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.

University of California, Davis
Skills you'll gain: Version Control, Hypertext Markup Language (HTML), GitHub, Git (Version Control System), HTML and CSS, Cascading Style Sheets (CSS), Web Design and Development, Web Development, Web Design, Image Quality, Web Content, Front-End Web Development, Web Servers, Semantic Web, Cloud Hosting
Beginner · Course · 1 - 4 Weeks
LearnQuest
Skills you'll gain: Oracle SQL Developer, SQL, Oracle Databases, PL/SQL, Database Design, Database Theory, Database Management Systems, Relational Databases, Database Management, Databases, Database Architecture and Administration, Data Storage, Transaction Processing, Stored Procedure, Data Management, Query Languages, Network Architecture, Diagram Design, Command-Line Interface, Data Modeling
Beginner · Specialization · 3 - 6 Months

Princeton University
Skills you'll gain: Graph Theory, Data Structures, Algorithms, Theoretical Computer Science, Operations Research, Computational Thinking, Computer Programming, Network Routing, Java Programming, Linear Algebra
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Object Oriented Programming (OOP), File I/O, Data Persistence, Object Oriented Design, Java, Java Programming, File Management, Application Development, Maintainability, Software Design, Programming Principles, Development Environment, Program Development, Computer Programming, Data Structures, Data Management, Integrated Development Environments, Debugging, Data Validation
Beginner · Specialization · 3 - 6 Months
Corporate Finance Institute
Skills you'll gain: Data Analysis Expressions (DAX), Power BI, Snowflake Schema, Data Modeling, SQL, Dashboard, Microsoft Excel, Business Intelligence, Excel Formulas, Pivot Tables And Charts, Data Import/Export, Business Reporting, Databases, Interactive Data Visualization, Data Storytelling, Financial Statements, Data Manipulation, Data Transformation, Financial Analysis, Data Visualization
Beginner · Specialization · 3 - 6 Months

National Taiwan University
Skills you'll gain: Information Systems, Information Management, Business Logic, Data Structures, Transportation Operations, Information Technology, Production Planning, Operations Management, Business Operations, Inventory Control, Logistics, Algorithms, Computer Programming, Python Programming, Decision Making, Software Installation
Beginner · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Software Design Patterns, Requirements Analysis, White-Box Testing, Software Architecture, Acceptance Testing, Software Development Methodologies, Unified Modeling Language, Software Development Life Cycle, Configuration Management, Debugging, Software Design, Process Driven Development, Software Engineering, Software Testing, Object Oriented Design, Functional Requirement, Data Modeling, Systems Design, Project Management, Project Planning
Intermediate · Specialization · 3 - 6 Months
Amazon Web Services
Skills you'll gain: Serverless Computing, AWS Identity and Access Management (IAM), Event-Driven Programming, Solution Architecture, Cloud Computing Architecture, Amazon Web Services, Software Architecture, API Gateway, Hybrid Cloud Computing, Cloud Management, Multi-Tenant Cloud Environments, Performance Tuning, Amazon DynamoDB, Amazon S3, Cloud Security, AWS Kinesis, Data Analysis, Containerization, Data Visualization
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: iOS Development, Apple iOS, Apple Xcode, Mobile Development, Swift Programming, Mobile Development Tools, Objective-C (Programming Language), User Interface (UI), Application Development, UI Components, Integrated Development Environments, Development Environment, Storyboarding
Beginner · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Apache Kafka, Apache Spark, Apache Hadoop, Distributed Computing, Dataflow, Java Programming, Java, Software Architecture, Systems Architecture, Scala Programming, Data Structures, System Programming, Programming Principles, Servers, Application Frameworks, Debugging, Algorithms, Performance Tuning, Functional Design, Performance Testing
Intermediate · Specialization · 3 - 6 Months

University of California, Santa Cruz
Skills you'll gain: C++ (Programming Language), Software Design Patterns, Object Oriented Programming (OOP), C (Programming Language), Debugging, Algorithms, Graph Theory, Artificial Intelligence, Data Structures, Game Design
Intermediate · Course · 1 - 3 Months

Skills you'll gain: AI Orchestration, AI Workflows, LangChain, Agentic Workflows, Tool Calling, LangGraph, LLM Application, Agentic systems, Generative AI Agents, Responsible AI, Retrieval-Augmented Generation, Artificial Intelligence and Machine Learning (AI/ML), Generative AI, Application Design, Prompt Engineering, Large Language Modeling, Context Management, Software Design Patterns, Software Development, Python Programming
Intermediate · Specialization · 1 - 3 Months