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.

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

Skills you'll gain: Registration, Product Management, Product Planning, Product Lifecycle Management, Product Development
★ 4.8 (61) · Advanced · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Electrical Engineering, electromagnetics, Image Quality, Engineering Calculations, System Requirements, Simulation and Simulation Software, Design Software, Systems Design, System Design and Implementation, Graphical Tools, Applied Mathematics, Physics, Spatial Analysis
★ 4.2 (64) · Advanced · Course · 1 - 3 Months

Indian School of Business
Skills you'll gain: Financial Planning, Tax Planning, Income Tax, Insurance, Financial Management, Investments, Finance, Tax, Financial Market, Loans, Portfolio Management, Income Statement, Equities
★ 4.6 (66) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Agile Methodology, Registration
★ 4.9 (60) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Image Analysis, Computer Vision, Deep Learning, Machine Learning Methods, Matlab, Transfer Learning, Traffic Flow Optimization
★ 4.7 (36) · Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Requirements Analysis, Security Requirements Analysis, Requirements Elicitation, Goal Setting, User Requirements Documents, Unified Modeling Language, Meeting Facilitation, Conflict Management, Discussion Facilitation, Risk Management Framework, Negotiation, Security Awareness
★ 4.7 (66) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Timelines, Organizational Skills, Project Schedules, Scheduling, Project Coordination, Time Management, Project Management Software, Project Management, Delegation Skills, Workflow Management, Data Visualization, Team Management, Dependency Analysis
★ 4.7 (38) · Beginner · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: TypeScript, React.js, Server Side, Javascript, Data Structures, Web Development, Middleware, Scalability, Web Design, Computer Programming, Maintainability
★ 4.6 (58) · Intermediate · Course · 1 - 4 Weeks

Advancing Women in Tech
Skills you'll gain: Software Architecture, Engineering Management, Goal Setting, Systems Architecture, Systems Design, Technical Management, Software Design, Smart Goals, API Design, System Design and Implementation, Technical Product Management, Cross-Functional Collaboration, Cross-Functional Team Leadership, Management Training And Development, Recruitment, Program Management, Team Performance Management, Software Engineering, Microservices, Employee Retention
★ 4.6 (98) · Beginner · Specialization · 1 - 3 Months

Tecnológico de Monterrey
Skills you'll gain: Customer Engagement, Target Market, Target Audience, Digital Advertising, Digital Analysis, Customer Retention, Customer Relationship Building, Search Engine Optimization, Sales Prospecting, Brand Loyalty, Digital Brand Strategy, Digital Media Strategy, Lead Generation, Prospecting and Qualification, Digital Marketing, Marketing Strategies, Strategic Communication, Customer experience strategy (CX), Digital Marketing Tools, Cash Flows
★ 4.9 (147) · Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Unity Engine, Video Game Development, C# (Programming Language), Game Design, Object Oriented Design, Object Oriented Programming (OOP), Application Design, Software Design, Programming Principles, Application Development
★ 4.8 (68) · Intermediate · Course · 1 - 4 Weeks