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.

Board Infinity
Skills you'll gain: React Native, Mobile Development, Responsive Web Design, Cross Platform Development, Microservices, User Interface (UI), User Interface and User Experience (UI/UX) Design, DevOps, UI Components, User Interface (UI) Design, UI/UX Strategy, Secure Coding, Development Testing, Mobile Development Tools, Unit Testing, Software Testing, Application Development, Ajax, Authentications, Version Control
★ 4.2 (56) · Intermediate · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Healthcare Ethics, Social Sciences, Culture, Social Studies, Laboratory Research, General Science and Research, Research, Sociology, Social Justice, Ethical Standards And Conduct, Health Care, Food and Beverage, Social Impact, Nutrition and Diet, Advocacy
★ 4.7 (71) · Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Typography, Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, UI Components, Web Design, Web Design and Development, Front-End Web Development, Animations, Mockups, User Interface (UI), User Interface (UI) Design, Web Development, Debugging
★ 4.6 (56) · Intermediate · Specialization · 1 - 3 Months

Universitat de Barcelona
Skills you'll gain: Acute Care, Medical Emergency, Triage, Emergency Medical Services, Emergency Services, Emergency Nursing, Emergency Departments, Urgent Care, Emergency Medicine, Hospital Medicine, Neurology, Care Coordination, Patient Evaluation, Patient Treatment, Health Assessment, Diagnostic Tests, Clinical Assessment
★ 4.8 (123) · Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Hypertext Markup Language (HTML), Web Content Accessibility Guidelines, HTML and CSS, Web Language, Web Design, Semantic Web, Web Development, Cascading Style Sheets (CSS), Web Content, Responsive Web Design, Web Presence, Verification And Validation
★ 4.6 (51) · Mixed · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Large Language Modeling, LLM Application, Prompt Patterns, Prompt Engineering, Microsoft Azure, OpenAI API, Retrieval-Augmented Generation, OpenAI, Model Deployment, Risk Management Framework, MLOps (Machine Learning Operations), Embeddings, Cloud Deployment, Application Deployment, Python Programming
★ 4.2 (53) · Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Continuous Delivery, Test Driven Development (TDD), Unit Testing, Continuous Deployment, Continuous Integration, Test Script Development, Program Development, CI/CD, Agile Methodology, Test Automation, Development Testing, Mockups, Test Case, Agile Software Development, Software Testing, Debugging, Software Development, Python Programming, Version Control, Requirements Analysis
★ 4 (83) · Intermediate · Specialization · 3 - 6 Months

University of Maryland, College Park
Skills you'll gain: Cybersecurity, Cyber Security Strategy, Cyber Governance, Cyber Risk, Security Strategy, Cyber Security Policies, Security Management, Information Privacy, Infrastructure Security, Risk Management, Dependency Analysis
★ 4.8 (53) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Figma (Design Software), UI Components, Typography, Prototyping, Responsive Web Design, User Experience, User Interface and User Experience (UI/UX) Design, Interactive Design, Interaction Design, UI/UX Strategy, User Experience Design, Motion Graphics, Graphic and Visual Design, Layout Design, User Interface (UI) Design, Animations, AI powered creativity, Collaborative Software, Web Content Accessibility Guidelines, AI Workflows
★ 4.5 (34) · Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Embedded Systems, Embedded Software, System Programming, System Design and Implementation, Software Design, OS Process Management, Linux, Systems Analysis, Test Tools, Theoretical Computer Science, Verification And Validation, Algorithms
★ 4.3 (20) · Advanced · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Apache Kafka, Real Time Data, Data Pipelines, Analytics, Distributed Computing, Data Processing, Live Streaming, Systems Architecture, Event-Driven Programming, Development Environment
★ 3.9 (43) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Logical Reasoning, Graph Theory, Model Evaluation
★ 4.4 (44) · Advanced · Course · 1 - 3 Months