
Skills you'll gain: Object Oriented Programming (OOP), Java Programming, Java, Object Oriented Design, Data Structures, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Javascript, JSON, Web Applications, Computer Programming, Application Design, Scripting Languages, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Prototyping, Context Management
Beginner · Specialization · 3 - 6 Months

LearnKartS
Skills you'll gain: Git (Version Control System), GitHub, Bitbucket, Version Control, GitLab, Software Versioning, Software Configuration Management, Collaborative Software, IntelliJ IDEA, Integrated Development Environments, Software Development, Code Review, Microsoft Visual Studio, Eclipse (Software), Linux, Open Source Technology, Command-Line Interface
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: JSON, Application Programming Interface (API), Restful API, Web Services, Javascript, Web Applications, Hypertext Markup Language (HTML), Servers, Cascading Style Sheets (CSS)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Javascript, Data Structures, Scripting, Computer Programming
Advanced · Guided Project · Less Than 2 Hours

Skills you'll gain: Program Development, C and C++, C++ (Programming Language), Object Oriented Programming (OOP), Computer Programming, Development Environment, Software Development, Computer Science
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: React.js, JavaScript Frameworks, Data Persistence, Javascript, Context Management, Web Development
Intermediate · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: TypeScript, Javascript, React.js, Debugging, Integrated Development Environments, Web Development Tools
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Application Programming Interface (API), Simple Object Access Protocol (SOAP), Application Deployment, Development Environment, Hibernate (Java), OAuth, Back-End Web Development, Eclipse (Software)
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Ajax, Object Oriented Programming (OOP), Javascript, JSON, Application Programming Interface (API), Scripting, Software Design Patterns, Data Management, Data Structures, Event-Driven Programming, Data Validation, Prototyping, Computational Logic, Maintainability, Programming Principles, Web Development, Software Development, Debugging, Software Engineering, Performance Tuning
Intermediate · Specialization · 1 - 3 Months

LearnQuest
Skills you'll gain: JUnit, Unit Testing, Software Testing, Mockups, Test Case, Test Driven Development (TDD), Java
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apache Kafka, Command-Line Interface, Apache, Data Pipelines, Java, Enterprise Application Management, Real Time Data, Distributed Computing, Performance Tuning
Intermediate · Course · 3 - 6 Months