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: Cascading Style Sheets (CSS), Program Development, Full-Stack Web Development, Event-Driven Programming
★ 5 (7) · Beginner · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Cloud Storage, Amazon Web Services, Data Storage Technologies, Data Storage, Disaster Recovery, Data Store
★ 4.8 (10) · Beginner · Course · 1 - 4 Weeks

University of Virginia
Skills you'll gain: Model View Controller, Debugging, Responsive Web Design, User Interface (UI), HTML and CSS, Web Design and Development, User Interface and User Experience (UI/UX) Design, User Interface (UI) Design, Design and Product, Vibe coding, Cascading Style Sheets (CSS), Application Frameworks, Hypertext Markup Language (HTML), Program Development, Generative AI
Beginner · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Statistics, Probability & Statistics, Analytics, Exploratory Data Analysis, Estimation, Logistic Regression
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Web Services, Restful API, Apache Maven, Build Tools, Spring Boot, Spring Framework, Gradle, Simple Object Access Protocol (SOAP), Application Programming Interface (API), Java, Java Programming, API Design, Object-Relational Mapping, Data Persistence, JSON, Extensible Markup Language (XML)
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Node.JS, Web Development, HTML and CSS, Front-End Web Development, Web Servers, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Web Applications, JavaScript Frameworks, Server Side, Javascript, Middleware, Back-End Web Development
Intermediate · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Virtual Private Networks (VPN), Google Cloud Platform, Multi-Cloud, Hybrid Cloud Computing, Virtual Networking, Cloud Services, Border Gateway Protocol, Network Infrastructure, General Networking, Wide Area Networks, Network Routing, Network Planning And Design, Encryption
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Bash (Scripting Language), Shell Script, Scripting, Unix Shell, Command-Line Interface, Scripting Languages, Code Reusability, Automation, DevOps
★ 4.7 (7) · Beginner · Guided Project · Less Than 2 Hours

University of Illinois Urbana-Champaign
Skills you'll gain: Plant Operations and Management, Biology, Environment
★ 4.8 (8) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Usability Testing, Usability, Figma (Design Software), Responsive Web Design, User Experience Design, Interaction Design, User Experience, UI/UX Research, Prototyping, User Interface and User Experience (UI/UX) Design, Software Design Documents, Design Specifications, Mockups, User Interface (UI) Design, UI Components, Technical Documentation, Animations
★ 5 (8) · Intermediate · Course · 1 - 4 Weeks

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Engineering, Thermal Management, Materials science, Physics, Engineering Calculations, Three-Phase, Physical Science, Applied Mathematics
Intermediate · Course · 1 - 3 Months

Skills you'll gain: TCP/IP, Network Routers, Network Routing, Network Security, General Networking, Remote Access Systems, Network Administration, Network Protocols, Network Infrastructure, Network Troubleshooting, Network Switches, System Configuration, Verification And Validation
★ 4.8 (9) · Intermediate · Course · 1 - 4 Weeks