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.

Macquarie University
Skills you'll gain: Sample Size Determination, Statistical Hypothesis Testing, Statistics, Descriptive Statistics, Probability & Statistics, Microsoft Excel, Data Analysis, Statistical Analysis, Statistical Inference, Statistical Methods, Spreadsheet Software, Sampling (Statistics), Data-Driven Decision-Making, Box Plots, Data Presentation, Probability Distribution, Descriptive Analytics, Data Visualization Software
★ 4.8 (78) · Beginner · Course · 1 - 3 Months

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

Coursera
Skills you'll gain: Jupyter, Timelines, Microsoft Excel, Spreadsheet Software, Project Schedules, Data Import/Export, Python Programming, Email Automation, Data Literacy, Data Structures, Data Analysis, Data Manipulation
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Statistical Visualization, Data Presentation, Data Science, Computer Programming
Beginner · Course · 1 - 3 Months

Skills you'll gain: PySpark, Apache Spark, Customer Analysis, Big Data, Data Processing, Advanced Analytics, Statistical Modeling, Text Mining, Customer Insights, Risk Modeling, Data Preprocessing, Unstructured Data, Simulation and Simulation Software, Data Manipulation, Marketing Analytics
★ 4.6 (14) · Mixed · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Database Management Systems, Database Management, Database Administration, Database Software, Database Development, Database Design, Database Architecture and Administration, Database Application, Relational Databases, SQL, Data Modeling, Network Model, Query Languages, Data Maintenance, Data Integrity, Data Manipulation, Data Security, Diagram Design
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Science, Statistical Inference, Machine Learning Methods, Data Visualization, Pandas (Python Package), Probability & Statistics, Statistical Methods, Statistics, Regression Analysis, Applied Machine Learning, Apache Hadoop, Big Data, Machine Learning Algorithms, Data Mining, Data Analysis, Python Programming, Data Mapping, Object Oriented Programming (OOP), JavaScript Frameworks, HTML and CSS
Intermediate · Course · 1 - 3 Months

Starweaver
Skills you'll gain: Data Warehousing, Data Architecture, SQL, Business Intelligence, Data Pipelines, Data Modeling, Data Management, Data-Driven Decision-Making, Query Languages, Data Transformation, Performance Tuning, Cloud Computing, Cloud Management, Python Programming
★ 4.3 (7) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Android Development, Kotlin, API Design, Android Studio, Application Programming Interface (API), Android Jetpack, Mobile Development, Database Application, Database Management, Data Persistence, Databases, JSON, Database Development, Web Applications, Back-End Web Development, SQL, Data Access, Relational Databases
★ 4.7 (61) · Intermediate · Course · 1 - 3 Months

Duke University
Skills you'll gain: PySpark, Snowflake Schema, Databricks, Data Pipelines, Apache Spark, MLOps (Machine Learning Operations), Apache Hadoop, Data Architecture, Big Data, Data Warehousing, Data Quality, Data Integration, Data Processing, DevOps, Model Training, Model Deployment, Distributed Computing, Data Transformation, SQL, Python Programming
★ 3.9 (71) · Advanced · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Social Media Analytics, Data Presentation, Business Intelligence, Predictive Modeling, Dashboard Creation, Predictive Analytics, Customer Analysis, Case Studies, Advanced Analytics
Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Data Literacy, Statistical Hypothesis Testing, Scientific Methods, Data Analysis, Statistical Reporting, Experimentation, Science and Research, Research Design, Analytical Skills, General Science and Research, Research, Peer Review, Probability & Statistics, Journalism, Statistical Inference, Statistical Methods, Media and Communications, Research Methodologies
★ 4.6 (17) · Beginner · Course · 1 - 4 Weeks