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: HTML and CSS, Hypertext Markup Language (HTML), Responsive Web Design, Web Design, Cascading Style Sheets (CSS), Web Design and Development, Interaction Design, Usability, User Centered Design, User Interface (UI) Design, Persona (User Experience), Design Elements And Principles, Adobe Photoshop, Figma (Design Software)
Intermediate · Guided Project · Less Than 2 Hours

Whizlabs
Skills you'll gain: Serverless Computing, Amazon S3, Amazon Web Services, Kubernetes, Containerization, Cloud Storage, Disaster Recovery, Application Deployment, Cloud Deployment, Cloud Computing Architecture, Cloud Solutions, Continuous Deployment, Data Storage, Scalability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Applied Machine Learning, Data Science, Python Programming, Scikit Learn (Machine Learning Library), NumPy, Computational Thinking, Machine Learning Algorithms, Pandas (Python Package), Data Analysis, Data Processing, AI Personalization, Data Wrangling, Exploratory Data Analysis, Programming Principles, Data Manipulation, Development Environment
Beginner · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Data Structures, Data Processing, Application Development, Programming Principles, Computer Programming, Object Oriented Programming (OOP), Python Programming, System Configuration, Virtual Machines, Software Development
Mixed · Course · 1 - 4 Weeks

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Spatial Analysis, Spatial Data Analysis, GIS Software, Geospatial Information and Technology, Geographic Information Systems, Geospatial Mapping, Geostatistics, Interactive Data Visualization, Data Integration, Data Mapping, Augmented Reality, Statistical Analysis, Sampling (Statistics)
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Descriptive Statistics, Descriptive Analytics, Jupyter, Microsoft Azure, Statistical Visualization, Plot (Graphics), Model Training, Data Analysis, Statistics, Exploratory Data Analysis, Data Visualization Software, Correlation Analysis, Applied Machine Learning, Machine Learning Methods
Beginner · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: Responsive Web Design, LinkedIn, Cascading Style Sheets (CSS), Front-End Web Development, HTML and CSS, Professional Development, Web Presence, Web Development, Javascript, GitHub, Data Structures, Programming Principles
Intermediate · Course · 1 - 4 Weeks

Technical University of Munich (TUM)
Skills you'll gain: Lean Manufacturing, Quality Improvement, Production Schedule, Production Process, Kaizen Methodology, Quality Management, Production Management, Production Line, Manufacturing Operations, Continuous Improvement Process, Product Quality (QA/QC), Lean Methodologies, Lean Six Sigma, Process Improvement, Scheduling, Quality Control, Operational Efficiency, Process Analysis, Kanban Principles, Workflow Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Application Security, Patch Management, Data Security, Information Systems Security, Cloud Security, Cybersecurity, Endpoint Security, Cyber Attacks, Internet Of Things, Mobile Security, Hardening, Personally Identifiable Information, General Data Protection Regulation (GDPR), Network Security, Information Privacy, Vulnerability Management, Data Storage, Operating Systems, Cloud Services, Cloud Platforms
Mixed · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Bioinformatics, Epidemiology, Infectious Diseases, Molecular, Cellular, and Microbiology, Life Sciences, Computational Thinking, Molecular Biology, Biology, Science and Research
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Maintainability, Web Development Tools, Development Testing, JavaScript Frameworks, Development Environment, Web Applications, Event-Driven Programming, Software Installation, Configuration Management, Data Validation
Intermediate · Course · 1 - 3 Months

Duke University
Skills you'll gain: Scalability, Performance Measurement, Performance Analysis, Simulations, Algorithms, Performance Metric, Simulation and Simulation Software, Complex Problem Solving, Theoretical Computer Science, Python Programming, Data Structures, Software Engineering
Beginner · Guided Project · Less Than 2 Hours