Strategy, Strategic Marketing, Digital Marketing Tools, Marketing Strategies, Product Marketing, Market Dynamics, Consumer Behaviour, Customer Engagement, Earned Media, Promotional Strategies, E-Commerce, Shared Media, Product Development, Revenue Management, Content Creation, Branding, Drive Engagement
★ 4.6 (10) · Beginner · Course · 1 - 4 Weeks