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: Test Script Development, Performance Testing, Performance Stress Testing, Test Tools, Verification And Validation, Software Testing, Test Data, Data Validation, Scripting, Scenario Testing, Proxy Servers, Distributed Computing, Software Installation, System Monitoring, Servers, Configuration Management
Intermediate · Course · 3 - 6 Months

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
Build toward a degree
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
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, Prompt Engineering Tools, LLM Application, AI Workflows, AI Orchestration, No-Code Development, Retrieval-Augmented Generation, Generative AI Agents, Memory Management, Agentic systems, Application Programming Interface (API), Software Installation
Beginner · Course · 1 - 3 Months

Emory University
Skills you'll gain: Marketing, Marketing Strategy and Techniques, Marketing Effectiveness, Marketing Planning, Marketing Management, Earned Media, Marketing Communications, Promotions and Campaigns, Branding, Market Dynamics, Target Market, Product Promotion, Customer Insights, Owned Media, Conversion Funnel Analysis, Order Delivery
Beginner · 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, Agentic systems, Document Management, Memory Management
Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Computer Graphics, Software Architecture, Development Environment, Software Design, Maintainability, Software Visualization, Systems Architecture, Software Design Patterns, Code Reusability, Graphics Software, Visualization (Computer Graphics), Systems Design, Cross Platform Development, Computer Graphic Techniques, Image Quality, System Design and Implementation, Dataflow, Memory Management, Performance Tuning, Scalability
Beginner · Specialization · 3 - 6 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

International Institute of Information Technology, Hyderabad
Skills you'll gain: Microarchitecture, Computer Architecture, Hardware Architecture, Systems Architecture, Computer Systems, Computer Hardware, Performance Tuning, Memory Management
Intermediate · Course · 1 - 4 Weeks

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, Infrastructure Security, Cyber Security Policies
Intermediate · Course · 1 - 3 Months

Edureka
Skills you'll gain: Memory Management, Code Reusability, Programming Principles, Integrated Development Environments, Web Development, System Programming, Maintainability
Beginner · Course · 1 - 4 Weeks