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: JSON, jQuery, Browser Compatibility, Event-Driven Programming, UI Components
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Big Data, Data Import/Export, Data Analysis, Analytics, Google Cloud Platform, Query Languages, Cloud Computing
Beginner · Project · Less Than 2 Hours

Skills you'll gain: COBOL (Programming Language), Job Control Language (JCL), IBM DB2, z/OS, Mainframe Computing, Relational Databases, File Management, Data Management, Databases, Database Management Systems, File Systems, Programming Principles, Command-Line Interface, Computer Programming
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Analysis Expressions (DAX), Power BI, Business Analysis, Financial Data, Business Intelligence, Data Modeling, Financial Analysis, Time Series Analysis and Forecasting, Data Visualization, Data Import/Export
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Matplotlib, Statistical Modeling, Descriptive Statistics
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Data Storytelling, Pandas (Python Package), Data Analysis, Data-Driven Decision-Making, Exploratory Data Analysis, Analytical Skills, Business Analysis, Data Manipulation, Data Cleansing, Python Programming, Data Import/Export, Promotional Strategies
Beginner · Guided Project · Less Than 2 Hours

Dartmouth College
Skills you'll gain: C (Programming Language), Embedded Systems, Data Structures, System Programming, Algorithms, Computer Programming, Linux, Computer Programming Tools, Debugging
Beginner · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Extract, Transform, Load, Exploratory Data Analysis, Business Analytics, Data Presentation, Analytical Skills, Business Intelligence, Analytics, Data Analysis, Data Visualization Software, Data Processing, Data Transformation, Data Cleansing, Pandas (Python Package), Data Manipulation, Python Programming
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Visualization, Data-Driven Decision-Making, Data Ethics, R (Software), Data Science, Data Governance, Advanced Analytics
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Computational Thinking, Algorithms, Graph Theory, Data Structures, Computer Programming, C++ (Programming Language), Object Oriented Programming (OOP)
Intermediate · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Data Analysis Expressions (DAX), Microsoft Excel, Excel Formulas, Pivot Tables And Charts, Dashboard, Data Processing, Data Presentation, Data Transformation, Data Analysis, Data Visualization, Barcoding, Microsoft PowerPoint, Data Import/Export
Beginner · Course · 1 - 4 Weeks

Banco Interamericano de Desarrollo
Skills you'll gain: Data Ethics, Policy Development, Data-Driven Decision-Making, Data Analysis, Data Collection, Policy Analysis, Data Quality, Surveys, Program Evaluation, Research, Statistical Analysis, Research Design
Beginner · Course · 1 - 3 Months