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 California, Irvine
Skills you'll gain: Swift Programming, Objective-C (Programming Language), iOS Development, Core Data (Software), Apple iOS, Video Game Development, Game Design, User Interface (UI), Model View Controller, JSON, User Interface (UI) Design, UI Components, Mobile Development, User Interface and User Experience (UI/UX) Design, OAuth, Memory Management, Responsive Web Design, Prototyping, Animation and Game Design, Human Computer Interaction
★ 4.5 (710) · Beginner · Specialization · 3 - 6 Months

LearnKartS
Skills you'll gain: Project Management Institute (PMI) Methodology, Agile Project Management, Project Management, Project Management Life Cycle, Project Coordination, Project Planning, Project Management Office (PMO), Project Controls, Project Scoping, Project Risk Management, Project Implementation, Project Estimation, Project Performance, Team Management, Project Schedules, Project Documentation, Stakeholder Management, Project Closure, Risk Management, Quality Management
★ 4.6 (458) · Intermediate · Specialization · 1 - 3 Months

University of Minnesota
Skills you'll gain: UI/UX Research, User Research, Design Research, User Experience, Persona (User Experience), User Interface and User Experience (UI/UX) Design, Ideation, User Interface (UI), Qualitative Research, User Interface (UI) Design, Surveys, Data Collection, Persona Development, Data Analysis, Interviewing Skills, People Analytics
★ 4.6 (472) · Mixed · Course · 1 - 3 Months

University of Cape Town
Skills you'll gain: Data Import/Export, Box Plots, Jupyter, Statistical Analysis, Data Visualization, Plot (Graphics), Scientific Visualization, Programming Principles, Descriptive Statistics, Data Manipulation, Mathematical Software, Epidemiology, Numerical Analysis, Computer Programming, Statistical Hypothesis Testing, Scripting, Computational Logic, Mathematical Modeling, Package and Software Management
★ 4.4 (439) · Beginner · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Electrical Systems, Power Electronics, Electrical Power, Basic Electrical Systems, HVAC, Engineering Practices, Energy and Utilities, Electric Power Systems, Construction, Semiconductors, Cost Benefit Analysis, Sustainable Technologies, Cost Estimation, Return On Investment, System Configuration, Tax Management
★ 4.7 (869) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Respiration, Respiratory Care, Respiratory Therapy, Pulmonology, Clinical Practices, Patient Evaluation, Airway Management, Capillary, Anatomy, Physiology, Patient Treatment, Immunology, Medical Terminology, Diagnostic Tests, Infectious Diseases
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Excel Macros, Microsoft Excel, Visual Basic (Programming Language), Simulations, User Interface (UI), Automation
★ 4.9 (464) · Advanced · Course · 1 - 3 Months

Skills you'll gain: Autoencoders, Generative AI, Recurrent Neural Networks (RNNs), Convolutional Neural Networks, Reinforcement Learning, Generative Adversarial Networks (GANs), Generative Model Architectures, Artificial Intelligence and Machine Learning (AI/ML), Deep Learning, Unsupervised Learning, Machine Learning Methods, Transfer Learning, Model Optimization, Image Analysis, Artificial Neural Networks, Keras (Neural Network Library), Fine-tuning, Machine Learning, Artificial Intelligence, Computer Vision
★ 4.6 (297) · Intermediate · Course · 1 - 3 Months

Rice University
Skills you'll gain: Basic Electrical Systems, Electrical Engineering, Torque (Physics), electromagnetics, Physics, Electrical Systems, Electronics, Electronic Components, Engineering Calculations, Mechanics, Applied Mathematics, Problem Solving, Scientific Visualization, Calculus, Integral Calculus, Differential Equations, Mathematical Modeling
★ 4.7 (269) · Intermediate · Specialization · 3 - 6 Months

University of Geneva
Skills you'll gain: Precision Medicine, Medical Science and Research, Data Ethics, Healthcare Ethics, Pharmacology, Health Informatics, Bioinformatics, Clinical Research, Biomedical Technology, Primary Care, Biotechnology, Clinical Research Ethics, General Medicine, Oncology, Pharmaceuticals, Health Policy, Pharmacotherapy, Molecular Biology, Diagnostic Tests, Patient Education And Counseling
★ 4.5 (417) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Robotic Process Automation, Automation, Business Process Automation, Software Development Tools, Computing Platforms, Package and Software Management, Development Environment, User Interface (UI), Software Installation, Version Control, Debugging
★ 4.7 (408) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Community Outreach, Social Justice, Discussion Facilitation, Community Organizing, Diversity Awareness, Diversity Training, Advocacy, Social Impact, Oral Expression, Rapport Building, Community Development, Cultural Responsiveness, Interviewing Skills, Cultural Sensitivity, Cultural Diversity, Interpersonal Communications, Sociology, Diversity Equity and Inclusion Initiatives, Intercultural Competence, Culture
★ 4.7 (319) · Beginner · Specialization · 1 - 3 Months