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.

University of London
Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), C and C++, Object Oriented Design, Programming Principles, Data Structures, Data Modeling, Data Management
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: SQL, MySQL, Data Manipulation, Data Access, PostgreSQL, Data Management
Intermediate · Guided Project · Less Than 2 Hours

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

Coursera
Skills you'll gain: TypeScript, Programming Principles, Web Development Tools, Javascript, Web Language
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Storytelling, Data Presentation, Dashboard, Interactive Data Visualization, Data Visualization, Infographics, Data Visualization Software, Business Reporting, Data Ethics, Storytelling, Data-Driven Decision-Making, Generative AI, Responsible AI, Data Analysis, Artificial Intelligence
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: NumPy, Data Structures, Data Analysis, Object Oriented Programming (OOP), Image Analysis, Data Processing, Data Science, Data Manipulation, Big Data, Performance Tuning, Python Programming
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: JSON, Apple iOS, Database Application, Mobile Development, Application Programming Interface (API), Swift Programming, Data Storage, Model View Controller, Data Modeling, Data Integration, UI Components, Network Protocols, User Interface (UI)
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Data Storytelling, Interactive Data Visualization, Data Presentation, Data Visualization Software, Scatter Plots, Infographics, Storytelling, Geospatial Mapping, Box Plots, Histogram, Data Ethics, Design Elements And Principles
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Visualization Software, Data Modeling, Dashboard, Interactive Data Visualization, Data Presentation, Data Manipulation, Data Transformation, Data Cleansing, Data Import/Export, Data Analysis, Key Performance Indicators (KPIs)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Modeling, Classification And Regression Tree (CART), Data Validation, Statistical Analysis, Application Deployment
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Data Visualization, Data-Driven Decision-Making, Data Visualization Software, Data Literacy, Interactive Data Visualization, Business Intelligence, Data Storytelling, Data Presentation, Dashboard
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Matplotlib, Scientific Visualization, Visualization (Computer Graphics), Plot (Graphics), Statistical Visualization, Data Visualization Software, Scatter Plots, Typography, Python Programming
Mixed · Course · 1 - 4 Weeks