
Scrimba
Skills you'll gain: HTML and CSS, Mobile Development, ChatGPT, GitHub, Front-End Web Development, Javascript, Application Deployment, Web Development, Responsive Web Design, Video Game Development, Application Development, Cascading Style Sheets (CSS), Computer Programming, Database Application, Machine Learning
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Continuous Integration, Debugging, Software Development Tools, Software Engineering Tools, Performance Tuning, Performance Testing
Intermediate · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Java Programming, Java, Data Structures, System Programming, Programming Principles, Debugging, Algorithms, Performance Testing
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Ajax, Web Design, Java Platform Enterprise Edition (J2EE), Cascading Style Sheets (CSS), Web Applications, Scripting, Javascript and jQuery, Web Development, Java, Hypertext Markup Language (HTML), Middleware, Model View Controller, Hibernate (Java), Service Oriented Architecture
Intermediate · Course · 1 - 3 Months

Rice University
Skills you'll gain: Dataflow, Java, Distributed Computing, Programming Principles, Application Frameworks, Algorithms, Performance Tuning, Functional Design, Computer Science
Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Debugging, Object Oriented Programming (OOP), Java, Teaching, Programming Principles, Java Programming, Program Development, Pedagogy, Computer Programming, Integrated Development Environments, Computational Thinking, Education Software and Technology, Cultural Responsiveness, Digital pedagogy, Test Case, Computational Logic, Pseudocode, Algorithms, Data Structures
Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Java Platform Enterprise Edition (J2EE), Scripting, Java, Server Side, Hypertext Markup Language (HTML), Web Applications, Model View Controller
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Terraform, Infrastructure as Code (IaC), Cloud Infrastructure, Cloud Management, Google Cloud Platform, Cloud Deployment
Beginner · Project · Less Than 2 Hours

Coursera
Skills you'll gain: Unit Testing, JUnit, Test Case, Testability, Software Testing, Software Development, Software Engineering, Java Programming, Java
Beginner · Guided Project · Less Than 2 Hours

Infosec
Skills you'll gain: Secure Coding, Computer Programming Tools, C and C++, Application Security, System Programming, C++ (Programming Language), C (Programming Language), Software Development Tools, Exploit development, Debugging, Interoperability, Unix, Embedded Systems, Vulnerability Assessments, Unix Commands, File I/O, Operating Systems, Data Security, Linux, Microsoft Windows
Intermediate · Specialization · 3 - 6 Months

LearnKartS
Skills you'll gain: JUnit, File I/O, Java Programming, Object Oriented Programming (OOP), Java, Unit Testing, Program Development, Maintainability, Software Development, Secure Coding, Software Testing, Programming Principles, Computer Programming, Test Case, Application Development, Authentications, Application Security, Application Design, Debugging, Mathematical Software
Beginner · Specialization · 1 - 3 Months

Logical Operations
Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Python Programming, Computer Programming, Code Review, Programming Principles, Maintainability, Scripting, Scripting Languages, Software Development
Mixed · Course · 1 - 4 Weeks