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: Distributed Computing, Java, Middleware, NoSQL, Event-Driven Programming, Databases, Software Architecture, Servers, Web Services, Microservices, Scalability, Transaction Processing
Intermediate · Course · 1 - 3 Months

Skills you'll gain: PostgreSQL, Performance Tuning, Database Management, Google Cloud Platform, Operational Databases, SQL, Database Application, Data Management, Data Analysis
Beginner · Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Database Management, Apache Hadoop, Query Languages, Big Data, Databases, SQL, Data Access, Distributed Computing, Performance Tuning, Data Processing, Data Integrity, Authorization (Computing), Data Storage Technologies, File Systems, Algorithms
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Full-Stack Web Development, Javascript, Web Development Tools, Jest (JavaScript Testing Framework), Web Design and Development, Object Oriented Programming (OOP), Web Development, Application Programming Interface (API), HTML and CSS, Back-End Web Development, Web Applications, JSON, Restful API, Event-Driven Programming, Application Development, Application Deployment, Unit Testing, Programming Principles, Data Structures, Prototyping
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: SQL, Big Data, Data Validation, Query Languages, Data Mining, Business Metrics
Advanced · Project · Less Than 2 Hours

Skills you'll gain: Exploratory Data Analysis, Model Evaluation, Data Preprocessing, Regression Analysis, Applied Machine Learning, Scikit Learn (Machine Learning Library), Data Analysis, Matplotlib, Random Forest Algorithm, Machine Learning, Data Visualization, Decision Tree Learning, Artificial Neural Networks, Deep Learning, Python Programming
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Software Design Patterns, Computational Thinking, Software Design, Algorithms, Program Development, Software Development, Data Structures, Problem Solving, Computer Science, Machine Learning Methods
Advanced · Course · 1 - 4 Weeks

Universitat Politècnica de València
Skills you'll gain: SQL, Relational Databases, Database Management, Databases, Database Design, Database Architecture and Administration, Query Languages, Data Integrity, Secure Coding, Data Manipulation
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: AI Workflows, Artificial Intelligence and Machine Learning (AI/ML), Agentic systems, System Design and Implementation, Unified Modeling Language, Performance Metric, Performance Measurement, Requirements Analysis, Performance Analysis, Model Evaluation, Prototyping, Stakeholder Communications, Simulation and Simulation Software, Benchmarking
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: PHP (Scripting Language), File I/O, Web Applications, Usability, Responsive Web Design, Information Architecture, Hypertext Markup Language (HTML), Front-End Web Development, MySQL, Web Design and Development, User Experience Design, Browser Compatibility, User Interface (UI), HTML and CSS, Verification And Validation, User Interface (UI) Design, Server Side, Semantic Web, Back-End Web Development, Javascript
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: CI/CD, Continuous Integration, GitHub, Continuous Deployment, Git (Version Control System), Development Environment, Docker (Software), Automation, YAML, Application Security, Node.JS
Beginner · Course · 3 - 6 Months

Skills you'll gain: Application Programming Interface (API), Restful API, Web Services, Cloud Services, C# (Programming Language), Server Side, Application Development
Intermediate · Guided Project · Less Than 2 Hours