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.

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

Skills you'll gain: Figma (Design Software), UI Components, Typography, Prototyping, Responsive Web Design, Interaction Design, UI/UX Strategy, User Experience Design, User Experience, User Interface (UI), Graphic and Visual Design, User Interface and User Experience (UI/UX) Design, Mockups, Layout Design, User Interface (UI) Design, Animations, Collaborative Software, Web Content Accessibility Guidelines, AI Workflows, Design Strategies
Intermediate · Specialization · 3 - 6 Months
University of Colorado Boulder
Skills you'll gain: Vibrations, Control Systems, Mechanics, Torque (Physics), Mechanical Engineering, Engineering Analysis, Engineering Calculations, Differential Equations, Mathematical Modeling, Simulation and Simulation Software
Advanced · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Presentations, Adaptability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Open Shortest Path First (OSPF), Network Performance Management, Virtual Networking, Network Monitoring, Firewall, Network Planning And Design, Network Protocols, Infrastructure as Code (IaC), Terraform, Configuration Management, Encryption, System Configuration, Scalability
Beginner · Specialization · 3 - 6 Months

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

DeepLearning.AI
Skills you'll gain: Federated Learning, Transfer Learning, AI Security, Large Language Modeling, PyTorch (Machine Learning Library), Information Privacy, Distributed Computing, Machine Learning
Beginner · Project · Less Than 2 Hours

L&T EduTech
Skills you'll gain: Environmental Social And Corporate Governance (ESG), Sustainable Architecture, Sustainable Development, Sustainable Technologies, Sustainability Reporting, Climate Change Mitigation, Corporate Sustainability, Energy and Utilities, Innovation, Environment, Transportation Operations, Architecture and Construction, Architectural Engineering
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft SQL Servers, Data Security, Microsoft Azure, Cloud Security, Database Management, Data Management, Data Access, Role-Based Access Control (RBAC)
Intermediate · Guided Project · Less Than 2 Hours

EDUCBA
Skills you'll gain: UI Components, User Interface (UI), User Interface (UI) Design, Event-Driven Programming, Application Design, Development Environment, Application Development, Application Frameworks
Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: Adobe After Effects, Animations, Logo Design, Motion Graphics, Graphical Tools, Graphic Design, File Management
Beginner · Course · 1 - 4 Weeks