Language courses can help you learn grammar, vocabulary development, pronunciation techniques, and conversational skills. You can build skills in writing clearly, understanding cultural nuances, and using language for specific purposes like business or travel. Many courses introduce tools such as language learning apps, online dictionaries, and pronunciation software, which enhance your ability to practice and apply what you've learned in everyday situations.

Skills you'll gain: JUnit, Apache Maven, Model View Controller, Unit Testing, Frontend Integration, Spring Boot, Restful API, Data Persistence, Web Services, Software Testing, Java Programming, Object-Relational Mapping, Java, Back-End Web Development, Secure Coding, Authentications, Data Modeling, Business Logic
Mixed · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Relational Databases, SQL, Databases, Data Access, Data Manipulation, Database Development, Query Languages
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Cleansing, SQL, Data Quality, Data Transformation, Big Data, Metadata Management, Query Languages, Data Access, Google Cloud Platform, Data Analysis, Google Analytics
Beginner · Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: API Gateway, Application Programming Interface (API), Capacity Management, Kubernetes, Istio, Google Cloud Platform, Scalability, Hybrid Cloud Computing, Security Controls, Apache Cassandra, Proxy Servers, Data Security, Cloud Deployment, Application Deployment, Role-Based Access Control (RBAC), Development Environment, Public Key Infrastructure, Encryption, YAML, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Spring Boot, React.js, Spring Framework, Object-Relational Mapping, Frontend Integration, Restful API, YAML, Data Access, Database Application, Data Persistence, Web Applications, JavaScript Frameworks, Back-End Web Development, Databases, Application Performance Management, Configuration Management, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Eclipse (Software), Java, Integrated Development Environments, Java Programming, Code Reusability, Functional Design
Intermediate · Guided Project · Less Than 2 Hours

JetBrains
Skills you'll gain: Application Development, Application Deployment, Generative AI Agents, Large Language Modeling, Software Development Tools, LLM Application, AI literacy, IntelliJ IDEA, Agentic Workflows, Artificial Intelligence and Machine Learning (AI/ML), Generative AI, Integrated Development Environments, Agentic systems, Code Review, Software Development, Software Development Life Cycle
Beginner · Course · 1 - 3 Months

Skills you'll gain: Extensible Markup Language (XML), Ajax, Extensible Languages and XML, Web Design, Web Design and Development, Java Platform Enterprise Edition (J2EE), HTML and CSS, jQuery, Cascading Style Sheets (CSS), Data Validation, Web Applications, Responsive Web Design, Scripting Languages, Scripting, Javascript and jQuery, Web Development, Android Development, Hypertext Markup Language (HTML), Visualization (Computer Graphics), Java
Beginner · Specialization · 3 - 6 Months

Pearson
Skills you'll gain: Linux Administration, Containerization, Linux, Memory Management, Linux Commands, OS Process Management, File Systems, System Programming, Operating Systems, Data Storage, Cloud Storage, Data Storage Technologies, General Networking, Network Administration, Performance Tuning, System Configuration, C (Programming Language), Git (Version Control System)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Javascript, Web Applications, HTML and CSS, Animations, Hypertext Markup Language (HTML), Event-Driven Programming, Cascading Style Sheets (CSS), Web Design and Development, Animation and Game Design, Application Development, Event Monitoring
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Data Modeling, Oracle SQL Developer, Relational Databases, Database Design, Databases, SQL, Oracle Databases, Query Languages, Software Installation
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Responsive Web Design, HTML and CSS, Cascading Style Sheets (CSS), Web Design, Web Design and Development, Web Development, UI Components, Interactive Design, Hypertext Markup Language (HTML), Typography, Design Strategies, Aesthetics
Intermediate · Course · 1 - 3 Months