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: Web Services, Restful API, Apache Maven, Spring Boot, Spring Framework, Gradle, Simple Object Access Protocol (SOAP), Java Platform Enterprise Edition (J2EE), Java, API Design, Application Frameworks, Secure Coding, Object-Relational Mapping, Data Persistence, JSON, Extensible Markup Language (XML)
Intermediate · Course · 3 - 6 Months

Skills you'll gain: HTML and CSS, Figma (Design Software), Front-End Web Development, User Interface (UI), Responsive Web Design, Web Design and Development, Mockups, Web Design, Web Content Accessibility Guidelines, Prototyping, Javascript, Web Development
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Debugging, HTML and CSS, Web Development, Mobile Development, Database Application, Responsive Web Design, Real Time Data, User Interface (UI) Design, Secure Coding, Javascript, Data Storage Technologies
Intermediate · Course · 1 - 4 Weeks

SkillsBooster Academy
Skills you'll gain: Keyword Research, Search Engine Optimization, Web Analytics and SEO, Competitive Analysis, Data Ethics, ChatGPT, Search Engine Marketing, Content Creation, Content Performance Analysis, Artificial Intelligence, Digital Marketing, Content Marketing, Marketing, Business Strategy, Business Ethics, Marketing Strategy and Techniques, Market Research, Digital Media Strategy, Product Strategy, Marketing Materials
Intermediate · Course · 1 - 3 Months

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: React.js, Application Deployment, Cloud Deployment, Web Applications, Javascript, Bootstrap (Front-End Framework), Development Environment, User Interface (UI), Cascading Style Sheets (CSS), Application Programming Interface (API)
Beginner · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Animation and Game Design, Visualization (Computer Graphics), Generative AI, Simulations, Computer Graphics, Python Programming, Creative Design, Object Oriented Programming (OOP), Algorithms, Data Structures
Advanced · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Photo/Video Production and Technology, Promotional Materials, Marketing Materials, Presentations, Writing, Layout Design, Copywriting, Music, Content Creation, Branding, Design, Target Audience, Communication
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Salesforce, Application Deployment, Salesforce Development, Dashboard, Cloud Deployment, Customer Relationship Management, Change Control, Analytics, Continuous Deployment, Data Import/Export, Authentications, Data Migration, Configuration Management, Data Presentation, Data Access, Responsive Web Design, System Configuration, Workflow Management, Data Management, Business Logic
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: MLOps (Machine Learning Operations), Data Preprocessing, AWS SageMaker, Model Evaluation, Model Deployment, Artificial Intelligence and Machine Learning (AI/ML), Amazon Web Services, Predictive Modeling, Machine Learning, Supervised Learning, Data Transformation, Unsupervised Learning, Classification Algorithms
Intermediate · Course · 1 - 4 Weeks

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

Duke University
Skills you'll gain: Bash (Scripting Language), Shell Script, Scripting, Unix Shell, Linux Commands, Command-Line Interface, Unix Commands, Business Logic, DevOps
Beginner · Guided Project · Less Than 2 Hours