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.

Fred Hutchinson Cancer Center
Skills you'll gain: Debugging, Responsible AI, Data Ethics, Maintainability, ChatGPT, LLM Application, AI literacy, Computer Programming Tools, Bioinformatics, Artificial Intelligence, Prompt Engineering, Large Language Modeling, Generative AI, Information Privacy, Data Science
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: C++ (Programming Language), Algorithms, Performance Tuning
★ 4.5 (6) · Advanced · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Memory Management, C++ (Programming Language)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Structures, Java Programming, Java, Theoretical Computer Science, Programming Principles, Algorithms
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Reinforcement Learning, Machine Learning Methods, Machine Learning, Markov Model, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning Algorithms, Decision Intelligence, Statistical Machine Learning, Sampling (Statistics), Operations Research, Theoretical Computer Science, Probability, Model Optimization, Statistical Methods, Algorithms, Probability Distribution, Applied Mathematics
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cloud Deployment, Cloud Development, Application Deployment, Microsoft Azure, JSON, Cloud Applications, Serverless Computing, Application Programming Interface (API), Cloud Computing, C# (Programming Language), Restful API, Web Services, Cloud Storage
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Canva (Software), Photo Editing, Instagram, Social Media Content, Social Media, Content Creation, Social Media Marketing, Photography, User Accounts, Dashboard, Graphic Design
Beginner · Guided Project · Less Than 2 Hours
Skills you'll gain: Matplotlib, Plot (Graphics), Data Visualization Software, Statistical Visualization, Data Visualization, Jupyter, Interactive Data Visualization, Scatter Plots, Histogram, Box Plots, Descriptive Statistics, Data Presentation, Animations, Python Programming
★ 3.3 (12) · Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Responsible AI, AI Product Strategy, AI literacy, Artificial Intelligence, LLM Application, AI Workflows, Generative AI Agents, Agentic Workflows, Prompt Engineering, Generative AI, AI Orchestration, AI Integrations, Large Language Modeling, Model Evaluation, Open Source Technology, Model Deployment, System Requirements, Cloud Hosting, Computer Hardware
Intermediate · Course · 1 - 3 Months

Skills you'll gain: PostgreSQL, Data Maintenance, Database Administration, Database Architecture and Administration, SQL, Disaster Recovery, Secure Coding, Database Management, Relational Databases, Database Management Systems, Query Languages, Security Controls, Data Access, Data Security, Application Security, Role-Based Access Control (RBAC), Threat Management, Threat Detection, Encryption
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Swift Programming, Memory Management, Apple iOS, iOS Development, Apple Xcode, Code Reusability, Mobile Development, Cross Platform Development, Functional Design, Maintainability, Performance Tuning, Object Oriented Programming (OOP)
Advanced · Course · 3 - 6 Months

Skills you'll gain: Test Script Development, Test Automation, Test Tools, Verification And Validation, Software Testing, Scenario Testing, Web Development Tools, Test Case, Development Testing, Data Validation, Debugging
Intermediate · Guided Project · Less Than 2 Hours