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.

Skills you'll gain: Server Side, Web Applications, Javascript, JSON, Node.JS, PHP (Scripting Language), Back-End Web Development, Application Programming Interface (API), Servers, HTML and CSS, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML)
Beginner · Course · 1 - 4 Weeks

Northeastern University
Skills you'll gain: Web Design and Development, Responsive Web Design, HTML and CSS, Web Design, Web Content Accessibility Guidelines, Front-End Web Development, Web Development, Cascading Style Sheets (CSS), Web Development Tools, Hypertext Markup Language (HTML), React.js, User Interface (UI), JavaScript Frameworks, Web Applications, Javascript, Web Servers, Server Side, Software Development Tools, Semantic Web, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Java Programming, File I/O, Object Oriented Design, Java, Development Environment, Computer Programming, Programming Principles, Data Persistence, Integrated Development Environments, Memory Management, Debugging, File Management, Application Development, Data Structures
Beginner · Course · 1 - 3 Months

Skills you'll gain: Internet Of Things, Embedded Software, Embedded Systems, Mobile Development, Android Development, Emerging Technologies, Cloud Services, Application Design, Wireless Networks, Hardware Architecture, Cloud Computing, Local Area Networks, General Networking, Network Protocols, Communication Systems, Computer Hardware
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Content Creation, Social Media Content, Social Media, Graphic Design, Marketing Design, Data Visualization, Shared Media, Content Marketing, User Accounts, Digital Marketing
Beginner · Guided Project · Less Than 2 Hours

Logical Operations
Skills you'll gain: Presentations, Microsoft PowerPoint, Editing, Microsoft 365, Proofreading, Productivity Software, Diagram Design, Graphics Software, Multimedia, Graphic and Visual Design, Data Visualization, User Interface (UI)
Mixed · Course · 1 - 3 Months

Skills you'll gain: AWS CloudFormation, Amazon CloudWatch, Version Control, Infrastructure as Code (IaC), Serverless Computing, Git (Version Control System), Devops Tools, Continuous Deployment, CI/CD, Scalability, Amazon Web Services, DevOps, Software Versioning, Cloud Deployment, Cloud Computing Architecture, Amazon Elastic Compute Cloud, Application Deployment, Cloud Infrastructure, Event Monitoring, Network Architecture
Beginner · Course · 1 - 4 Weeks

University of Miami
Skills you'll gain: Materials science, Manufacturing Processes, Engineering, Biomedical Engineering, Chemical Engineering, Biological Engineering, Production Process, Biotechnology
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, TypeScript, Restful API, Back-End Web Development, Object-Relational Mapping, Web Development, Secure Coding, Server Side, Software Development Tools, Authentications, OAuth, Web Applications, Web Services, Unit Testing, Data Validation, Full-Stack Web Development, Authorization (Computing), Development Environment, Javascript, E-Commerce
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Microsoft Azure, Cloud Security, Data Governance, User Provisioning, Data Management, Data Security, Azure Active Directory, Cloud Development, Cloud Applications, Application Security, Identity and Access Management, Key Management, Security Controls, Encryption
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Matplotlib, Plot (Graphics), Statistical Visualization, Data Visualization Software, Interactive Data Visualization, Data Presentation, Scatter Plots, Jupyter, Histogram, Box Plots, Graphing, Computer Programming, Development Environment, Animations
Mixed · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Ajax, Angular, Web Components, JavaScript Frameworks, Web Applications, Javascript, Model View Controller, Event-Driven Programming, Application Frameworks, UI Components, HTML and CSS, Code Reusability, User Interface (UI), Maintainability
Intermediate · Course · 1 - 4 Weeks