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.

Wesleyan University
Skills you'll gain: Regression Analysis, Logistic Regression, Statistical Methods, Statistical Analysis, Statistical Modeling, Data Analysis, Correlation Analysis, SAS (Software), Statistical Programming, Statistical Inference, Predictive Modeling, Model Evaluation, Python Programming
★ 4.4 (274) · Mixed · Course · 1 - 4 Weeks

New York University
Skills you'll gain: Reinforcement Learning, Financial Trading, Financial Market, Derivatives, Markov Model, Risk Modeling, Financial Modeling, Portfolio Management, Model Optimization, Market Dynamics, Machine Learning, Machine Learning Algorithms
★ 3.6 (134) · Advanced · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Model Training, Regression Analysis, NumPy, Machine Learning Algorithms, Machine Learning, Model Optimization, Deep Learning, Data Science, Python Programming
★ 4.6 (441) · Intermediate · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: Prompt Engineering, Prompt Patterns, Responsible AI, AI Integrations, OpenAI API, OpenAI, Generative AI, API Testing, Data Ethics, AI Security, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), Application Programming Interface (API), Fine-tuning, Computer Programming, Key Management
★ 4.5 (164) · Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Data Visualization, Dashboard Creation, Excel Formulas, Dashboard, Pivot Tables And Charts, Plot (Graphics), Microsoft Excel, Data Validation, Data Management, Data Cleansing, Data Entry, Data Sharing, Data Import/Export, Spreadsheet Software, Data Transformation, Microsoft Office, Data Analysis Software, Analysis, Data Integrity, Problem Solving
★ 4.7 (4.1K) · Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Interactive Data Visualization, Data Storytelling, Data Presentation, Data Visualization, Business Intelligence, Dashboard Creation, Business Intelligence Software, Data-Driven Decision-Making, Customer Analysis, Data Modeling, Data Analysis, Data Integration, Advanced Analytics, Spatial Data Analysis, Exploratory Data Analysis, Statistical Analysis, Data Transformation, Decision Support Systems, Collaborative Software, Data Validation
★ 4.7 (90) · Advanced · Specialization · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: C++ (Programming Language), Data Structures, Object Oriented Programming (OOP), Object Oriented Design, Graph Theory, Development Environment, Data Storage, Engineering Software, Unstructured Data, Computer Programming, Software Engineering, Algorithms, Memory Management, Computer Programming Tools, Debugging, Program Development, Database Systems, Theoretical Computer Science
★ 4.7 (3.5K) · Intermediate · Specialization · 1 - 3 Months

Pontificia Universidad Católica de Chile
Skills you'll gain: File I/O, Python Programming, Code Reusability, Data Structures, Programming Principles, Computer Programming, Program Development, Application Development, Computational Logic
★ 4.4 (5K) · Beginner · Course · 1 - 3 Months
Duke University
Skills you'll gain: Predictive Modeling, Data Storytelling, Database Design, Dashboard, Predictive Analytics, MySQL, Data Presentation, Relational Databases, SQL, Tableau Software, Business Analytics, Business Metrics, Data Visualization Software, Process Development, Data Visualization, Business Analysis, Data Analysis, Big Data, Business Communication, Microsoft Excel
★ 4.6 (15K) · Beginner · Specialization · 3 - 6 Months

University of California, Santa Cruz
Skills you'll gain: R Programming, Statistical Programming, R (Software), Statistical Modeling, Bayesian Statistics, Statistical Software, Markov Model, Mathematical Modeling, Statistical Methods, Statistical Inference, Sampling (Statistics), Simulations, Probability Distribution, Classification Algorithms
★ 4.5 (63) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Storytelling, Data Presentation, Data Visualization, Rmarkdown, Stakeholder Communications, Data Ethics, Data Literacy, Data-Driven Decision-Making, Stakeholder Management, Interactive Data Visualization, Data Cleansing, Tableau Software, Spreadsheet Software, Data Validation, Data Visualization Software, R (Software), Data Integrity, Data Collection, Case Studies, Interviewing Skills
★ 4.7 (331) · Beginner · Professional Certificate · 3 - 6 Months

University of London
Skills you'll gain: Microsoft Excel, Spreadsheet Software, Environmental Policy, Data Literacy, Data Analysis, Policy Development, Data Visualization, Descriptive Statistics, Statistical Analysis, Correlation Analysis, Policy Analysis, Environmental Issue, Scatter Plots, Statistical Methods, Environmental Science, Climate Change Adaptation, Climate Change Mitigation, Probability Distribution
★ 4.6 (53) · Beginner · Course · 1 - 4 Weeks