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: 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

Skills you'll gain: Rust (Programming Language), Data Structures, Code Reusability, Memory Management, Package and Software Management, Algorithms, Software Testing
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Query Languages, Data Maintenance, Linux Administration, Operating System Administration, Database Software, Event Monitoring, Database Management Systems, Linux Commands, File I/O, Data Migration, Performance Testing, Data Storage Technologies, Scenario Testing, Memory Management, Data Storage, Software Installation
Intermediate · Specialization · 3 - 6 Months

University of California, Davis
Skills you'll gain: Content Performance Analysis, Content Optimization, Key Performance Indicators (KPIs), Search Engine Optimization, Content Development and Management, Content Strategy, Keyword Research, Content Creation, Content Marketing, Performance Analysis, Web Analytics and SEO, Scalability, Strategic Partnership, Earned Media, AI Integrations, Legal Risk, Cross-Channel Marketing, Process Design
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: z/OS, System Software, Operating Systems, System Programming, Mainframe Computing, System Monitoring, Mainframe Technologies, Operating System Administration, Performance Tuning, System Configuration, OS Process Management, Memory Management, Data Storage, Systems Architecture, Capacity Management, Problem Management, File I/O, Context Management, Software Architecture, Disaster Recovery
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Programming Principles, Data Dictionary, Computational Logic, Data Cleansing, Data Structures, Python Programming, Verification And Validation, Data Manipulation, Memory Management, Logical Reasoning
Mixed · 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: Animation and Game Design, Code Reusability, Animations, Unity Engine, Visualization (Computer Graphics), Software Design Patterns, Game Design, Software Visualization, Video Game Development, User Interface (UI), Application Performance Management, Software Development Tools, Development Environment, System Monitoring, Application Frameworks, Computer Graphics, Performance Tuning, Memory Management, Scripting
Mixed · Course · 1 - 3 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

Pearson
Skills you'll gain: System Programming, Rust (Programming Language), Data Structures, Memory Management, Relational Databases, Other Programming Languages, Databases, Data Access, C (Programming Language), Programming Principles, Application Development, Code Reusability, Object Oriented Programming (OOP), C++ (Programming Language), Interoperability, Systems Integration, File I/O, Command-Line Interface, Software Development, Data Import/Export
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Data Structures, Programming Principles, Object Oriented Programming (OOP), Memory Management, Software Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Security Testing, Test Tools, Vulnerability Scanning, Exploitation techniques, Vulnerability Assessments, Network Protocols, Web Applications, Test Automation, Development Environment, Proxy Servers, Authentications, Software Installation
Beginner · Course · 1 - 3 Months