
Codio
Skills you'll gain: Matplotlib, Statistical Hypothesis Testing, Data Analysis, Statistical Analysis, Data Import/Export, Data Cleansing, Probability & Statistics, Data Manipulation, Descriptive Statistics, Pandas (Python Package), Exploratory Data Analysis, Correlation Analysis, Python Programming, Programming Principles, Computer Programming, Computational Logic
Mixed · Course · 1 - 3 Months

Scrimba
Skills you'll gain: UI Components, JavaScript Frameworks, Web Frameworks, Event-Driven Programming, Data Import/Export, Web Applications, Front-End Web Development, Javascript, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Unit Testing, JUnit, Integration Testing, Restful API, Test Driven Development (TDD), Software Testing, Java Programming, Hibernate (Java), Verification And Validation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: IntelliJ IDEA, Debugging, Software Design, User Interface (UI), Integrated Development Environments, Java, Program Development, Application Design, Object Oriented Programming (OOP), User Interface (UI) Design, Data Validation, Software Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cucumber (Software), Behavior-Driven Development, Selenium (Software), Gherkin (Scripting Language), Test Automation, JUnit, Software Testing, Apache Maven, Test Data, Test Case, Scenario Testing, User Story, Java, Maintainability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Restful API, Web Applications, Cascading Style Sheets (CSS), Application Programming Interface (API), Web Services, HTML and CSS, Back-End Web Development, JSON, Frontend Integration, Javascript, Software Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Test Tools, Test Automation, Software Testing, Test Script Development, Test Case, Regression Testing, Test Execution Engine, Javascript and jQuery, Browser Compatibility, Automation, Software Design Patterns, UI Components, Java
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: IntelliJ IDEA, Apache Maven, Integrated Development Environments, Build Tools, Software Development Tools, Version Control, Git (Version Control System), Development Environment, Computer Graphics, Debugging, Scripting Languages, Visualization (Computer Graphics), Databases, Relational Databases
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Unix Shell, Unix, Unix Commands, Shell Script, Linux, Linux Administration, Authorization (Computing), System Configuration, Operating System Administration, User Accounts, Security Controls, File Management, Identity and Access Management, Systems Administration
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: User Accounts, Linux, Linux Administration, Shell Script, Linux Commands, Command-Line Interface, Operating System Administration, System Monitoring, Unix Commands, File Systems, Unix, File Management, Software Installation, Virtual Machines, System Configuration, Operating Systems, Network Troubleshooting
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Linux Commands, Linux, OS Process Management, Command-Line Interface, Unix Commands, User Accounts, Bash (Scripting Language), Shell Script, Linux Administration, Unix Shell, File Management, Remote Access Systems, Scripting, DevOps
Beginner · Course · 3 - 6 Months

Skills you'll gain: Server Side, Web Development, Web Scraping, Web Applications, Back-End Web Development, Integration Testing, Python Programming, Web Services, Extensible Markup Language (XML), Package and Software Management, Development Testing, Unit Testing, Performance Tuning, Cross Platform Development, Hypertext Markup Language (HTML), Debugging
Mixed · Course · 1 - 4 Weeks