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.

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Apache Spark, Scala Programming, Big Data, Data Manipulation, Distributed Computing, Data Processing, Performance Tuning, SQL, Data Persistence, Data Analysis, Programming Principles
Intermediate · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Intellectual Property, Research, Research Methodologies, Personal Development, Research Design, Research and Design, Curiosity, Science and Research, Problem Solving, Persistence, Persuasive Communication, Time Management, Student Engagement, Goal Setting, Journals, Communication, Ethical Standards And Conduct, Strategic Thinking, Decision Making, Safety and Security
Beginner · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: React.js, Responsive Web Design, Front-End Web Development, Bootstrap (Front-End Framework), JavaScript Frameworks, UI Components, Javascript, HTML and CSS, Web Applications, Event-Driven Programming, Web Development, User Interface (UI)
Intermediate · Course · 1 - 4 Weeks
Yonsei University
Skills you'll gain: Capital Budgeting, Financial Statement Analysis, Business Valuation, Strategic Decision-Making, Financial Analysis, Entrepreneurial Finance, Financial Forecasting, Financial Management, Financial Modeling, Entrepreneurship, Market Analysis, Cash Flows, Competitive Analysis, Business Research, Company, Product, and Service Knowledge, Business Analysis
Beginner · Course · 1 - 3 Months

Skills you'll gain: Windows PowerShell, Scripting, Microsoft Windows, Scripting Languages, Command-Line Interface, IT Automation
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: DeepSeek API, Deepseek, AI Workflows, Agentic Workflows, AI Enablement, Retrieval-Augmented Generation, Embeddings, Program Development, Model Deployment
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Neurology, Telehealth, Patient Evaluation, Teamwork, Patient Communication, Collaboration, Patient Education And Counseling, Health Technology, Vital Signs, Health Assessment, Patient Preparation, Clinical Assessment, Patient-centered Care, Patient Treatment, Primary Care, Health Care, Health Systems, Telecommunications, Care Management, Communication
Beginner · Specialization · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Health Assessment, Chemistry, Risk Analysis, Sustainable Engineering, Personal Care, Environmental Engineering, Product Lifecycle Management, Environmental Regulations, Environmental Science, Child Health
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Test Automation, Software Testing, Test Script Development, Test Data, Test Tools, Browser Compatibility, Test Case, Java, Automation, Cascading Style Sheets (CSS), Debugging
Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Prompt Engineering, Large Language Modeling, Generative AI, Artificial Intelligence, Responsible AI, Visualization (Computer Graphics)
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Sustainable Design, Sustainable Technologies, Sustainable Engineering, Sustainable Business, Business Leadership, Waste Minimization, Product Design, Sustainable Development, Environmental Engineering, Product Lifecycle Management, Environment and Resource Management, Process Analysis, Materials science
Build toward a degree
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Statistical Modeling, Exploratory Data Analysis, R Programming, Predictive Modeling, Statistical Hypothesis Testing, Tidyverse (R Package), Data Analysis, Data Modeling, Regression Analysis, Data Science, Classification And Regression Tree (CART), Statistical Inference, Statistical Analysis, Rmarkdown, Data Preprocessing, Statistical Methods, Model Evaluation, Machine Learning
Mixed · Course · 1 - 3 Months