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.

Johns Hopkins University
Skills you'll gain: Statistical Inference, Statistical Hypothesis Testing, Probability & Statistics, Statistics, Probability, Bayesian Statistics, Statistical Methods, Statistical Modeling, Statistical Analysis, Probability Distribution, Sampling (Statistics), Sample Size Determination, Data Analysis
★ 4.2 (4.5K) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: AI literacy, Product Planning, Generative AI, Artificial Intelligence, AI Personalization, Google Workspace
★ 4.8 (1.2K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: SAS (Software), Statistical Reporting, Data Import/Export, Data Validation, Data Access, Data Manipulation, Statistical Programming, Exploratory Data Analysis, Data Analysis Software, Data Preprocessing, Data Analysis, Data Transformation, SQL, Data Presentation, Microsoft Excel, Descriptive Statistics
★ 4.8 (3.2K) · Beginner · Course · 1 - 3 Months

Tableau Learning Partner
Skills you'll gain: Data Storytelling, Exploratory Data Analysis, Requirements Elicitation, Ad Hoc Reporting, Data Governance, Data Ethics, Tableau Software, Business Analysis, Data Literacy, Data Visualization, Data Preprocessing, Data Visualization Software, Data Warehousing, Business Metrics, Dashboard, Statistical Visualization, Data Analysis, Spatial Data Analysis, Data Presentation, Data Management
★ 4.7 (1.2K) · Beginner · Professional Certificate · 3 - 6 Months

Board Infinity
Skills you'll gain: Dashboard Creation, Interactive Data Visualization, Dashboard, Data Presentation, Data Storytelling, No-Code Development, Data Processing, Environmental Social And Corporate Governance (ESG), Data Preprocessing, Data Cleansing, Product Development, Sustainability Reporting, Data Manipulation, Data Wrangling, Analytics, Business Reporting, Anthropic Claude, Sustainable Business, User Interface (UI), AI Workflows
Beginner · Course · 1 - 4 Weeks

Sage Publications
Skills you'll gain: Statistical Reporting, Regression Analysis, Research Reports, Report Writing, Statistical Inference, SPSS, Data Presentation, Quantitative Research, Statistical Methods, Statistical Analysis, Data Analysis, Statistical Software, Statistical Modeling, Logistic Regression, Political Sciences, Research, Research Methodologies, SPSS (Software), Data Visualization, International Relations
Beginner · Course · 1 - 4 Weeks

University of California, Santa Cruz
Skills you'll gain: Bayesian Statistics, Time Series Analysis and Forecasting, Statistical Inference, Statistical Methods, R Programming, Forecasting, Statistical Programming, R (Software), Probability & Statistics, Statistical Modeling, Technical Communication, Probability, Statistics, Statistical Analysis, Statistical Reporting, Statistical Software, Probability Distribution, Data Analysis, Markov Model, Data Science
★ 4.6 (3.5K) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Excel Formulas, Microsoft Excel, Data Cleansing, Spreadsheet Software, Data Validation, Complex Problem Solving, Data Analysis Software, Data Analysis, Statistical Analysis, Data Management
★ 4.7 (5.5K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Natural Language Processing, Supervised Learning, Embeddings, Applied Machine Learning, Dimensionality Reduction, Text Mining, Statistical Machine Learning, Classification Algorithms, Logistic Regression, Feature Engineering, Probability & Statistics
★ 4.6 (4.6K) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Power BI, Microsoft Copilot, Data Modeling, Data Analysis Expressions (DAX), Microsoft Power Platform, Data Storytelling, Data Visualization Software, Data Presentation, Interactive Data Visualization, Business Intelligence, Data Maintenance, Data Analysis, Extract, Transform, Load, Database Administration, Data Integration, Data Manipulation, Data Wrangling, Data Transformation, Data Access, Data Cleansing
★ 4.6 (719) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Analysis Expressions (DAX), Power BI, Data Visualization, Interactive Data Visualization, Debugging, AI Workflows, Model Optimization, Business Logic, Performance Tuning, Text Mining, AI Integrations, Complex Problem Solving, Context Management, Data Modeling, Dependency Analysis, Data Analysis, Analytical Skills, Business Analysis, Business Metrics, Business Operations
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Unsupervised Learning, Exploratory Data Analysis, Autoencoders, Feature Engineering, Dimensionality Reduction, Supervised Learning, Generative AI, Classification Algorithms, Regression Analysis, Time Series Analysis and Forecasting, Recurrent Neural Networks (RNNs), Convolutional Neural Networks, Reinforcement Learning, Generative Adversarial Networks (GANs), Generative Model Architectures, Artificial Intelligence and Machine Learning (AI/ML), Deep Learning, Data Science, Machine Learning, Python Programming
★ 4.6 (3.7K) · Intermediate · Professional Certificate · 3 - 6 Months