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: Pandas (Python Package), Pivot Tables And Charts, Data Manipulation, Time Series Analysis and Forecasting, Data Import/Export, Data Wrangling, Jupyter, Data Visualization, Microsoft Excel, Data Transformation, Plot (Graphics), Data Analysis, Data Cleansing, Data Preprocessing, Memory Management, Sampling (Statistics)
★ 4.7 (13) · Mixed · Course · 1 - 4 Weeks

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

Skills you'll gain: API Gateway, Kubernetes, Cloud API, Google Cloud Platform, Hybrid Cloud Computing, Application Programming Interface (API), Cloud Platforms, Cloud-Native Computing, API Testing, Istio, Application Deployment, Software Installation, Proxy Servers, Verification And Validation, Configuration Management
★ 4.6 (44) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: C and C++, C++ (Programming Language), Development Environment, Performance Tuning, Test Tools, System Programming, Docker (Software), Computer Architecture, Containerization, Development Testing, Programming Principles, Software Development Tools, Hardware Architecture, Algorithms, Computer Programming, Python Programming, Debugging, Memory Management, Software-Defined Networking, Scripting
Intermediate · 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, Data Store, Agentic systems, Memory Management
★ 3.9 (8) · Beginner · Course · 1 - 4 Weeks

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

University of Geneva
Skills you'll gain: Data-oriented programming, Memory Management, Object Oriented Design, System Programming, Microarchitecture, Performance Testing, Hardware Architecture, Data Access
★ 4.4 (7) · Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: API Gateway, Cloud API, Application Programming Interface (API), Capacity Management, Kubernetes, Istio, Google Cloud Platform, Application Security, Scalability, Hybrid Cloud Computing, Security Controls, Apache Cassandra, Proxy Servers, Data Security, Application Deployment, Role-Based Access Control (RBAC), Public Key Infrastructure, YAML, Debugging
★ 4.5 (17) · Beginner · 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: Rust (Programming Language), Data Structures, Code Reusability, Memory Management, Package and Software Management, Algorithms, Software Testing
★ 3.8 (9) · Intermediate · Course · 1 - 3 Months