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.

Scrimba
Skills you'll gain: React.js, UI Components, Front-End Web Development, Web Content Accessibility Guidelines, User Interface (UI), Code Reusability, JavaScript Frameworks, Web Development Tools, Web Frameworks, Cascading Style Sheets (CSS), Application Programming Interface (API), Data Mapping
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Responsive Web Design, UI Components, HTML and CSS, Front-End Web Development, Web Design, Bootstrap (Front-End Framework), User Interface (UI), Web Design and Development, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), User Interface and User Experience (UI/UX) Design, User Interface (UI) Design, Event-Driven Programming, Web Applications, Web Development, Interactive Design, Design, Interaction Design, Javascript, User Experience Design
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: MySQL, Stored Procedure, Database Management, SQL, Transaction Processing, Databases, Database Development, JSON, Relational Databases, Query Languages, Advanced Analytics, Performance Tuning, Data Analysis
Intermediate · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Spring Framework, Object-Relational Mapping, Cloud Security, Java, Java Programming, Scalability, Cloud Development, Cloud Applications, Cloud API, Secure Coding, Web Services, Cloud Services, Cloud Computing, Cloud Computing Architecture, JSON, Cloud Deployment, Java Platform Enterprise Edition (J2EE), Data Security, Web Servers, Restful API
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: OAuth, API Gateway, Application Programming Interface (API), Cloud API, API Design, Application Security, Restful API, Authentications, Data Loss Prevention, Data Security, Authorization (Computing), Cryptographic Protocols, JSON, Threat Management, Identity and Access Management, Threat Detection
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Responsive Web Design, HTML and CSS, Hypertext Markup Language (HTML), Typography, Cascading Style Sheets (CSS), Web Design, Web Development Tools, Browser Compatibility, Front-End Web Development, Application Deployment, Web Design and Development, Web Development, Computer Programming Tools, Animations, Development Environment, Software Development Tools, UI Components, Javascript, Maintainability, User Interface (UI)
Beginner · Specialization · 3 - 6 Months

Universidad Austral
Skills you'll gain: File I/O, Data Structures, Python Programming, JSON, File Management, Scripting, Scripting Languages, Data Import/Export, Computer Programming
Beginner · Course · 1 - 4 Weeks

Amazon
Skills you'll gain: Full-Stack Web Development, Restful API, Cloud Deployment, Frontend Integration, Front-End Web Development, Web Design and Development, Web Services, Cloud Development, Application Deployment, Cloud Applications, Web Development, Spring Framework, Amazon Web Services, HTML and CSS, Data Persistence, Application Programming Interface (API), Server Side, Web Applications, Back-End Web Development, Javascript
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Django (Web Framework), Performance Tuning, Postman API Platform, Restful API, Application Programming Interface (API), Data Validation, Authentications, Frontend Integration, React.js, API Testing, Authorization (Computing), Secure Coding, Object-Relational Mapping, API Design, Scalability, JavaScript Frameworks, JSON, Test Tools, Web Development, Python Programming
Advanced · Specialization · 3 - 6 Months
Skills you'll gain: Pandas (Python Package), NumPy, Data Manipulation, Code Reusability, Data Preprocessing, Data Wrangling, Package and Software Management, Data Analysis, Data Processing, Data Integration, JSON, Object Oriented Programming (OOP), Data Science, Data Structures, Python Programming, Exploratory Data Analysis, Programming Principles, Data Import/Export, Data Storage, Computational Logic
Beginner · Specialization · 3 - 6 Months

University of California San Diego
Skills you'll gain: Data Processing, Data Manipulation, Data Visualization, Interactive Data Visualization, Web Scraping, Data Visualization Software, Pandas (Python Package), Data Analysis, Data Preprocessing, Data Science, Data Cleansing, Matplotlib, Data Import/Export, NumPy, JSON, Python Programming, File I/O
Intermediate · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Core Data (Software), Apple iOS, iOS Development, JSON, Objective-C (Programming Language), OAuth, Authentications, Mobile Development, Single Sign-On (SSO), Web Services, Secure Coding, Data Store, Cryptographic Protocols, Application Security, Data Persistence
Mixed · Course · 1 - 4 Weeks