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.

Lund University
Skills you'll gain: Editing, Proofreading, Writing and Editing, Writing, English Language
★ 4.7 (839) · Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Collaborative Software, Google Workspace, Gmail, Telecommuting, File Management
★ 4.7 (419) · Beginner · Guided Project · Less Than 2 Hours

Case Western Reserve University
Skills you'll gain: Trial Preparation, Court Systems, Legal Proceedings, Legal Hearings, International Relations, Legal Strategy, Diplomacy, Law, Regulation, and Compliance, Public Safety and National Security, Legal Writing, Interactive Learning, Case Studies, Student Engagement
★ 4.8 (4K) · Mixed · Course · 1 - 3 Months

Princeton University
Skills you'll gain: Combinatorics, Algorithms, Theoretical Computer Science, Mathematical Theory & Analysis, Data Structures, Advanced Mathematics, Mathematical Modeling, Probability, Applied Mathematics, Calculus
★ 4.4 (1.1K) · Advanced · Course · 1 - 3 Months

Skills you'll gain: Microsoft Excel, Spreadsheet Software, Data-Driven Decision-Making, Productivity Software
★ 4.7 (513) · Intermediate · Guided Project · Less Than 2 Hours

Princeton University
Skills you'll gain: Programming Principles, Computer Programming, Object Oriented Design, Object Oriented Programming (OOP), Data Structures, Code Reusability, Java Programming, Java, Program Development, File I/O, Computational Thinking, Computer Science, Algorithms, Theoretical Computer Science, Animations, Simulations
★ 4.7 (1.4K) · Beginner · Course · 1 - 3 Months

Princeton University
Skills you'll gain: Data Structures, Algorithms, Graph Theory, Java, Performance Testing, Java Programming, Computational Thinking, Memory Management, Spatial Data Analysis
★ 4.9 (12K) · Intermediate · Course · 3 - 6 Months

Skills you'll gain: Classroom Management, Education Software and Technology, Real Time Data, Data Management, Record Keeping
★ 4.6 (155) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Google Sheets, Collaborative Software, Productivity Software, Organizational Skills, Spreadsheet Software, Project Management Software, Data Management, Project Management, Data Visualization, Presentations, Business
★ 4.6 (295) · Beginner · Guided Project · Less Than 2 Hours

Columbia University
Skills you'll gain: Financial Market, Securities (Finance), Derivatives, Mathematical Modeling, Applied Mathematics, Capital Markets, Futures Exchange, Finance, Financial Modeling, Risk Modeling, Probability, Risk Management, Probability Distribution, Model Optimization
★ 4.7 (323) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Model Deployment, Decision Tree Learning, Applied Machine Learning, Predictive Modeling, Machine Learning Software, Microsoft Azure, No-Code Development, Machine Learning, Data Preprocessing, Predictive Analytics, Model Training, Cloud Deployment, Feature Engineering, Machine Learning Algorithms, Model Evaluation, Data Science, Data Analysis, Classification Algorithms
★ 4.5 (832) · Beginner · Guided Project · Less Than 2 Hours

Vanderbilt University
Skills you'll gain: File I/O, Code Reusability, Matlab, Computer Programming Tools, Functional Design, Computer Programming, Programming Principles, Program Development, Debugging, Mathematical Software, Development Environment, Computer Science, User Interface (UI), File Management, C (Programming Language), Data Structures, Computational Logic, Linear Algebra, Engineering Calculations, Problem Solving
★ 4.8 (18K) · Beginner · Course · 1 - 3 Months