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: Selenium (Software), JUnit, HTML and CSS, Test Automation, Software Testing, Test Script Development, Web Development, Software Quality Assurance, Continuous Integration, Java, Test Execution Engine, Object Oriented Programming (OOP), Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Electrical Systems, Basic Electrical Systems, Hardware Troubleshooting, Software Systems, Electrical Engineering, Test Engineering, Systems Integration, Debugging, Performance Tuning
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Cybersecurity, Network Security, Internet Of Things, Infrastructure Security, Communication Systems, Wireless Networks, Cloud Computing Architecture, Network Architecture, General Networking, Network Infrastructure, Hardware Architecture, Distributed Computing, Information Privacy
Beginner · Course · 1 - 4 Weeks

University of Glasgow
Skills you'll gain: Wireless Networks, Emerging Technologies, Digital Communications, Communication Systems, Internet Of Things, Software-Defined Networking, Network Planning And Design, Distributed Computing, Artificial Intelligence and Machine Learning (AI/ML), Electrical Engineering, Electronics Engineering, Zero Trust Network Access, Information Technology, Machine Learning, Trustworthiness
Intermediate · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Cascading Style Sheets (CSS), GitHub, Front-End Web Development, Web Applications, Web Development, Mobile Development, User Interface (UI) Design
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Sustainable Business, Organizational Leadership, Organizational Change, Corporate Sustainability, Business Transformation, Sustainable Development, Performance Measurement, Waste Minimization, Business Modeling, Innovation, Product Lifecycle Management, Resource Management, Environmental Social And Corporate Governance (ESG), Key Performance Indicators (KPIs), Packaging and Labeling, Case Studies
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Responsive Web Design, HTML and CSS, Cascading Style Sheets (CSS), Web Design, Web Design and Development, Web Development, UI Components, Usability, Typography
Intermediate · Course · 1 - 3 Months
Skills you'll gain: Team Building, Team Leadership, Leadership and Management, Rapport Building, Employee Onboarding, Leadership, Recognizing Others, Team Motivation, Performance Analysis, Employee Performance Management, Meeting Facilitation, Constructive Feedback, Safety Culture, Productivity, Coaching, Workplace inclusivity, Empathy, Goal Setting, Planning, Communication
Beginner · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Kinesiology, Human Musculoskeletal System, Scientific Methods, Exercise Science, Anthropology, Biology, Anatomy, 3D Assets, Research, Mechanics, Physiology, Human Development, Taxonomy, Child Development, Visualization (Computer Graphics), Life Sciences, Scientific Visualization, Spatial Data Analysis, Obstetrics And Gynecology, Orthopedics
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Blockchain, FinTech, Application Development, Emerging Technologies, Computer Programming Tools, Program Development, Cryptography, Development Environment, Programming Principles, Transaction Processing, Data Structures, Debugging
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Cascading Style Sheets (CSS), HTML and CSS, Front-End Web Development, Javascript, Responsive Web Design, Maintainability
Intermediate · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Secure Coding, Application Security, Encryption, Security Controls, Data Security, Database Application, Web Servers, Web Applications, Cryptography, Data Encryption Standard, Authentications, Query Languages, Data Validation, Computer Programming
Beginner · Course · 1 - 4 Weeks