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: Web Presence, Content Management Systems, Web Design, Web Design and Development, No-Code Development, Web Development, User Accounts, Graphic Design
★ 4.7 (12) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Google Ads, Advertising Campaigns, Search Engine Marketing, Campaign Management, Online Advertising, Digital Advertising, Registration, Marketing, Advertising, Digital Marketing
★ 4 (8) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Unix Shell, Unix Commands, z/OS, Shell Script, Unix, File Systems, Job Control Language (JCL), Operating Systems, Command-Line Interface, OS Process Management, File Management, Mainframe Computing, Debugging, Identity and Access Management
★ 4.9 (13) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Color Matching, Editing
Beginner · Course · 1 - 4 Weeks
University of Colorado Boulder
Skills you'll gain: Engineering Analysis, Mechanics, Finite Element Methods, Differential Equations, Applied Mathematics, Mathematical Modeling
★ 4.8 (12) · Advanced · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Intrusion Detection and Prevention, Model Evaluation, Incident Response, Threat Detection, Computer Security Incident Management, Cyber Threat Intelligence, Distributed Denial-Of-Service (DDoS) Attacks, Event Monitoring, Cybersecurity, Incident Management, Cyber Security Strategy, Threat Management, Model Training, Anomaly Detection, Continuous Monitoring, Cyber Security Policies, Security Management, System Monitoring, Network Analysis, Data Analysis
★ 4.8 (9) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: AWS Identity and Access Management (IAM), Amazon Web Services, Amazon S3, Amazon Elastic Compute Cloud, Cloud-Native Computing, User Provisioning, Virtual Networking, User Accounts, Cloud Deployment, Role-Based Access Control (RBAC), Virtual Private Networks (VPN), Security Controls, Multi-Factor Authentication, Scalability
★ 4.6 (8) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: SQL, PostgreSQL, Query Languages, Database Management Systems, Database Management
★ 4.9 (12) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: MLOps (Machine Learning Operations), Data Preprocessing, AWS SageMaker, Model Evaluation, Model Deployment, Artificial Intelligence and Machine Learning (AI/ML), Amazon Web Services, Model Training, Predictive Modeling, Machine Learning Methods, Applied Machine Learning, Data Processing, Machine Learning, Supervised Learning, Machine Learning Algorithms, Unsupervised Learning, Classification Algorithms
★ 4.3 (7) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Query Languages, Software Installation, Performance Tuning, Distributed Computing, Scripting, Data Modeling, Application Programming Interface (API), Cloud Deployment
★ 3.6 (14) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Organizational Change, Change Management, Business Transformation, Organizational Development, Organizational Leadership, Leadership Studies, Organizational Strategy, Business Leadership, Strategic Leadership, Organizational Structure, Drive Engagement, Leadership Development, Cross-Functional Collaboration, Stakeholder Engagement, Employee Engagement, Driving engagement, Team Building, Industrial and Organizational Psychology, Lifelong Learning
★ 4.4 (21) · Beginner · Course · 1 - 4 Weeks

Peking University
Skills you'll gain: Nursing, Science and Research, Nurse Education, General Science and Research, Clinical Research, Scientific Methods, Nursing and Patient Care, Clinical Research Ethics, Medical Science and Research
★ 4.8 (6) · Intermediate · Course · 1 - 3 Months