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.

Universiteit Leiden
Skills you'll gain: Law, Regulation, and Compliance, Legal Proceedings, International Relations, Child Welfare, Ethical Standards And Conduct, Journalism, Case Studies
Beginner · Course · 1 - 3 Months

Princeton University
Skills you'll gain: Microarchitecture, Computer Architecture, Memory Management, Hardware Architecture, Computer Engineering, Systems Architecture, Distributed Computing, Performance Tuning
Advanced · Course · 3 - 6 Months

Princeton University
Skills you'll gain: Graph Theory, Data Structures, Algorithms, Theoretical Computer Science, Operations Research, Computer Programming, Java Programming, Java
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Education Software and Technology, Virtual Environment, Teaching, Collaborative Software, Data Sharing, Google Workspace
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Cash Flow Forecasting, Financial Forecasting, Cash Flows, Financial Analysis, Financial Data, Business Planning, Entrepreneurship, Forecasting, Financial Planning, Financial Management, Finance, Business Strategy, Strategic Decision-Making, Strategic Planning
Mixed · Course · 1 - 4 Weeks

Princeton University
Skills you'll gain: Programming Principles, Computer Programming, Object Oriented Design, Object Oriented Programming (OOP), Performance Tuning, Data Structures, Code Reusability, Other Programming Languages, Java Programming, Java, Program Development, Computational Thinking, Computer Science, Algorithms, Theoretical Computer Science, Animations
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Collaborative Software, Google Workspace, Gmail, Telecommuting, File Management
Beginner · Guided Project · Less Than 2 Hours
University of Pennsylvania
Skills you'll gain: Aesthetics, Liberal Arts, Cultural Responsiveness, Storytelling, Diversity Awareness, Oral Expression
Beginner · Course · 3 - 6 Months

Skills you'll gain: Email Marketing, Direct Marketing, Campaign Management, Digital Marketing Tools, Marketing, Digital Marketing, Target Audience, Registration, Driving engagement, Design, Business
Beginner · Guided Project · Less Than 2 Hours

University of California, Irvine
Skills you'll gain: Grammar, Writing, English Language, Literacy
Mixed · Course · 1 - 4 Weeks

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

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