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.

Birla Institute of Technology & Science, Pilani
Skills you'll gain: C (Programming Language), Programming Principles, Computer Programming, Memory Management, Computational Thinking, Computer Systems, Data Structures, Algorithms, File I/O, Operating Systems, Computer Hardware
★ 4.5 (56) · Beginner · Course · 1 - 3 Months

Universitat Autònoma de Barcelona
Skills you'll gain: Video Game Development, Computer Graphics, Visualization (Computer Graphics), Animation and Game Design, Game Design, 3D Assets, Microsoft Visual Studio, Computer Graphic Techniques, Artificial Intelligence, User Interface (UI), Animations, Application Development
★ 3.9 (105) · Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: SQL, PostgreSQL
★ 4.3 (66) · Advanced · Guided Project · Less Than 2 Hours

Columbia University
Skills you'll gain: Regression Analysis, Derivatives, Financial Market, Statistical Methods, Market Data, Financial Modeling, Securities (Finance), Mathematical Modeling, Numerical Analysis, Equities, Model Optimization, Python Programming, Algorithms, Case Studies
★ 4.4 (44) · Intermediate · Course · 1 - 3 Months

28DIGITAL
Skills you'll gain: Semantic Web, Query Languages, Data Management, Data Integration, Data Processing, Data Access, Data Sharing, Web Applications, Data Mining, Interoperability, Software Architecture, Data Architecture, Data Modeling
★ 4.1 (94) · Intermediate · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Data Governance, SQL, Data Quality, Data Management, Data Manipulation, Database Design, Data Transformation, Data Wrangling, Query Languages, Data Modeling, Database Systems, Data Literacy, Relational Databases, Data Processing, Data Analysis, Descriptive Statistics
★ 4.2 (31) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Agile Methodology, Registration
★ 4.9 (60) · Advanced · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Image Quality, Engineering, Scientific, and Technical Instruments, Electrical Engineering, Image Analysis, Systems Design, Human Factors, System Design and Implementation, Engineering Calculations, Technical Design, Simulation and Simulation Software, Engineering Design Process, Mathematical Modeling, Applied Mathematics
★ 4.6 (53) · Advanced · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Requirements Analysis, Security Requirements Analysis, Requirements Elicitation, Goal Setting, User Requirements Documents, Unified Modeling Language, Meeting Facilitation, Conflict Management, Discussion Facilitation, Risk Management Framework, Negotiation, Security Awareness
★ 4.7 (66) · Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: JUnit, Test Driven Development (TDD), Unit Testing, Software Testing, Test Case, Eclipse (Software), Test Script Development, Test Data, Development Testing, Test Automation, Test Execution Engine, Integrated Development Environments, Testability, Java, Test Tools
★ 3.8 (73) · Intermediate · Specialization · 1 - 3 Months

University of Colorado System
Skills you'll gain: Unity Engine, Video Game Development, C# (Programming Language), Game Design, Object Oriented Design, Object Oriented Programming (OOP), Application Design, Software Design, Programming Principles, Application Development
★ 4.8 (68) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Bootstrap (Front-End Framework), Browser Compatibility, Responsive Web Design, Web Design and Development, Cascading Style Sheets (CSS), Front-End Web Development, UI Components, React.js, Application Frameworks
★ 4.4 (104) · Intermediate · Course · 1 - 4 Weeks