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.

Google Cloud
Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Network Security, Network Monitoring, Firewall, Google Cloud Platform, Cloud Security, Intrusion Detection and Prevention, Identity and Access Management, Proxy Servers, Network Administration, Threat Detection, Virtual Networking, Cyber Security Policies
★ 4.6 (10) · Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Java Programming, Java, OS Process Management, Memory Management, Data Sharing
Intermediate · Course · 1 - 4 Weeks

Total Seminars
Skills you'll gain: Hardware Troubleshooting, Computer Hardware, Data Storage Technologies, Data Storage, Encryption, System Configuration, Electronic Hardware, Hardware Architecture, Cloud Storage, Desktop Support, Power Electronics, IT Infrastructure, USB, Help Desk Support, Performance Tuning, Memory Management, IT Security Architecture, IT Management
Beginner · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Object Oriented Design, Java Programming, Java, Object Oriented Programming (OOP), Data Persistence, Software Design Patterns, Maintainability, Memory Management, Programming Principles, Code Reusability, Functional Design, Computer Programming, Oracle Databases, File Systems, Computational Logic, API Design, Data Structures, Software Design, File Management, Data Management
Intermediate · Specialization · 3 - 6 Months

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

Skills you'll gain: Apache Maven, Java, Object Oriented Design, Build Tools, Memory Management, Hibernate (Java), Unit Testing, File I/O, Data Persistence, Docker (Software), Software Testing, Software Design Patterns, Integrated Development Environments, Object-Relational Mapping, Functional Design, Maintainability
Beginner · Specialization · 3 - 6 Months

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

Edureka
Skills you'll gain: Java, Java Programming, Object Oriented Programming (OOP), Computer Programming, Object Oriented Design, Memory Management, Programming Principles, Software Engineering, Debugging, Program Development, Data Structures, IntelliJ IDEA, Application Development, Software Development, Virtual Machines
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Mapping, Memory Management, Exploit development, Web Applications, Computational Logic, Code Reusability, Authorization (Computing), Software Development Tools, Security Controls, Other Programming Languages, Program Development, Data Storage
★ 4.8 (12) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Pandas (Python Package), Pivot Tables And Charts, Data Manipulation, Data Import/Export, Data Wrangling, Jupyter, Data Visualization, Microsoft Excel, Data Transformation, Plot (Graphics), Data Analysis Software, Data Analysis, Data Cleansing, Data Preprocessing, Memory Management, Analytics, Sampling (Statistics), Operations
★ 4.7 (13) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Blogs, Search Engine Optimization, Content Performance Analysis, Content Marketing, Brand Loyalty, Branding, Keyword Research, Content Creation, Web Analytics, Customer Engagement, Thought Leadership, Customer Relationship Building, Promotional Strategies, Content Management Systems, Business Marketing
★ 4.6 (23) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: C and C++, C++ (Programming Language), Object Oriented Design, Object Oriented Programming (OOP), Debugging, Code Reusability, Computer Programming, Memory Management, Programming Principles, Program Development, Functional Design
Intermediate · Course · 1 - 4 Weeks