First aid courses can help you learn how to recognize common emergencies, understand basic response principles, and communicate effectively with trained professionals. You can build skills in identifying signs of illness or injury, assessing situations safely, and applying general preparedness concepts. Many courses introduce frameworks, scenario-based learning, and tools that support building confidence in responding to unexpected events.

University of Colorado Boulder
Skills you'll gain: Physics, Physical Science, Materials science, Mathematical Modeling, Applied Mathematics
★ 4.8 (11) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Unit Testing, Test Case, Application Deployment, Responsive Web Design, Continuous Deployment, Maintainability, LinkedIn, Cascading Style Sheets (CSS), Front-End Web Development, Software Testing, Test Script Development, HTML and CSS, Development Testing, Hypertext Markup Language (HTML), Interviewing Skills, Web Development Tools, Debugging, Web Development, Application Development, Software Documentation
★ 4.6 (21) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: User Research, UI/UX Research, User Interface and User Experience (UI/UX) Design, User Interface (UI), User Experience, UI/UX Strategy, Persona (User Experience), User Centered Design, Usability, User Flows, User Interface (UI) Design, Responsive Web Design, Graphic and Visual Design, Interaction Design, Interactive Design, Layout Design, Design Elements And Principles, Typography, Prototyping
★ 4.1 (14) · Beginner · Course · 1 - 4 Weeks

Rutgers the State University of New Jersey
Skills you'll gain: Supplier Quality Management, Procurement, Strategic Sourcing, Supplier Risk Management, Purchasing, Supply Management, Supplier Management, Risk Management, Business Risk Management, Supply Chain, Quality Management, Supply Chain Management, Risk Analysis, Cost Reduction, Cost Benefit Analysis, Cost Management
★ 4.6 (12) · Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: JSON, Restful API, API Design, Web Applications, Application Programming Interface (API), Responsive Web Design, Cascading Style Sheets (CSS), Dashboard Creation, Event-Driven Programming, HTML and CSS, Javascript, Wireframing, Web Servers, Web Development, Real Time Data, Game Design, Hypertext Markup Language (HTML), Servers, Software Development
★ 4.8 (19) · Intermediate · Specialization · 1 - 4 Weeks

Skills you'll gain: Blockchain, Application Deployment, Integrated Development Environments, Development Testing, Web Development Tools, Program Development, Cryptographic Protocols, Javascript, Scripting
★ 4 (6) · Beginner · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Sustainable Design, Sustainable Technologies, Sustainable Engineering, Sustainable Business, Strategic Leadership, Product Engineering, Organizational Leadership, Business Leadership, Waste Minimization, Product Design, Sustainable Development, Product Lifecycle Management, Corporate Sustainability, Pollution Prevention, Environment and Resource Management, Environmental Issue, Environmental Regulations, Process Analysis, Material Handling, Consumer Behaviour
★ 4.6 (17) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), Test Automation, Software Testing, Test Script Development, Test Data, Browser Compatibility, Java, Cascading Style Sheets (CSS), Data Import/Export, Debugging, Maintainability
★ 4.4 (14) · Intermediate · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Data Storytelling, Data Presentation, Feature Engineering, Data Visualization Software, Unsupervised Learning, SQL, Data Analysis, Model Evaluation, Seaborn, Data Visualization, Tableau Software, Predictive Modeling, Exploratory Data Analysis, Predictive Analytics, Analytics, Presentations, Database Management, Advanced Analytics, Data Science, Machine Learning
★ 4.5 (6) · Beginner · Specialization · 1 - 3 Months

Logical Operations
Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Data Structures, File I/O, Debugging, Data Processing, Application Development, Code Reusability, Maintainability, File Management, File Systems, Programming Principles, Computer Programming, Python Programming, System Configuration, Operating Systems, Software Development, Virtual Machines, Cross Platform Development
★ 4.6 (14) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Agile Methodology, Product Management, Sprint Planning, Sprint Retrospectives, Backlogs
★ 4.6 (16) · Advanced · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Creativity, Ideation, Culture, Liberal Arts, Decision Intelligence, Psychology, Social Sciences, Science and Research, Ethical Standards And Conduct, Anthropology, Governance
★ 4.9 (10) · Mixed · Course · 1 - 4 Weeks