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 Pennsylvania
Skills you'll gain: SQL, Data Analysis, Seaborn, Exploratory Data Analysis, Analytics, Data Visualization, Database Management, Query Languages, Data Visualization Software, Matplotlib, Data Storage, Pandas (Python Package), Big Data, Data Science, Relational Databases, Data Management, Data Manipulation, Data Cleansing, NumPy
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: IntelliJ IDEA, Integrated Development Environments, Software Development Tools, Development Environment, Scala Programming, Build Tools, Program Development, Software Development, Software Engineering
Beginner · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: OpenAI API, OpenAI, AI Workflows, LLM Application, AI Integrations, Generative AI Agents, AI Personalization, Agentic Workflows, Application Programming Interface (API), Performance Testing, Artificial Intelligence, Context Management, Application Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Visualization, Data-Driven Decision-Making, Data Management, Data Manipulation, SQL
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Jest (JavaScript Testing Framework), User Acceptance Testing (UAT), Cucumber (Software), Postman API Platform, Software Testing, Behavior-Driven Development, Selenium (Software), Test Driven Development (TDD), Performance Stress Testing, API Testing, Unit Testing, Performance Testing, Application Programming Interface (API), User Interface (UI), Javascript
Beginner · 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

Universitat Politècnica de València
Skills you'll gain: Prompt Engineering, ChatGPT, Microsoft Copilot, AI literacy, LLM Application, OpenAI, Deepseek, Large Language Modeling, Education Software and Technology, Generative AI Agents, Token Optimization, Artificial Intelligence, Generative AI, AI Personalization, Excel Macros, Productivity, Excel Formulas
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Embeddings, Retrieval-Augmented Generation, Model Training, Large Language Modeling, Natural Language Processing
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Frontend Integration, Spring Boot, Configuration Management, API Gateway, JUnit, Java Programming, Enterprise Application Management, Java, Test Tools, Unit Testing, Application Programming Interface (API), Development Testing, Software Design Patterns, Authentications
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: JSON, Application Programming Interface (API), Application Development, Data Access, Restful API, Python Programming, Program Development, User Interface (UI)
Intermediate · Guided Project · Less Than 2 Hours

Howard University
Skills you'll gain: Linear Algebra, Applied Mathematics, Algebra, Python Programming
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Data Pipelines, Microsoft SQL Servers, Microsoft Azure, Database Development, Data Warehousing, SQL, Data Integration, Data Maintenance, Extract, Transform, Load
Intermediate · Guided Project · Less Than 2 Hours