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.

Coursera
Skills you'll gain: UI/UX Research, Prototyping, User Interface (UI) Design, User Interface and User Experience (UI/UX) Design, AI Personalization, User Experience, User Experience Design, Usability, Figma (Design Software), User Research, Web Content Accessibility Guidelines, Data Storytelling, Interactive Design, Generative AI, Design Strategies, UI Components, User Centered Design, Wireframing, Adobe XD, Artificial Intelligence and Machine Learning (AI/ML)
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Git (Version Control System), GitHub, Version Control, Open Source Technology, Collaborative Software, Unix Commands, Microsoft Visual Studio, Continuous Integration, Linux, Mac OS, Web Development Tools, File Management, Shell Script, Command-Line Interface, Code Review, Data Integrity, Application Deployment, React.js, Hypertext Markup Language (HTML), Technical Communication
Beginner · Specialization · 3 - 6 Months

University of Maryland, College Park
Skills you'll gain: Presentations, Oral Expression, Professional Development, Interviewing Skills, English Language, Verbal Communication Skills, Adaptability, Communication, Self-Awareness, Personal Development, Language Learning
Intermediate · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Grammar, English Language, Language Learning, Language Competency
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Test Automation, Test Script Development, Software Testing, Javascript, Browser Compatibility, Scripting, Automation, Web Development Tools, Test Case, Cascading Style Sheets (CSS), Debugging, Mac OS
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Supplier Management, Project Schedules, Project Closure, Milestones (Project Management), Scheduling, Engineering Management, Procurement, Quality Management, Project Planning, Risk Management, Risk Analysis, Budget Management, Cost Estimation, Risk Mitigation, Project Management, Quality Assurance, Timelines, Quality Control
Build toward a degree
Beginner · Course · 1 - 4 Weeks

MathWorks
Skills you'll gain: Model Based Systems Engineering, Engineering Design Process, Simulation and Simulation Software, Robotics, Mathematical Modeling, Engineering Analysis, Engineering Software, Engineering, Mechanical Engineering, Control Systems
Beginner · Course · 1 - 4 Weeks

Akamai Technologies, Inc.
Skills you'll gain: Endpoint Security, Database Systems, Computer Security Incident Management, Security Management, Ubuntu, Routing Protocols, Database Design, Application Development, Network Architecture, Linux Commands, TCP/IP, Operating Systems, Database Theory, Web Design and Development, Cascading Style Sheets (CSS), Web Development, Data Structures, Python Programming, Data Analysis, Software Development
Beginner · Professional Certificate · 3 - 6 Months

Microsoft
Skills you'll gain: Penetration Testing, Security Testing, System Testing, Vulnerability Scanning, Vulnerability Management, Cloud Security, Cybersecurity, Vulnerability Assessments, Intrusion Detection and Prevention, Network Security, Exploitation techniques, Microsoft Azure, Firewall, Virtual Private Networks (VPN)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Musical Composition, Music, Music Theory, Music Performance
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: AWS Identity and Access Management (IAM), Identity and Access Management, Amazon Web Services, Cloud Computing, Cloud Security, Cloud Infrastructure, Cloud Technologies, Public Cloud, Amazon Elastic Compute Cloud, Solution Architecture, Scalability
Beginner · Course · 1 - 4 Weeks
The University of Edinburgh
Skills you'll gain: Life Sciences, Biology, Environmental Science, Environment, Research, Biochemistry, Microbiology, Scientific Methods, Chemistry
Mixed · Course · 1 - 3 Months