JavaScript courses can help you learn programming fundamentals, DOM manipulation, asynchronous programming, and event-driven development. You can build skills in debugging, working with APIs, and creating interactive web applications. Many courses introduce tools like Node.js for server-side development, React for building user interfaces, and Git for version control, showing how these skills come together in real-world projects.

Illinois Tech
Skills you'll gain: Javascript and jQuery, Responsive Web Design, Cascading Style Sheets (CSS), Web Design and Development, HTML and CSS, GitHub, Web Applications, JavaScript Frameworks, Web Development Tools, Git (Version Control System), Infrastructure Architecture, Browser Compatibility, Animations
Build toward a degree
Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: React.js, Routing Protocols, JavaScript Frameworks, Frontend Performance, Web Content Accessibility Guidelines, UI Components, Debugging, Javascript, Context Management, User Flows, Authentications, Data Management
Advanced · Course · 1 - 3 Months
Skills you'll gain: Web Content Accessibility Guidelines, User Interface (UI), Usability, Web Design, Hypertext Markup Language (HTML), Front-End Web Development, UI Components, Semantic Web, Cascading Style Sheets (CSS), Javascript
Intermediate · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: JavaScript Frameworks, React.js, Application Development, Application Deployment, Web Applications, Front-End Web Development, Web Development Tools, Web Development, Routing Protocols, Responsive Web Design, Server Side
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Pandas (Python Package), Scatter Plots, Histogram, Data Visualization, Data Manipulation, Data Import/Export, JSON, Data Cleansing, Data Visualization Software, Data Preprocessing, Exploratory Data Analysis, Data Analysis, Python Programming
Intermediate · Guided Project · Less Than 2 Hours
Codio
Skills you'll gain: Apache Maven, JSON, JUnit, Java Programming, Java, Restful API, Integrated Development Environments, Programming Principles, Data Structures, Object Oriented Programming (OOP), Network Protocols, Unit Testing, Style Guides
Intermediate · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Spring Boot, Spring Framework, Restful API, Application Programming Interface (API), API Design, Data Persistence, Web Applications, Application Frameworks, Software Testing, Object-Relational Mapping, Hibernate (Java), Application Security, Authentications, JSON, Authorization (Computing), Dependency Analysis
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Front-End Web Development, Frontend Performance, Responsible AI, Frontend Integration, Generative AI, Test Script Development, User Interface and User Experience (UI/UX) Design, Prompt Engineering, Software Documentation, UI/UX Strategy, User Experience Design, Test Automation, HTML and CSS
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Cloud API, JSON, Restful API, Application Programming Interface (API), Google Cloud Platform, Authentications, Network Protocols
Beginner · Project · Less Than 2 Hours

Skills you'll gain: OpenAI API, OpenAI, Prompt Engineering, JSON, Application Programming Interface (API), Web Applications, Generative AI, LLM Application, Data Processing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: HTML and CSS, JSON, Responsive Web Design, Ajax, Web Design and Development, Animations, Algorithms, Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Algorithms, Pseudocode, Javascript, Data Structures, Computational Thinking, Performance Tuning, Computer Programming, Solution Design, Object Oriented Programming (OOP), Debugging
Intermediate · Course · 1 - 4 Weeks