Data cleaning courses can help you learn techniques for identifying and correcting errors in datasets, handling missing values, and standardizing data formats. You can build skills in data validation, outlier detection, and transforming raw data into a usable format. Many courses introduce tools like Python libraries such as Pandas and NumPy, as well as software like OpenRefine, that support executing data cleaning tasks efficiently and ensuring data quality for analysis.

Skills you'll gain: Data Visualization, Data Presentation, Regression Analysis, Advanced Analytics, Statistical Analysis, Data Analysis, Statistical Modeling, Applied Machine Learning, Statistical Methods, Analytical Skills, Data Science, Predictive Modeling, Machine Learning Methods, Python Programming, AI literacy, Machine Learning, Portfolio Management
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Data Storage
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Ggplot2, Plot (Graphics), Data Visualization Software, Data Visualization, Visualization (Computer Graphics), Interactive Data Visualization, Scatter Plots, Statistical Visualization, Histogram, Graphic and Visual Design, R Programming, Graphical Tools, R (Software), Data Mapping, Geospatial Information and Technology, Geospatial Mapping, Geographic Information Systems
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: PySpark, Matplotlib, Apache Spark, Big Data, Data Processing, Distributed Computing, Data Management, Data Visualization, Data Presentation, Data Analysis, Data Manipulation, Data Cleansing, Query Languages, Python Programming
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Structures, Algorithms, Python Programming, Computer Programming, Geometry, Data Manipulation, Data Management, Data Analysis, Applied Mathematics
Intermediate · Course · 1 - 3 Months

O.P. Jindal Global University
Skills you'll gain: Big Data, Apache Spark, Apache Hadoop, Apache Hive, NoSQL, Database Systems, Data Mining, Cloud Applications, Cloud Solutions, Real Time Data, Cloud Computing, Data Processing, Query Languages, Distributed Computing, Applied Machine Learning, Scripting Languages, Data Manipulation
Build toward a degree
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Warehousing, Extract, Transform, Load, Data Pipelines, Data Integration, Data Processing, Data Quality
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Data Visualization, Data Visualization Software, Interactive Data Visualization, Visualization (Computer Graphics), User Centered Design, Data Presentation, Usability, Human Centered Design, Design Research, User Research, Graphic and Visual Design, Usability Testing, Quantitative Research, Design Elements And Principles
Build toward a degree
Intermediate · Course · 1 - 4 Weeks
Duke University
Skills you'll gain: Database Design, MySQL, Relational Databases, SQL, Database Development, Database Management, Data Modeling, Database Systems, Query Languages, Databases, Business Analytics, Big Data, Business Analysis, Data Analysis, Data Management
Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Predictive Modeling, Data Visualization, Predictive Analytics, Statistical Analysis, Data Manipulation, Data Analysis, Data Science, Statistical Methods, Data Visualization Software, Statistics, Data Wrangling, Data Cleansing, Analytics, Data Preprocessing, Data-Driven Decision-Making, Business Analytics, Model Evaluation, Data Collection, Machine Learning
Beginner · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Data Integration, Health Informatics, Data Dictionary, Health Systems, Metadata Management, Health Care, Data Mapping, Healthcare Industry Knowledge, Value-Based Care, Health Information Management, Taxonomy, Care Coordination, Health Policy, Data Literacy, Clinical Data Management, Clinical Informatics, ICD Coding (ICD-9/ICD-10), Health Care Procedure and Regulation, Data Quality, Medical Terminology
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Data Lakes, Data Warehousing, Apache Hive, Data Pipelines, Analysis, Automation
Advanced · Course · 1 - 4 Weeks