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: Security Controls, Scalability, Azure Synapse Analytics, Data Pipelines, Databases, Microsoft Azure, Data Governance, Extract, Transform, Load, Data Lakes, Databricks, NoSQL, Data Processing, Cloud Management, Big Data, Apache Spark, Dashboard Creation, Interactive Data Visualization, Large Language Modeling, Applied Machine Learning, Model Training
★ 4 (6) · Intermediate · Professional Certificate · 3 - 6 Months

Tsinghua University
Skills you'll gain: Data Structures, Algorithms, Graph Theory, Computational Thinking, Programming Principles, Database Management Systems, System Design and Implementation, Theoretical Computer Science, Computer Programming, Computer Science
★ 2.9 (40) · Intermediate · Specialization · 3 - 6 Months

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Exploitation techniques, Authentications, Vulnerability Assessments, Application Security, Vulnerability Management, Event Monitoring, Security Controls, Data Integrity, Continuous Monitoring, Secure Coding, System Monitoring, Patch Management, Identity and Access Management, Multi-Factor Authentication, Authorization (Computing), Cryptography, Extensible Markup Language (XML), System Configuration, Incident Response
★ 4.5 (126) · Intermediate · Specialization · 3 - 6 Months

Pragmatic AI Labs
Skills you'll gain: Prompt Engineering, Hugging Face, Fine-tuning, Model Deployment, MLOps (Machine Learning Operations), CI/CD, Continuous Deployment, Model Evaluation, Applied Machine Learning, Continuous Integration, Transfer Learning, Agentic Workflows, Data Preprocessing, Generative AI Agents, Model Training, Large Language Modeling, Image Analysis, Rust (Programming Language), Model Optimization, AI Orchestration
Beginner · Specialization · 3 - 6 Months

Logical Operations
Skills you'll gain: Excel Macros, Microsoft Excel, Excel Formulas, Debugging, Visual Basic (Programming Language), Business Process Automation, Data Transformation, Data Import/Export, File I/O, Data Wrangling, Extensible Markup Language (XML), Spreadsheet Software, Automation, Microsoft 365, Microsoft Office, Data Science, Query Languages, File Management, Computer Programming, Performance Improvement
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Object Oriented Programming (OOP), File I/O, Data Persistence, Object Oriented Design, Java, Java Programming, Code Reusability, Maintainability, Software Design, Application Development, Computer Programming, Data Import/Export, Data Management, Data Validation
★ 4.3 (24) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Warehousing, IBM Cognos Analytics, Extract, Transform, Load, Database Architecture and Administration, Data Visualization, Database Design, Dashboard Creation, Data Modeling, MySQL, Dashboard, Business Intelligence, Database Management, Data Architecture, Data Pipelines, PostgreSQL, Statistical Reporting, Shell Script, SQL, Data Transformation, Data Import/Export
★ 4.8 (29) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Core Data (Software), Restful API, Apple iOS, iOS Development, JSON, Swift Programming, Application Programming Interface (API), Data Import/Export, Mobile Development, Application Development, Data Persistence, Authentications
★ 4 (52) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Model Deployment, Apache Spark, Data Pipelines, PySpark, Model Training, Applied Machine Learning, Model Optimization, Machine Learning Algorithms, Docker (Software), Machine Learning, Data Science, Python Programming, Design Thinking
★ 4.3 (65) · Advanced · Course · 1 - 4 Weeks
Skills you'll gain: Django (Web Framework), Frontend Integration, React.js, API Testing, Authentications, Secure Coding, Performance Tuning, Scalability, JavaScript Frameworks, Test Tools, Unit Testing, Development Testing, Software Testing, Restful API, Javascript, Python Programming
★ 4.9 (29) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Eclipse (Software), Integrated Development Environments, Java Programming, Java, Object Oriented Programming (OOP), Development Environment, Programming Principles, Computer Programming Tools, Software Development Tools, Software Installation, Debugging, Computer Programming, Computing Platforms
★ 4.5 (14) · Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Data Preprocessing, Applied Machine Learning, Data Processing, Dimensionality Reduction, Data Cleansing, Machine Learning Algorithms, Data Transformation, Machine Learning Methods, Artificial Neural Networks, Random Forest Algorithm, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning, Unsupervised Learning, Supervised Learning, Classification Algorithms, Predictive Modeling, Python Programming
★ 3.9 (15) · Intermediate · Course · 1 - 4 Weeks