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.

University of Michigan
Skills you'll gain: Relational Databases, Databases, Data Visualization Software, Web Scraping, Data Science, Scatter Plots, Data Manipulation, SQL, Data Processing, JSON, Application Programming Interface (API), Data Import/Export, Python Programming, Extensible Markup Language (XML), Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Storytelling, Customer Analysis, Data Integration, Interactive Data Visualization, Dashboard, Data Visualization, Data Analysis, Customer Insights, Data-Driven Decision-Making, Data Analysis Software, Exploratory Data Analysis, Presentations, Analytics, Technical Communication, Data Visualization Software, Data Import/Export
Intermediate · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Data Cleansing, Data Validation, Spreadsheet Software, Data Quality, Data Manipulation, Data Analysis, Data Analysis Software
Intermediate · Project · Less Than 2 Hours

Imperial College London
Skills you'll gain: Linear Algebra, Dimensionality Reduction, Regression Analysis, NumPy, Calculus, Applied Mathematics, Probability & Statistics, Artificial Neural Networks, Data Preprocessing, Statistical Analysis, Unsupervised Learning, Advanced Mathematics, Jupyter, Statistics, Machine Learning Algorithms, Algorithms, Python Programming, Machine Learning, Derivatives
Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Performance Testing, Scalability, System Testing, Data Architecture, Software Architecture, Performance Tuning, Distributed Computing, Development Testing, Microservices, Big Data, Prototyping, Software Engineering, Model Evaluation, Predictive Modeling
Build toward a degree
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Data Engineering, Data Pipelines, Data Transformation, Extract, Transform, Load, Data Integration, Data Warehousing, Software Development Tools, Data Import/Export, Stored Procedure, SQL, Data Analysis, GitHub, Microsoft Visual Studio, Command-Line Interface
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Vulnerability Management, Security Information and Event Management (SIEM), Penetration Testing, Vulnerability Assessments, Cybersecurity, Intelligence Collection and Analysis, Vulnerability Scanning, Cyber Attacks, Network Security, Information Systems Security, Computer Security, Analysis, Network Analysis, Auditing, Data Analysis, Linux Commands, Data Collection, Correlation Analysis, Bash (Scripting Language), Windows PowerShell
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Tableau Software, Data Transformation, Data Integration, SQL Server Integration Services (SSIS), Data Visualization Software, Relational Databases, Data Management, Advanced Analytics, Data Analysis, Data Preprocessing, Data Cleansing, Business Intelligence, Forecasting
Intermediate · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Excel Formulas, Pivot Tables And Charts, Microsoft Excel, Spreadsheet Software, Data Validation, Data Visualization, Data Analysis, Interactive Data Visualization, Productivity Software, Data Integrity, Microsoft Office, Microsoft 365
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Data Storytelling, Qualitative Research, Market Research, Quantitative Research, Data-Driven Decision-Making, Benchmarking, Data Presentation, Descriptive Statistics, Competitive Analysis, Analytical Skills, Research Design, Market Dynamics, Data Analysis, Data Visualization Software, Statistics, User Research, Data Collection, Data Analysis Software, Microsoft Excel, R Programming
Intermediate · Specialization · 1 - 3 Months

Northeastern University
Skills you'll gain: Data Storytelling, Data Literacy, Statistical Visualization, Data-Driven Decision-Making, Data Visualization Software, Data Preprocessing, Data Mining, Exploratory Data Analysis, Data Cleansing, Graphing, Big Data, Python Programming, NumPy, Computer Programming
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Descriptive Statistics, Model Evaluation, Feature Engineering, Probability & Statistics, Supervised Learning, Statistical Hypothesis Testing, Exploratory Data Analysis, Box Plots, Regression Analysis, Statistics, Predictive Modeling, Time Series Analysis and Forecasting, Data Science, Histogram, Data Visualization, Statistical Analysis, Integrated Development Environments, Computer Networking, Python Programming, Server Side
Beginner · Specialization · 3 - 6 Months