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 California San Diego
Skills you'll gain: Data Processing, Data Manipulation, Data Visualization, Interactive Data Visualization, Web Scraping, Data Visualization Software, Pandas (Python Package), Data Science, Data Cleansing, Matplotlib, Data Import/Export, NumPy, Jupyter, JSON, Python Programming
Intermediate · Course · 1 - 3 Months

Wesleyan University
Skills you'll gain: Classification And Regression Tree (CART), Decision Tree Learning, Predictive Modeling, Random Forest Algorithm, Applied Machine Learning, Predictive Analytics, Unsupervised Learning, Machine Learning, Supervised Learning, Data Analysis, Data Mining, Feature Engineering, Exploratory Data Analysis, Regression Analysis, Statistical Analysis, Statistical Methods, Python Programming
Mixed · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Database Design, SQL, Database Management Systems, NoSQL, Database Development, Relational Databases, Data Warehousing, Database Theory, Database Systems, Database Administration, Databases, Database Architecture and Administration, Database Software, Database Management, Data Modeling, Query Languages, MongoDB, Big Data, Data Architecture, Database Application
Build toward a degree
Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Statistical Hypothesis Testing, Descriptive Statistics, Statistical Visualization, Data Transformation, Data Cleansing, Statistical Analysis, Regression Analysis, Probability, Probability Distribution, Sampling (Statistics), Box Plots, Histogram, R Programming, Statistical Methods, Probability & Statistics, Scatter Plots, Microsoft Excel, Statistics, Data Import/Export, Data Analysis
Beginner · Specialization · 3 - 6 Months
University of Michigan
Skills you'll gain: R (Software), Statistical Modeling, Data Visualization, Data Wrangling, Data Manipulation, Correlation Analysis, Histogram, Data Analysis, Statistical Analysis, Biostatistics, Statistics, Statistical Hypothesis Testing, Scripting, Package and Software Management, Predictive Modeling, Risk Analysis, Descriptive Statistics, Data Import/Export
Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Looker (Software), Data Modeling, Dashboard, Database Design, Data Warehousing, Performance Tuning, Business Intelligence Software, SQL, Data Analysis
Intermediate · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Unsupervised Learning, Data Mining, Data Validation, Machine Learning Algorithms, Machine Learning Methods, Statistical Methods, Exploratory Data Analysis, Algorithms
Mixed · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Bioinformatics, Data Analysis Software, R Programming, Statistical Programming, Data Manipulation, Data Structures, Software Installation, Data Import/Export, Data Access
Mixed · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Forecasting, Data Processing, Predictive Modeling, Data Analysis, Risk Modeling, Market Data, Analytics, Regression Analysis, Pandas (Python Package), Python Programming, Probability & Statistics, Probability, Ethical Standards And Conduct
Intermediate · Course · 1 - 3 Months

Fred Hutchinson Cancer Center
Skills you'll gain: Bioinformatics, Molecular Biology, Data Processing, Data Analysis, Data Literacy, Exploratory Data Analysis, Laboratory Research, Metadata Management, Science and Research, R Programming, Spatial Data Analysis, Scientific Methods, Data Collection, Data Quality, Research, Quantitative Research, Informatics, Biology, Laboratory Techniques, Analysis
Intermediate · Specialization · 3 - 6 Months

Wesleyan University
Skills you'll gain: Data Storytelling, Exploratory Data Analysis, Data Analysis, Data Visualization, Analytical Skills, Report Writing, Data Science, Data Management, Big Data, Statistical Analysis, Real Time Data, Research, Research Design
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Apache Hadoop, Apache Hive, Big Data, Database Design, Extensible Markup Language (XML), Databases, JSON, Data Processing, Data Warehousing, Distributed Computing, Data Analysis, Scalability, Case Studies, Analytics, Data Pipelines, Extract, Transform, Load, Query Languages, Social Media, Data Cleansing, Data Integration
Intermediate · Specialization · 3 - 6 Months