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.

Columbia University
Skills you'll gain: Portfolio Management, Investment Management, Asset Management, Estimation, Market Liquidity, Risk Management, Financial Market, Financial Modeling, Equities, Securities Trading, Market Dynamics, Financial Analysis, Statistical Analysis
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Node.JS, Restful API, Database Design, Database Application, Databases, NoSQL, MongoDB, Back-End Web Development, Performance Tuning, API Design, Cloud Applications, Authentications, Server Side, Middleware, Scalability, Application Deployment, Web Applications, Web Development, Debugging, Javascript
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Verification And Validation, Theoretical Computer Science, System Testing, System Software, Systems Design, Software Architecture, Embedded Systems
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: React.js, JavaScript Frameworks, Data Persistence, Javascript, Context Management, Web Development
Intermediate · Guided Project · Less Than 2 Hours

Yale University
Skills you'll gain: Environmental Science, Environment, Anthropology, Sustainable Development, Teaching, Liberal Arts, Storytelling, Community Development, Biology, Systems Thinking, Cultural Diversity, Physics
Mixed · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Cloud Computing, Technical Support, Resource Management, Cost Management
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Data Import/Export, Model Evaluation, No-Code Development, Exploratory Data Analysis, Predictive Modeling, Applied Machine Learning, Data Pipelines, Data Manipulation, Data Preprocessing, Machine Learning, Time Series Analysis and Forecasting
Beginner · Guided Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: Network Architecture, Emerging Technologies, Internet Of Things, Network Security, Network Protocols, Wireless Networks, Network Performance Management, Network Planning And Design, Network Infrastructure, Communication Systems, General Networking, Mobile Security, Telecommunications, Cybersecurity, Technology Roadmaps, Artificial Intelligence and Machine Learning (AI/ML), Automation, Cloud Computing, Real Time Data
Intermediate · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: SQL, Data Manipulation, Relational Databases, Database Design, Databases, Data Integrity, Database Management Systems, Debugging, Data Management
Intermediate · Guided Project · Less Than 2 Hours

LearnKartS
Skills you'll gain: Malware Protection, Network Security, Cybersecurity, Security Testing, Cyber Attacks, Information Systems Security, Penetration Testing, Intrusion Detection and Prevention, Firewall, Threat Detection, Brute-force attacks, Internet Of Things, Network Analysis
Intermediate · Course · 1 - 4 Weeks
Johns Hopkins University
Skills you'll gain: Injury Prevention, Fire And Life Safety, Electrical Safety, Accident Prevention, Safety Training, Safety Standards, Health And Safety Standards, Working With Children, Risk Analysis
Mixed · Course · 3 - 6 Months

Skills you'll gain: Video Editing, Adobe Premiere, Storytelling, Post-Production, Content Creation, TikTok, Timelines, Color Matching, File Management
Beginner · Guided Project · Less Than 2 Hours