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.

Princeton University
Skills you'll gain: Graph Theory, Data Structures, Algorithms, Theoretical Computer Science, Operations Research, Computer Programming, Java Programming, Java
★ 4.9 (2K) · Intermediate · Course · 3 - 6 Months

DeepLearning.AI
Skills you'll gain: Multimodal Prompts, Gemini, Prompt Engineering, Google Gemini, Prompt Patterns, LLM Application, Tool Calling, Large Language Modeling, Token Optimization, Application Programming Interface (API), Image Analysis
★ 4.8 (32) · Beginner · Project · Less Than 2 Hours

Princeton University
Skills you'll gain: Blockchain, Cryptography, Cryptographic Protocols, Encryption, Payment Systems, FinTech, Public Key Cryptography Standards (PKCS), Key Management, Application Security, Digital Assets, Network Protocols, Transaction Processing, Data Storage, Process Analysis, Distributed Computing, Emerging Technologies, Scripting, Application Specific Integrated Circuits, Financial Policy, Financial Regulation
★ 4.6 (3.1K) · Mixed · Course · 1 - 3 Months

Princeton University
Skills you'll gain: Microarchitecture, Computer Architecture, Memory Management, Hardware Architecture, Computer Systems, Systems Architecture, System Design and Implementation, Performance Tuning, Dependency Analysis
★ 4.7 (3.8K) · Advanced · Course · 3 - 6 Months

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
★ 4.7 (512) · Mixed · Course · 1 - 4 Weeks

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

Goldman Sachs
Skills you'll gain: Market Opportunities, Business Planning, Feasibility Studies, Growth Strategies, Business Development, Business Strategy, Strategic Thinking, Entrepreneurship, Proposal Development, Business Analytics, Goal Setting, Peer Review, Professional Networking
★ 4.8 (1.1K) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Email Marketing, Direct Marketing, Campaign Management, Personalized Campaigns, Campaign Planning, Digital Marketing Tools, Marketing, Digital Marketing, Target Audience, Registration, Design, Business
★ 4.5 (385) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Budgeting, Microsoft Excel, Budget Management, Excel Formulas, Spreadsheet Software, Financial Data, Microsoft Office
★ 4.5 (636) · Intermediate · Guided Project · Less Than 2 Hours

Microsoft
Skills you'll gain: Prompt Engineering, Excel Formulas, Microsoft Copilot, Microsoft Excel, Data Visualization, Data Analysis, Data Entry, Data Analysis Software, Microsoft Office, Spreadsheet Software, Data Manipulation, User Interface (UI)
★ 4.3 (365) · Beginner · Course · 1 - 3 Months

Universiteit Leiden
Skills you'll gain: Law, Regulation, and Compliance, Legal Proceedings, International Relations, Child Welfare, Ethical Standards And Conduct, Regulation and Legal Compliance, Case Law, Journalism, Case Studies
★ 4.8 (2K) · Beginner · Course · 1 - 3 Months

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