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.

Board Infinity
Skills you'll gain: Dashboard, Brand Management, Brand Strategy, Branding, Analytics, Governance, Strategic Marketing, Brand Awareness, Performance Measurement, Brand Loyalty, Digital Brand Strategy, Agile Methodology, Marketing Strategies, Data-Driven Marketing, Intercultural Competence, Culture Transformation, Sustainable Business, Experience Design, Customer experience improvement, Corporate Sustainability
Advanced · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Star Schema, Role-Based Access Control (RBAC), Power BI, Database Design, Data Modeling, Data Analysis Expressions (DAX), Authorization (Computing), Relational Databases, Financial Data, Data Security, Security Controls, Dashboard, Data Access, Dashboard Creation, Model Deployment, Gross Profit, Cloud Deployment, Performance Improvement
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Lakes, File Management, Microsoft Azure, Azure Synapse Analytics, Information Management, Data Management, Databricks, Data Storage Technologies, Data Security
★ 4.6 (18) · Beginner · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Calculus, Integral Calculus, Numerical Analysis, Advanced Mathematics, Mathematical Theory & Analysis, Mathematical Modeling, Mathematical Software, Data Analysis, Probability, Geometry, Applied Mathematics, Mechanics, Estimation, Probability & Statistics, Exploratory Data Analysis, Graphing, Physics
★ 4.8 (143) · Intermediate · Specialization · 3 - 6 Months
Skills you'll gain: Apache Kafka, Multi-Tenant Cloud Environments, Data Pipelines, Real Time Data, Payment Card Industry (PCI) Data Security Standards, Data Governance, Scalability, Performance Tuning, Compliance Management, Data Architecture, Performance Stress Testing, Governance, Apache, Cost Management, System Configuration, Data Storage, Computer Architecture
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Tableau Software, Data Visualization, Data Presentation, Data Visualization Software, Dashboard, Dashboard Creation, Statistical Visualization, Pivot Tables And Charts, Trend Analysis, Spatial Data Analysis
★ 4.7 (14) · Beginner · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Scientific Visualization, Image Analysis, Data Visualization Software, Machine Learning Methods, Matlab, Applied Machine Learning, Dimensionality Reduction, Digital Signal Processing, Data Analysis, Data Processing, Mathematical Software, Classification Algorithms, Regression Analysis, Scripting
★ 4.6 (234) · Intermediate · Course · 1 - 3 Months

Rice University
Skills you'll gain: Probability & Statistics, Microsoft Excel, Descriptive Statistics, Box Plots, Statistical Methods, Probability Distribution, Statistical Visualization, Data Visualization, Probability, Statistics, Excel Formulas, Plot (Graphics), Business Mathematics, Spreadsheet Software, Data-Driven Decision-Making, Mathematical Theory & Analysis, Algebra, Bayesian Statistics, Arithmetic, Case Studies
★ 4.6 (19) · Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Relational Databases, SQL, Databases, Data Access, Data Manipulation, Database Development, Query Languages
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Azure, Data Processing, Database Administration, Database Theory, Databases, Data Store, Database Management Systems, Cloud Services, Data Storage, Azure Synapse Analytics, Database Management, Relational Databases, Query Languages, NoSQL, Transaction Processing, Data Management, Cloud Computing, Data Analysis, Unstructured Data, Data Visualization Software
★ 4.7 (484) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Matplotlib, Scientific Visualization, Visualization (Computer Graphics), Plot (Graphics), Data Visualization, Data Visualization Software, Computer Graphics, Data Transformation, Typography
Mixed · Course · 1 - 4 Weeks

Maven Analytics
Skills you'll gain: Microsoft Copilot, Microsoft Excel, Pivot Tables And Charts, Excel Formulas, People Analytics, Data Manipulation, Data Analysis, Data Wrangling, Data Visualization, Artificial Intelligence, Generative AI, Prompt Engineering
★ 4.6 (16) · Beginner · Course · 1 - 3 Months