HTML, CSS, and JavaScript courses can help you learn web page structure, styling, and interactivity, along with responsive design and accessibility practices. You can build skills in creating layouts, implementing animations, and optimizing user experiences across different devices. Many courses introduce tools like code editors, version control systems, and browser developer tools, that support testing and refining your projects. By mastering these skills and tools, you’ll be well-equipped to develop engaging websites and applications.

University of Colorado Boulder
Skills you'll gain: Mindfulness, Teaching, Self-Awareness, Classroom Management, Empathy & Emotional Intelligence, Social Studies, Storytelling, Adult Education, Parent Communication, Resilience, Cultural Responsiveness, Stress Management, Emotional Intelligence, Community Development, Collaboration, Liberal Arts
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Customer Success Management, Salesforce, Dashboard, Sales Operations, Customer Relationship Management (CRM) Software, Data Visualization, Customer Support, Sales Management, Customer Service, Sales Strategy, Sales Process, Business Reporting, Data-Driven Decision-Making
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Natural Language Processing, Data Ethics, Responsible AI, Text Mining, Large Language Modeling, Model Evaluation, Embeddings, Data Preprocessing, Transfer Learning, Artificial Intelligence and Machine Learning (AI/ML), Time Series Analysis and Forecasting, Data Analysis, Unstructured Data, Data Cleansing, Data Processing, Classification Algorithms, Deep Learning, Machine Learning Methods, Unified Modeling Language, Machine Learning Algorithms
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cryptography, Cybersecurity, Network Security, Threat Modeling, Encryption, Identity and Access Management, Information Systems Security, Threat Detection, Firewall, Infrastructure Security, Security Controls, Security Strategy, Authorization (Computing), Authentications, Security Awareness, Risk Management Framework
Beginner · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Climate Change Mitigation, Climate Change Adaptation, Social Impact, Sustainable Development, Sustainable Design, Driving engagement
Beginner · Course · 1 - 3 Months

Whizlabs
Skills you'll gain: Serverless Computing, Amazon Web Services, Cloud Computing Architecture, Solution Architecture, Containerization, Data Migration, Cloud Deployment, Data Pipelines, Cloud Solutions, Data Processing
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Data Warehousing, Database Design, Data Integration, Extract, Transform, Load, Data Modeling, Star Schema, Relational Databases, Snowflake Schema, Business Intelligence, SQL, Pivot Tables And Charts, Data Mart, PostgreSQL, Data Transformation
Mixed · Course · 1 - 3 Months

Skills you'll gain: Mobile Development, Game Design, Video Game Development, User Interface (UI), Unity Engine, Android Development, C# (Programming Language), Animations, Scripting, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Risk Management Framework, Risk Analysis, Risk Management, Incident Response, Business Continuity Planning, Security Management, Threat Modeling, Computer Security Incident Management, Threat Management, Business Risk Management, Disaster Recovery, Governance Risk Management and Compliance, Operational Risk, Investigation, Cyber Threat Intelligence, Continuous Monitoring, Cybersecurity, Vulnerability Management, Digital Forensics, General Data Protection Regulation (GDPR)
Intermediate · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Agentic Workflows, LangGraph, AI Orchestration, Data Visualization, Prompt Engineering, Generative AI Agents, Model Evaluation, LLM Application, Tool Calling, Retrieval-Augmented Generation, Agentic systems, Data Validation, Generative AI, Large Language Modeling
Intermediate · Project · Less Than 2 Hours

Amazon Web Services
Skills you'll gain: Amazon Web Services, Private Cloud, Virtual Networking, Load Balancing, Identity and Access Management, Cloud Services
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Recurrent Neural Networks (RNNs), PyTorch (Machine Learning Library), Text Mining, Artificial Neural Networks, Natural Language Processing, Classification Algorithms, Deep Learning, Applied Machine Learning, Network Architecture, Machine Learning
Intermediate · Course · 1 - 4 Weeks