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.

Johns Hopkins University
Skills you'll gain: Statistical Modeling, Exploratory Data Analysis, R Programming, Predictive Modeling, Sampling (Statistics), Statistical Hypothesis Testing, Tidyverse (R Package), Data Analysis, Data Modeling, Data-Driven Decision-Making, Regression Analysis, Data Science, Statistical Inference, Predictive Analytics, Rmarkdown, Statistical Methods, Applied Machine Learning, Model Evaluation, Machine Learning
Mixed · Course · 1 - 3 Months

Skills you'll gain: Data Storytelling, Data Visualization, Exploratory Data Analysis, Data Visualization Software, Data Presentation, Data Ethics, Tableau Software, Data Analysis, Data Cleansing, Data Manipulation, Data Transformation, Data Preprocessing, Data Wrangling, Technical Communication, Data Quality, Data Validation, Python Programming
Advanced · Course · 1 - 3 Months

Skills you'll gain: Dashboard, Data Storytelling, Tableau Software, Dashboard Creation, Peer Review, Data Presentation, Presentations, Data Visualization, Interactive Data Visualization, Plot (Graphics), Data Cleansing, Business Intelligence, Real Time Data, Data Manipulation, Business Intelligence Software, Data Quality, Data Transformation, Data Integration, Data Analysis, Data Visualization Software
Advanced · Specialization · 1 - 3 Months

LearnQuest
Skills you'll gain: Data Visualization, Data Persistence, Big Data, Analytics, Data Processing, Data Storage Technologies, Data Strategy, Data Storage, Data Integrity, Data Management, Data Infrastructure, Unstructured Data, Data Import/Export, Real Time Data, Data Collection
Mixed · Course · 1 - 4 Weeks

Maven Analytics
Skills you'll gain: Prompt Engineering, Generative AI, Google Gemini, ChatGPT, Data Analysis Expressions (DAX), Power BI, Deep Learning, Excel Formulas, Analytics, Google Sheets, AI literacy, Microsoft Excel, Artificial Intelligence, Data Analysis, Python Programming, SQL, Business Intelligence, Data Science, Debugging
Beginner · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Probability, Probability & Statistics, Sampling (Statistics), Probability Distribution, Statistics, Data Science, Statistical Inference, Statistical Methods, Descriptive Statistics, Statistical Analysis, General Mathematics, Algebra
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Project Scoping, Business Priorities, Business Analysis, Stakeholder Engagement, Stakeholder Management, Business Solutions, Business, Data Science, Business Process, Data-Driven Decision-Making, Stakeholder Communications, Data Literacy, Scope Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Extract, Transform, Load, Power BI, Data Integrity, Data Validation, Data Transformation, Data Cleansing, Data Storage, Data Quality, Data Analysis, Data Integration, Data Import/Export
Beginner · 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, Business Intelligence, Database Management, Data Architecture, Data Visualization Software, Data Pipelines, PostgreSQL, Shell Script, Data Transformation, Business Metrics
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Data Warehousing, Data Architecture, Data Store, Data Infrastructure, Data Storage, Extract, Transform, Load, Database Architecture and Administration, Data Integration, Cloud Storage, Data Mart, Data Storage Technologies, Database Design, Operational Data Store, Database Systems, Query Languages, Metadata Management, Data Transformation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Tableau Software, Dashboard, Data Visualization Software, Data Visualization, R Programming, Alteryx, R (Software), Statistical Programming, Data Presentation, Data Literacy, Statistical Visualization, Interactive Data Visualization, Data Cleansing, Dashboard Creation, Plot (Graphics), Data Storytelling, Data Analysis Software, Data Structures, Statistical Analysis, Workflow Management
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Data Pipelines, Apache Airflow, Data Integration, Cloud Deployment, Dataflow, Extract, Transform, Load, Cloud Computing, Data Infrastructure, Data Processing, Data Warehousing, Maintainability
Beginner · Course · 1 - 4 Weeks