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: Back-End Web Development, Django (Web Framework), Version Control, Git (Version Control System), API Testing, Web Development, Authentications, API Design, Application Development, Application Programming Interface (API), Restful API, Unit Testing, Test Tools, Database Development, MySQL, User Accounts, Web Applications, Databases
★ 4.6 (187) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Persona Development, Prospecting and Qualification, Target Audience, Facebook, Target Market, Earned Media, Social Media Marketing, Social Media Content, Web Presence, Social Media, Business Marketing, Drive Engagement, Marketing, Online Advertising, Content Creation
★ 4.6 (760) · Intermediate · Guided Project · Less Than 2 Hours

Digital Marketing Institute
Skills you'll gain: Social Media Marketing, Social Media, Social Media Content, Social Media Strategy, Social Media Management, Social Media Analytics, Social Media Campaigns, Content Marketing, Instagram, Digital Media Strategy, Digital Advertising, Facebook, Digital Marketing, Paid media, Content Creation, Content Strategy, Earned Media, Customer Engagement
★ 4.4 (121) · Beginner · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Computer Vision, Image Analysis, Color Theory, Digital Signal Processing, Mathematical Software, Applied Mathematics, Artificial Intelligence, Computer Programming, Matlab, Calculus, Probability & Statistics
★ 4.2 (1.8K) · Intermediate · Course · 1 - 4 Weeks

MathWorks
Skills you'll gain: Image Analysis, Image Quality, Matlab, Computer Vision, Geospatial Information and Technology, Environmental Monitoring, Quantitative Research, Mathematical Software, Data Import/Export, File Management
★ 4.8 (214) · Beginner · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Data Modeling, Data Infrastructure, Data Store, Data Architecture, Big Data, Data Management, Database Management Systems, Real Time Data, NoSQL, Database Design, Database Management, Database Software, Data Processing, Apache Hadoop, Query Languages, Relational Databases, Data Structures, Virtual Environment
★ 4.4 (3K) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Microsoft Copilot, Responsible AI, Data Ethics, Microsoft 365, Information Management, Generative AI, Productivity Software, Microsoft Word, Microsoft Excel, Writing, Editing
★ 4.6 (65) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Microsoft Excel, Spreadsheet Software
★ 4 (76) · Beginner · Guided Project · Less Than 2 Hours

Universiteit Leiden
Skills you'll gain: World History, Cultural Diversity, Political Sciences, European History, Social Studies, Economic Development, Social Sciences, Economics, Sociology, Liberal Arts, Research, Science and Research
★ 4.8 (441) · Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Architectural Design, Sustainable Development, Building Codes, Community Development, Land Development, Public Works, Sustainable Architecture, Land Management, Building Design, Sustainable Design, Sustainable Technologies, Economic Development, Construction, Environmental Issue, Climate Change Mitigation, Environmental Policy, Policy Development, Health Equity, Policy Analysis, Case Studies
★ 4.7 (241) · Intermediate · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Verbal Communication Skills, Oral Expression, Presentations, Public Speaking, Lecturing, Non-Verbal Communication, Peer Review, Constructive Feedback, Communication Strategies, Organizational Skills, Planning
★ 4.5 (399) · Intermediate · Course · 1 - 4 Weeks

McMaster University
Skills you'll gain: Experimentation, Scientific Visualization, Plot (Graphics), Data Visualization, Predictive Modeling, Pareto Chart, Predictive Analytics, Model Optimization, Regression Analysis, A/B Testing, Statistical Modeling, Process Optimization, Statistical Software, Statistical Methods, Analysis, Data Analysis Software, Mathematical Modeling, R Programming, Data Analysis, Statistical Analysis
★ 4.9 (938) · Intermediate · Course · 1 - 3 Months