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.

Universidad Nacional Autónoma de México
Skills you'll gain: R (Software), R Programming, Statistical Programming, Ggplot2, Plot (Graphics), Data Manipulation, Simulations, Statistical Software, Statistical Visualization, grep, Data Processing, Graphing, Programming Principles, Data Import/Export, Exploratory Data Analysis, Data Structures, Software Installation, Package and Software Management
Beginner · Course · 1 - 3 Months

University of Pittsburgh
Skills you'll gain: Data Storytelling, Data Presentation, Plot (Graphics), Data Visualization, Matplotlib, Interactive Data Visualization, Data Visualization Software, Seaborn, Statistical Visualization, Graphing, Data Analysis, Graphic and Visual Design, Python Programming
Build toward a degree
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Ggplot2, Plot (Graphics), Data Visualization, Interactive Data Visualization, Statistical Visualization, Data Visualization Software, Exploratory Data Analysis, Data Presentation, R (Software), Scatter Plots, Tidyverse (R Package), R Programming, Box Plots, Graphing, Histogram, Data Wrangling, Data Manipulation
Mixed · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Data Security, Cybersecurity, Cyber Attacks, Data Ethics, Computer Security, Authentications, Cryptography, Information Assurance, Cyber Security Policies, Authorization (Computing), Security Software, Security Controls, Cyber Security Assessment, Information Privacy, Encryption, Data Access, Security Awareness, Risk Analysis, Problem Solving, Communication
Build toward a degree
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Google Analytics, Web Analytics and SEO, Statistical Reporting, Data-Driven Marketing, Analytics, Data Analysis, User Accounts
Beginner · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Unix Commands, Bioinformatics, grep, Unix Shell, Unix, Data Management, Information Management, Command-Line Interface, Linux Commands, Molecular Biology, Bash (Scripting Language), Big Data, Data Manipulation, File Management, Data Analysis Software, Data Processing, Bed Management, Life Sciences, Text Mining
Mixed · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Analytics, Query Languages, Data Analysis, Data Manipulation, SQL, Data Management
Beginner · Project · Less Than 2 Hours
Duke University
Skills you'll gain: Data Ethics, Responsible AI, Data Visualization, Data Presentation, Data Storytelling, Ethical Standards And Conduct, Data Science, Data Collection, Personally Identifiable Information, Information Privacy, Machine Learning, Algorithms
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Probability & Statistics, Data Ethics, Pandas (Python Package), Machine Learning Methods, Statistical Methods, Bayesian Statistics, Data Literacy, Data Wrangling, Statistics, Data Science, Responsible AI, Probability, Data Visualization, Machine Learning, Applied Machine Learning, Data Processing, Data Architecture, Python Programming, Data Mapping, Data Integrity
Beginner · Course · 3 - 6 Months

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

University of Michigan
Skills you'll gain: NumPy, Debugging, Pandas (Python Package), Statistics, Correlation Analysis, Data Analysis, Statistical Programming, Descriptive Statistics, Exploratory Data Analysis, Data Wrangling, Data Preprocessing, LLM Application, Data-oriented programming, Program Development, Code Reusability, Numerical Analysis, Critical Thinking
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Matplotlib, Data Storytelling, Data Presentation, Scientific Visualization, Visualization (Computer Graphics), Interactive Data Visualization, Plot (Graphics), Data Preprocessing, Statistical Visualization, E-Commerce, Business Analytics, Data Visualization Software, Data-Driven Decision-Making, Computer Graphics, Descriptive Statistics, Data Analysis, Graphing, Layout Design, Data Visualization, Python Programming
Beginner · Specialization · 1 - 3 Months