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.

Coursera
Skills you'll gain: Database Management, Relational Databases, MySQL, PHP (Scripting Language), SQL, Databases, Object Oriented Programming (OOP), Web Development, Full-Stack Web Development, Hypertext Markup Language (HTML), Back-End Web Development
Intermediate · Guided Project · Less Than 2 Hours

Rice University
Skills you'll gain: Business Economics, Market Dynamics, Economics, Game Theory, Supply And Demand, Operating Cost, Cost Benefit Analysis, Market Analysis, Consumer Behaviour, Policty Analysis, Research, and Development, Decision Making
Beginner · Course · 1 - 3 Months

Universiteit Leiden
Skills you'll gain: Predictive Analytics, Predictive Modeling, Model Evaluation, R Programming, Preventative Care, Health Informatics, Statistical Modeling, Sample Size Determination, Statistical Inference, Regression Analysis, Precision Medicine, Supervised Learning, Data Preprocessing
Intermediate · Course · 1 - 3 Months

The University of Sydney
Skills you'll gain: Advanced Mathematics, Integral Calculus, Calculus, Mathematical Theory & Analysis, Differential Equations, Applied Mathematics, Engineering Calculations, Mathematical Modeling, Linear Algebra, Physics, Derivatives
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Storytelling, Trustworthiness, Personal Integrity, Compassion, Ethical Standards And Conduct, Optimism, Aesthetics, Positivity, Growth Mindedness, Resilience, Art History, Liberal Arts, Performing Arts, Teaching, Community Development, Creativity, Self-Awareness, Discussion Facilitation, Music, Leadership
Beginner · Specialization · 3 - 6 Months

LearnKartS
Skills you'll gain: Java Programming, Object Oriented Programming (OOP), Java, Programming Principles, Computer Programming, Application Development, Program Development, Software Design Patterns, Debugging, Unit Testing
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Self-Awareness, Personal Development, Growth Mindedness, Initiative and Leadership, Personal Attributes, Accountability, Leadership, Resilience, Visionary, Goal Setting, Social Impact
Build toward a degree
Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Typography, Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Web Design, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Video Editing, Animations, Timelines, Motion Graphics, Post-Production, Video Production, Editing, Configuration Management, Data Import/Export, Color Matching, File Management, Typography
Mixed · Course · 1 - 3 Months

Rice University
Skills you'll gain: Ancient History, Timelines, Social Impact, Social Justice, Anthropology, Scientific Methods, World History, Social Sciences, Art History, Sustainable Development, Peer Review, Environment, Case Studies, General Science and Research, Environmental Science, Community Development, Investigation, Climate Change Programs, Spatial Analysis, Data Analysis
Beginner · Specialization · 3 - 6 Months

Whizlabs
Skills you'll gain: Data Collection, AWS SageMaker, Feature Engineering, Data Preprocessing, Amazon Web Services, Data Migration, Data Cleansing, Jupyter, Dimensionality Reduction, Machine Learning
Beginner · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Clinical Leadership, Nursing Administration, Health Informatics, Health Policy, Nursing, Health Care Administration, Informatics, Nurse Education, Health Technology, Electronic Medical Record System
Beginner · Course · 1 - 3 Months