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.

Google Cloud
Skills you'll gain: Looker (Software), Data Modeling, Dashboard, Dashboard Creation, Performance Tuning, Business Intelligence Software, SQL, Data Analysis, Data Persistence
★ 4.7 (72) · Intermediate · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: SQL, Generative AI, AI literacy, Data Visualization, Interactive Data Visualization, Query Languages, Prompt Patterns, Data Literacy, Data Analysis, Debugging, Exploratory Data Analysis, ChatGPT, Prompt Engineering, Databases, Context Engineering, Data Validation, Context Management, Code Reusability
★ 4.8 (78) · Beginner · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Surveys, Data Collection, Survey Creation, Research Design, Data Quality, Data Analysis, Analysis, Sampling (Statistics), Big Data
★ 4.2 (774) · Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: Shiny (R Package), PyTorch (Machine Learning Library), Dashboard, Dashboard Creation, Python Programming, Interactive Data Visualization, Data Visualization, Data Visualization Software, Pandas (Python Package), Image Analysis, Applied Machine Learning, AI Workflows, Machine Learning Methods, Data Science, Computer Programming, Web Frameworks, Application Development, UI Components, Web Development Tools, User Interface (UI)
Intermediate · 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

Skills you'll gain: Data Wrangling, Exploratory Data Analysis, Data Presentation, Data Visualization, Data Collection, Predictive Modeling, Interactive Data Visualization, Web Scraping, Shiny (R Package), Ggplot2, Data Analysis, Data Manipulation, Data Cleansing, Statistical Modeling, Predictive Analytics, Tidyverse (R Package), Regression Analysis, Data Transformation, Data Science, Dashboard
★ 4.6 (114) · Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Microsoft Azure, Big Data, Data Processing, Analytics, Data Pipelines, Databricks, Apache Spark, Data Analysis, Data Integration, Data Warehousing, Extract, Transform, Load, Real Time Data, Data Store, Data Transformation, Scheduling, Data Storage
★ 3.7 (68) · Intermediate · Course · 1 - 3 Months

Dartmouth College
Skills you'll gain: Digital Transformation, Predictive Modeling, Customer experience strategy (CX), Analytics, Predictive Analytics, Simulations, Simulation and Simulation Software, Advanced Analytics, Business Transformation, Scikit Learn (Machine Learning Library), Model Evaluation, Data-Driven Decision-Making, Operations Research, Internet Of Things, Model Training, Ethical Standards And Conduct, Cloud Computing, Data Ethics, Business Analytics, Process Optimization
★ 4.9 (32) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Data Ethics, Medical Privacy, Health Insurance Portability And Accountability Act (HIPAA) Compliance, General Data Protection Regulation (GDPR), Health Information Management, Information Privacy, Personally Identifiable Information, Healthcare Ethics, Data Security, Health Informatics, Law, Regulation, and Compliance, Healthcare Industry Knowledge, Regulatory Compliance, Data Integrity, Risk Analysis, Data Access
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Matplotlib, Seaborn, Plot (Graphics), Pandas (Python Package), NumPy, Data Visualization Software, Code Reusability, Data Visualization, Statistical Visualization, Programming Principles, Computer Science, Computer Programming, Data Wrangling, Data Manipulation, Data Processing, Data Science, Package and Software Management, Python Programming, Computational Logic, Data Structures
★ 4.7 (314) · Beginner · Specialization · 1 - 3 Months

University of Colorado System
Skills you'll gain: Data Warehousing, SQL, Data Governance, Data Integration, Data Management, Business Intelligence, Oracle Databases, Analytics, PostgreSQL, Data Mining, Big Data, Relational Databases, Database Management Systems, Query Languages, Business Analytics, Data Architecture, Analytical Skills, Data Storage Technologies
★ 4.6 (592) · Mixed · Course · 1 - 3 Months