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: Secure Coding, Application Security, Authorization (Computing), Authentications, Data Validation, Role-Based Access Control (RBAC), Security Controls, Configuration Management, Package and Software Management, Cybersecurity, Identity and Access Management, Software Installation, Computer Programming, Information Technology
Beginner · Course · 1 - 3 Months

Skills you'll gain: Automation, Safety Assurance, Safety Standards, Electrical Systems, Emerging Technologies, Environmental Issue, Computer Vision, Artificial Intelligence, Algorithms
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Prototyping, User Interface (UI) Design, User Interface (UI), Figma (Design Software), User Interface and User Experience (UI/UX) Design, Application Design, Design, Interactive Design, Collaborative Software
Beginner · Guided Project · Less Than 2 Hours

Codio
Skills you'll gain: Algorithms, Data Structures, Java, Java Programming, Other Programming Languages
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Call Center Experience, Customer Complaint Resolution, De-escalation Techniques, Conflict Management, Customer Inquiries, Customer Service, Customer Relationship Building, Interviewing Skills, Inbound Calls, Outbound Calls, Problem Solving, Keyword Research, Verbal Communication Skills, Communication
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Electronics, Communication Systems, Digital Communications, Telecommunications, Digital Signal Processing, Electronic Components, Hardware Troubleshooting, Computer Hardware, Network Analysis
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Context Engineering, Agentic Workflows, AI Orchestration, Tool Calling, Generative AI, Gemini, Artificial Intelligence, Google Gemini, Retrieval-Augmented Generation, Model Optimization, Embeddings, Workflow Management, Python Programming, Data Validation
Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Angular, TypeScript, JavaScript Frameworks, UI Components, Bootstrap (Front-End Framework), Application Frameworks, Code Reusability, Web Development Tools, Web Applications, Front-End Web Development, Software Architecture, Application Development, Command-Line Interface, Development Environment, Cascading Style Sheets (CSS)
Beginner · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: Group Policy, Dynamic Host Configuration Protocol (DHCP), Azure Active Directory, Active Directory, Windows Servers, Hyper-V, Remote Access Systems, iSCSI Configuration, Virtual Private Networks (VPN), Containerization, Microsoft Azure, Kubernetes, Microsoft Servers, Microsoft Windows, Docker (Software), Hybrid Cloud Computing, Virtualization, Virtual Machines, Server Administration, Network Administration
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Performance Analysis
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Semiconductors, Power Electronics, Electronic Components, Electronic Systems, Electronics Engineering, Electronics, Electrical Power, Electrical Engineering, Electric Power Systems, Thermal Management, Simulation and Simulation Software
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Electrical Systems, Embedded Software, Electric Power Systems, Engineering Software, Power Electronics, Hardware Troubleshooting, Software Systems, Systems Architecture, Electrical Engineering, Systems Integration, Debugging, Control Systems
Beginner · Course · 1 - 4 Weeks