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: Surveys, Survey Creation, Sampling (Statistics), Quantitative Research, Analysis, Research Methodologies, Data Analysis, Data Collection, Data Quality, Data Transformation, Statistical Analysis, Data Modeling, Data Validation, Statistical Methods, Mitigation
★ 4.7 (82) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Dashboard, Dashboard Creation, Employee Retention, Report Writing, Employee Engagement, Employee Surveys, Data Storytelling, People Analytics, HR Tech, Root Cause Analysis, Data Import/Export, Human Resources Software, Decision Making, Data Cleansing, Human Resource Management, Data Visualization, Talent Management, Microsoft Excel, Statistical Analysis, Surveys
Beginner · Specialization · 3 - 6 Months

SkillsBooster Academy
Skills you'll gain: Microsoft Copilot, Data Visualization, Data Analysis, Interactive Data Visualization, Data Presentation, Exploratory Data Analysis, Data Storytelling, Data Visualization Software, Dashboard, Data Cleansing, Microsoft Excel, AI Workflows, Microsoft PowerPoint, Artificial Intelligence and Machine Learning (AI/ML), AI Personalization, Excel Formulas, Data Architecture, Excel Macros, Generative AI, Microsoft Windows
Beginner · Course · 1 - 3 Months
University of Toronto
Skills you'll gain: Scientific Visualization, Data Visualization Software, Graphic and Visual Design, Statistical Visualization, Interactive Data Visualization, Bioinformatics, Plot (Graphics), Ggplot2, R (Software), Dimensionality Reduction, Scatter Plots, Design Elements And Principles, R Programming, Network Analysis, Heat Maps, Molecular Biology, Design Thinking, Molecular, Cellular, and Microbiology, Web Services
★ 4.8 (25) · Intermediate · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: digital literacy, Systems Design, Systems Development, Data Security, System Design and Implementation, Data Ethics, Cybersecurity, Information Technology, Information Privacy
★ 4.5 (53) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Lakes, Data Pipelines, Data Integration, Apache Airflow, Performance Tuning, Data Security, Data Architecture, Data Transformation, Apache Spark, Disaster Recovery, Data Warehousing, Cloud Infrastructure, SQL, Infrastructure as Code (IaC), Database Architecture and Administration, PySpark, Terraform, Extract, Transform, Load, Cloud Computing, Data Governance
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Model Deployment, Google Cloud Platform, Data Lakes, Dataflow, Data Pipelines, Apache Kafka, Tensorflow, Real Time Data, Extract, Transform, Load, Big Data, Data Warehousing, Apache Spark, Data Architecture, Data Management, Data Processing, Data Integration, Metadata Management, Unstructured Data, Dashboard Creation, Applied Machine Learning
★ 4.7 (815) · Intermediate · Specialization · 3 - 6 Months

Google Cloud
Skills you'll gain: Data Governance, Gmail, Google Workspace, Data Loss Prevention, Data Management, Data Security, Information Management, Records Management, Email Security, Data Storage, Data Import/Export
Beginner · Course · 1 - 4 Weeks

Wesleyan University
Skills you'll gain: Data Storytelling, Data Presentation, Exploratory Data Analysis, Data Analysis, Data Visualization, Research Reports, Statistical Reporting, Analytical Skills, Report Writing, Data Synthesis, Data Science, Data Management, Statistical Analysis, Data Manipulation, Descriptive Analytics, Descriptive Statistics, Research Methodologies, Research, Research Design
★ 4.8 (48) · Mixed · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Star Schema, Data Analysis Expressions (DAX), Power BI, Data Modeling, Model Optimization, Performance Tuning, Business Intelligence, Data Analysis
★ 4 (13) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Data-Driven Decision-Making, Descriptive Statistics, Data Literacy, Data Analysis, Plot (Graphics), Probability Distribution, Statistical Software, Statistics, Statistical Visualization, R (Software), Data Visualization, Statistical Analysis, Probability, R Programming, Probability & Statistics, Statistical Programming, Descriptive Analytics, Statistical Hypothesis Testing, Data Manipulation, Histogram
★ 4.3 (15) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Structures, Algorithms, Java, Java Programming, Programming Principles, Computer Programming, Performance Tuning, Computational Thinking, Theoretical Computer Science, Solution Design
Beginner · Course · 1 - 3 Months