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: Data Pipelines, Data Validation, SQL, Extract, Transform, Load, Data Transformation, JSON, Data Processing, Data Warehousing, Query Languages, Data Integration, Data Integrity, Performance Testing, Performance Tuning, Data Quality, Verification And Validation, Dashboard, Systems Integration, Dimensionality Reduction
Advanced · Course · 3 - 6 Months

Skills you'll gain: Feature Engineering, Dimensionality Reduction, Data Integration, Data Preprocessing, Exploratory Data Analysis, Data Visualization, Plot (Graphics), Data Compilation, Matlab, Scientific Visualization, Data Processing, Data Cleansing, Data Wrangling, Data Manipulation, Histogram, Data Transformation, Data Science, Text Mining, Predictive Modeling, Unstructured Data
★ 4.7 (351) · Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Business Intelligence, Looker (Software), Data Visualization, Data Presentation, Interactive Data Visualization, Business Reporting, Data Visualization Software, Dashboard, Data Storytelling, Power BI, Dashboard Creation, Business Analytics, Data Analysis, Business Marketing, Trend Analysis
Intermediate · Course · 1 - 4 Weeks

Ball State University
Skills you'll gain: Statistical Methods, Probability & Statistics, Probability, Statistical Modeling, Statistical Programming, Statistical Analysis, Probability Distribution, Statistical Inference, Bayesian Statistics, Data Science, Sampling (Statistics), Statistical Hypothesis Testing, R Programming, Dimensionality Reduction, R (Software), Simulations, Statistical Visualization
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Marketing Analytics, Data-Driven Marketing, Marketing Effectiveness, A/B Testing, Target Audience, Marketing Strategies, Marketing, Marketing Planning, Marketing Strategy and Techniques, Online Advertising, Customer Analysis, Conversion Funnel Analysis, Marketing Channel, Advertising Campaigns, Persona Development, Customer Insights, Regression Analysis, Model Evaluation, Data Analysis, Descriptive Analytics
★ 4.7 (294) · Beginner · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Power BI, Data Analysis Expressions (DAX), Dashboard Creation, Business Reporting, Data Transformation, Business Intelligence, Data Visualization Software, Business Intelligence Software, Dashboard, Data Analysis, Microsoft Excel, Data Visualization, Data Cleansing, Data Modeling, Data Analysis Software, Microsoft PowerPoint, Microsoft 365, Microsoft Office, Collaboration, Data Import/Export
★ 4.6 (14) · Intermediate · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Precision Medicine, Game Theory, Reinforcement Learning, Data-Driven Decision-Making, Clinical Trials, Bioinformatics, Image Analysis, Markov Model, Bayesian Statistics, Data Analysis, Time Series Analysis and Forecasting, Decision Making, Data Science, Biostatistics, Strategic Decision-Making, Clinical Research, Statistical Methods, Cyber Security Strategy, Decision Intelligence, Statistical Analysis
Intermediate · Specialization · 3 - 6 Months

LearnKartS
Skills you'll gain: Matplotlib, Pandas (Python Package), Plot (Graphics), Data Visualization, Seaborn, Data Manipulation, Data Visualization Software, Pseudocode, Problem Solving, Data Analysis, Programming Principles, Data Processing, AI literacy, Dashboard, Python Programming, Data Science, Computer Programming, Generative AI
Mixed · Course · 1 - 3 Months

Skills you'll gain: Matplotlib, Seaborn, Plot (Graphics), Scatter Plots, Histogram, Data Visualization, Data Visualization Software, Graphing, Statistical Visualization, Data Analysis, Python Programming
★ 4.5 (30) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Dashboard Creation, Dashboard, Data Visualization, Data Storytelling, Data Presentation, Interactive Data Visualization, Statistical Visualization, Power BI, Data Visualization Software, Presentations, Business Intelligence, Data Analysis Expressions (DAX), Market Data, Market Analysis, Storytelling, Report Writing, Target Audience, Data Integration, Data Validation, Usability Testing
Beginner · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Portfolio Management, Financial Data, Time Series Analysis and Forecasting, Performance Measurement, Financial Forecasting, Market Data, Forecasting, Analytics, Financial Trading, Financial Analysis, R Programming, Financial Market, Portfolio Risk, Trend Analysis, Investment Management, Investments, Model Evaluation, Statistical Methods, Correlation Analysis, Risk Analysis
★ 4.4 (223) · Intermediate · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: MySQL, Relational Databases, Data Management, Database Design, Data Warehousing, Data Visualization, Data Visualization Software, Interactive Data Visualization, Data Security, Dashboard Creation, Dashboard, Database Management, Data Presentation, Tableau Software, Data Cleansing, Data Integration, SQL, Microsoft Excel, Data Governance, Data Manipulation
★ 5 (9) · Advanced · Course · 1 - 3 Months