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: Cascading Style Sheets (CSS), Responsive Web Design, Browser Compatibility, Hypertext Markup Language (HTML), HTML and CSS, Web Development Tools, Web Design, Web Development
★ 4.7 (63) · Intermediate · Guided Project · Less Than 2 Hours

University of London
Skills you'll gain: Linux, Linux Commands, Computer Systems, Command-Line Interface, Cybersecurity, Computer Architecture, Network Security, Cyber Attacks, Vulnerability Assessments, Hardware Architecture, Information Systems Security, Application Security, Threat Detection, Authorization (Computing), Network Protocols, Virtual Private Networks (VPN), Operating Systems, VPN Clients, Systems Architecture, Authentications
★ 4.8 (45) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Image Analysis, Event-Driven Programming, Scalability, Digital Signal Processing, Distributed Computing, C++ (Programming Language), Program Development, Performance Tuning, Data Structures, Memory Management, Algorithms
★ 3.4 (30) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Microsoft Office, Communication, Business Communication, Graphic Design
★ 4.6 (43) · Intermediate · Guided Project · Less Than 2 Hours

Edureka
Skills you'll gain: Vibe coding, Model Context Protocol, Prompt Engineering, Claude Code, Responsible AI, Prompt Patterns, Prompt Engineering Tools, Anthropic Claude, LLM Application, AI Orchestration, Authentications, Agentic Workflows, AI Integrations, AI Workflows, AI Enablement, Generative AI Agents, Generative AI, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Agentic systems
★ 4.5 (15) · Intermediate · Specialization · 3 - 6 Months

Illinois Tech
Skills you'll gain: Digital Transformation, Business Transformation, Operational Excellence, Data Strategy, Innovation, Operational Efficiency, Customer experience strategy (CX), Technology Strategies, Plan Execution, Strategic Leadership, Customer Engagement, Data-Driven Decision-Making, Business Strategies, Business Leadership, Organizational Strategy, Risk Management, Change Management, Computing Platforms, Emerging Technologies, Governance
★ 4.6 (51) · Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Telehealth, Teamwork, Patient Communication, Collaboration, Medical Imaging, Patient Evaluation, Clinical Assessment, Health Technology, Vital Signs, Health Assessment, Patient Preparation, Patient Coordination, Patient Education And Counseling, Patient-centered Care, Patient Treatment, Patient Flow, Health Care, Telecommunications, Care Management, Communication
★ 4.9 (58) · Beginner · Specialization · 1 - 4 Weeks

Skills you'll gain: Intrusion Detection and Prevention, Continuous Monitoring, Threat Management, Firewall, Incident Response, Network Security, Threat Detection, Network Monitoring, System Monitoring, Event Monitoring, Infrastructure Security, Cybersecurity, Anomaly Detection
★ 4.4 (48) · Advanced · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Data Quality, Data Collection, Data Validation, Data Analysis, Data Processing, Data Access, Statistical Analysis
★ 4.6 (52) · Beginner · Course · 1 - 4 Weeks

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

Peking University
Skills you'll gain: Music History, World Music, Classical Music, Music, Music Theory, Performing Arts, Musical Composition, Art History
★ 4.5 (53) · Beginner · Course · 1 - 3 Months

Skills you'll gain: File I/O, Data Import/Export, Java Programming, Java, Programming Principles, Computer Programming, Data Structures, File Systems, File Management, Data Store, Computer Science
★ 4.6 (45) · Beginner · Course · 1 - 4 Weeks