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: 3D Modeling, 3D Assets, Visualization (Computer Graphics), Graphical Tools, Design Software, Control Panels, Editing, Build Tools, User Interface (UI), Design, Design and Product, Creative Design, Software Installation
★ 4.9 (22) · Mixed · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Data Storytelling, Digital Transformation, Data-Driven Decision-Making, Business Transformation, Data Presentation, Data Literacy, Agile Project Management, Business Analytics, Strategic Decision-Making, Decision Intelligence, Data Strategy, Analytics, Customer experience improvement, Scaled Agile Framework, Agile Methodology, Storytelling, Presentations, Microsoft Power Platform, Applied Machine Learning, Stakeholder Communications
★ 4.9 (25) · Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Machine Controls, Robotics, Graph Theory, Control Systems, Algorithms, Artificial Intelligence, Mechanics, Python Programming
★ 4.4 (19) · Intermediate · Course · 1 - 3 Months

Whizlabs
Skills you'll gain: Amazon CloudWatch, AWS CloudFormation, Serverless Computing, Configuration Management, Amazon Web Services, Software Configuration Management, DevOps, Infrastructure as Code (IaC), Amazon Elastic Compute Cloud, Scalability, Event Monitoring, System Monitoring
★ 4.2 (16) · Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Pandas (Python Package), Data Cleansing, Data Manipulation, Data Preprocessing, Data Wrangling, NumPy, File I/O, Query Languages, Data Transformation, Data Integration, Python Programming, Data Analysis, Debugging
★ 4.3 (16) · Beginner · Course · 1 - 4 Weeks

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Chemical Engineering, Energy and Utilities, Chemical and Biomedical Engineering, Chemistry, Engineering, Process Engineering, Environmental Engineering, Biological Engineering, Sustainable Engineering, Engineering Calculations, Engineering Analysis, Mathematical Modeling
★ 4.9 (19) · Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: SQL, GitHub, Version Control, Git (Version Control System), MySQL, Query Languages, Jupyter, Development Environment
★ 4.4 (10) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Algorithms, Technical Communication, Solution Design, Programming Principles, Theoretical Computer Science, Data Structures, Applied Mathematics, Computer Science
★ 4.3 (28) · Beginner · Course · 1 - 4 Weeks

L&T EduTech
Skills you'll gain: Project Schedules, Earned Value Management, Risk Analysis, Cost Estimation, Scheduling, Cost Management, Project Controls, Project Management, Project Planning, Project Estimation, Resource Allocation, Project Risk Management, Budget Management, Risk Mitigation, Resource Management, Timelines, Risk Management, Resource Planning, Budgeting, Cost Control
★ 4.7 (14) · Advanced · Course · 1 - 3 Months

The University of Edinburgh
Skills you'll gain: Physics, Mechanics, Experimentation, Scientific Methods, Science and Research, Physical Science, Mathematical Modeling, electromagnetics, General Science and Research, Applied Mathematics
★ 4.8 (26) · Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Artificial Intelligence, Generative AI, Decision Intelligence, Machine Learning Algorithms, Mathematical Theory & Analysis
★ 4.4 (19) · Intermediate · Course · 1 - 3 Months

Koç University
Skills you'll gain: Integral Calculus, Calculus, Advanced Mathematics, Differential Equations, Applied Mathematics, Linear Algebra, Mathematical Modeling, Mathematical Theory & Analysis, Derivatives, Physics, Geometry
★ 4.4 (14) · Mixed · Course · 1 - 3 Months