Data wrangling courses can help you learn data cleaning, transformation techniques, and data integration methods. You can build skills in handling missing values, reshaping datasets, and merging data from multiple sources. Many courses introduce tools such as Python libraries like Pandas and NumPy, as well as SQL for database management, showing how these skills streamline data preparation for analysis and visualization.

Skills you'll gain: Data Analysis Expressions (DAX), Power BI, Pivot Tables And Charts, Microsoft Excel, R Programming, Alteryx, R (Software), Dashboard, Statistical Programming, Data Transformation, Tableau Software, Data Cleansing, Data Visualization Software, Spreadsheet Software, Debugging, Data Visualization, Automation, Python Programming, Data Structures, Statistical Analysis
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Microsoft Excel, Excel Formulas, Spreadsheet Software, Microsoft 365, Analysis, Trend Analysis, User Accounts
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Dashboard Creation, Interactive Data Visualization
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Microsoft Azure, Data Processing, Database Theory, Databases, Data Store, Database Systems, Database Management Systems, Cloud Services, Data Storage, Database Management, Relational Databases, Query Languages, NoSQL, Data Management, Cloud Computing, Data Analysis, Data Visualization Software
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: File I/O, Object Oriented Design, Java Programming, Object Oriented Programming (OOP), Data Structures, Java, Cryptography, Software Engineering, Computer Programming, Algorithms, Encryption, Programming Principles, Data Store, Program Development, Web Analytics and SEO, Data Import/Export, Web Servers
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Calculus, Integral Calculus, Numerical Analysis, Advanced Mathematics, Mathematical Theory & Analysis, Mathematical Modeling, Mathematical Software, Data Analysis, Probability, Geometry, Applied Mathematics, Mechanics, Graphing, Estimation, Probability & Statistics, Exploratory Data Analysis, Physics
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Apache Airflow, Data Warehousing, Data Flow Diagrams (DFDs), Data Lakes, Data Pipelines, Diagram Design, Data Integration, Performance Tuning, Data Governance, Cloud Deployment, Data Management, Data Modeling, Data Mapping, Extract, Transform, Load, Trend Analysis, Service Level Agreement, Systems Integration, SQL, Apache Kafka, Python Programming
Intermediate · Specialization · 3 - 6 Months

University of London
Skills you'll gain: Plot (Graphics), Data Visualization, Data Literacy, Statistical Methods, Data Science, Applied Machine Learning, Unsupervised Learning, Statistics, NumPy, Python Programming, Pandas (Python Package), Data Analysis, Machine Learning Algorithms, Descriptive Statistics, Data Processing, Analytics, Machine Learning, Data Manipulation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Microsoft Copilot, Sales Strategy, Customer Analysis, Sales Enablement, Data Cleansing, Sales Management, Sales, Customer Relationship Management (CRM) Software, Customer Insights, Data Quality, Data Maintenance, Sales Prospecting, Prospecting and Qualification, Customer Data Management, Customer Engagement, AI Personalization, Advanced Analytics, Analytics, Personalized Service, Data Integrity
Beginner · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Extract, Transform, Load, Data-Driven Decision-Making, Amazon Web Services, Business Intelligence, Data Warehousing, Big Data, Databases, NoSQL, Data Analysis, Data Pipelines, Unstructured Data, Data Processing, Cloud API, SQL, Data Storage, Data Architecture, Relational Databases, Data Transformation, Data Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Information Privacy, General Data Protection Regulation (GDPR), AI Security, Responsible AI, Personally Identifiable Information, Legal Technology, Data Security, Data Ethics, Large Language Modeling, LLM Application, Business Ethics, Data Governance, ChatGPT, AI literacy, Prompt Engineering, Generative AI, Regulatory Compliance, Cybersecurity, Risk Analysis, Governance
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Data Structures, Javascript, Application Programming Interface (API), Computer Programming, Data Management
Intermediate · Course · 1 - 4 Weeks