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.

Board Infinity
Skills you'll gain: Unit Testing, .NET Framework, Integration Testing, Software Testing, Test Case, Development Testing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Computer Graphics, Application Development, Visualization (Computer Graphics), Software Design, C++ (Programming Language), Microsoft Windows, Software Architecture, Application Lifecycle Management, Context Management, System Configuration, Debugging
Mixed · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Teradata SQL, SQL, Data Store, Database Design, Database Management, Relational Databases, Query Languages, Data Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Routing Protocols, Wide Area Networks, Software-Defined Networking, Open Shortest Path First (OSPF), Network Routing, Network Planning And Design, Virtual Networking, Network Architecture, Border Gateway Protocol, Network Performance Management, Network Protocols
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Project Closure, Risk Mitigation, Project Risk Management, Project Planning, Business Communication
Beginner · Course · 1 - 4 Weeks

Alex Genadinik
Skills you'll gain: Lead Generation, Search Engine Optimization, Account Strategy, Keyword Research, Outbound Calls, Sales Prospecting, Upselling, Web Analytics and SEO, B2B Sales, Sales Strategy, Marketing Strategies, Content Marketing, Target Market, Content Creation
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Exploit development, Penetration Testing, Cybersecurity, Ansible, Malware Protection, Incident Response, Security Engineering, Cloud Deployment, Infrastructure as Code (IaC), Cloud Platforms, Terraform, Cloud Computing, Cloud Infrastructure, Virtualization, Virtual Machines, Linux, Scalability
Intermediate · Course · 1 - 4 Weeks
University of Glasgow
Skills you'll gain: JSON, Data Structures, Analytics, Computational Thinking, Data Analysis, Data Visualization Software, Scripting, Javascript, Data Processing, Unsupervised Learning, Data Modeling, Machine Learning, Programming Principles, Object Oriented Programming (OOP), Computer Programming, Algorithms, Software Development
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Django (Web Framework), Model View Controller, Authentications, Chart.js, Data Import/Export, Full-Stack Web Development, Web Development, Data Modeling, Cascading Style Sheets (CSS), Responsive Web Design, Javascript, User Interface (UI), Development Environment
Intermediate · Course · 1 - 3 Months

Logical Operations
Skills you'll gain: Seaborn, Matplotlib, Data Transformation, Plot (Graphics), Pandas (Python Package), Data Manipulation, Data Visualization Software, NumPy, Data Visualization, Data Analysis, Scatter Plots, Data Science, Jupyter, Graphing, Data Processing, Box Plots, Python Programming, Computer Programming, Computer Programming Tools, Software Development
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Google Cloud Platform, Hybrid Cloud Computing, Data Processing, Big Data, Data Warehousing, Cloud Services, Data Storage, Cloud Infrastructure, Dataflow, Cloud Computing, Database Administration, Databases, Virtual Networking, Load Balancing, Virtual Private Networks (VPN), Virtual Machines, Identity and Access Management
Intermediate · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Microsoft Word, Microsoft Office, Proofreading, Microsoft 365, Business Writing, Document Management, Productivity Software, Editing, Microsoft Windows, Writing and Editing, Computer Literacy, Technical Documentation, Writing, Web Content, Report Writing, Business Communication, Productivity, Collaborative Software, Collaboration, Web Content Accessibility Guidelines
Mixed · Course · 1 - 3 Months