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.

Infosec
Skills you'll gain: Secure Coding, Application Security, System Programming, C++ (Programming Language), C (Programming Language), Unix, Embedded Systems, Debugging, Unix Commands, Operating Systems, Data Security, Linux, Microsoft Windows
Mixed · Course · 1 - 4 Weeks
Skills you'll gain: Blockchain, Digital Assets, FinTech, Business Modeling, Payment Systems, Emerging Technologies, Business Transformation, Distributed Computing, Transaction Processing, Identity and Access Management
Beginner · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Liberal Arts, Ethical Standards And Conduct, Research, Social Justice, Cultural Diversity, Culture, Writing, Political Sciences, Advocacy
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Waste Minimization, Environmental Engineering, Sustainable Engineering, Civil Engineering, Environmental Regulations, Sustainable Technologies, Environmental Resource Management, Environmental Laws, Environmental Policy, Transportation Operations, Traffic Flow Optimization, Environmental Monitoring, Estimation, Internet Of Things, Network Routing, Emerging Technologies
Intermediate · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Immigration Law, Social Justice, Community Development, Conflict Management, Diversity Programs, Crisis Intervention, Social Determinants Of Health, Sustainable Development, Social Impact, International Relations, Community and Social Work, Legal Research, Sociology, Advocacy, Storytelling
Beginner · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: FinTech, Portfolio Management, Consumer Lending, Return On Investment, Lending and Underwriting, Financial Services, Risk Analysis, Investments, Fundraising and Crowdsourcing, Financial Market, Asset Management, Case Studies, Wealth Management
Beginner · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Systems Thinking, Analysis, General Science and Research, Materials science, Simulations, Biology, Mathematical Modeling, Physics, Psychology, Computational Logic, Mechanics, Applied Mathematics
Mixed · Course · 1 - 3 Months

Institut Mines-Télécom
Skills you'll gain: Internet Of Things, Wireless Networks, Network Routing, Local Area Networks, Network Architecture, Network Protocols, Network Performance Management, Computer Networking, Telecommunications
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Data Mining, Anomaly Detection, Unsupervised Learning, Data Warehousing, Machine Learning Methods, Supervised Learning, Data Pipelines, Data Preprocessing, Classification Algorithms, Data Modeling, Decision Tree Learning, Data Science, Data Integration, Machine Learning Algorithms, Data Cleansing, Model Evaluation, Exploratory Data Analysis, Big Data, Analytical Skills, Data Analysis
Build toward a degree
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Penetration Testing, Vulnerability Scanning, Cyber Security Assessment, Vulnerability Assessments, MITRE ATT&CK Framework, Threat Detection, Infrastructure Security, Payment Card Industry (PCI) Data Security Standards, NIST 800-53, Network Analysis, General Data Protection Regulation (GDPR)
Intermediate · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Storytelling, Writing, World History, Liberal Arts, Political Sciences
Mixed · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Physics, Applied Mathematics, Geometry, Advanced Mathematics, Physical Science, electromagnetics, Mathematical Modeling, Trigonometry, Calculus, Algebra, Linear Algebra, Integral Calculus, Problem Solving
Intermediate · Course · 1 - 4 Weeks