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: Data Loss Prevention, Data Governance, Gmail, Data Management, Google Workspace, Information Management, Record Keeping, Data Security, Records Management, Data Import/Export, Cloud Security, Document Management, File Management, Email Security, Personally Identifiable Information, Data Storage
Beginner · Course · 1 - 4 Weeks

West Virginia University
Skills you'll gain: Fraud detection, Auditing, Loss Prevention, Internal Controls, Financial Controls, Anomaly Detection, Financial Auditing, Cybersecurity, Financial Data, Investigation, Analytics, Specialized Accounting, Big Data, Accounting, Business Ethics, Data Mining, Accountability
★ 4.7 (6.3K) · Mixed · Course · 1 - 3 Months

Pragmatic AI Labs
Skills you'll gain: Rust (Programming Language), Database Systems, Database Software, SQL, Databases, Query Languages, Data Store, Data Integration, Command-Line Interface, Data Pipelines, Data Processing, JSON, Data Persistence, Cross Platform Development, Data Import/Export, Software Design, Application Deployment
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Biostatistics, Histogram, Box Plots, Statistical Visualization, Quantitative Research, Descriptive Statistics, Probability & Statistics, Statistical Methods, Probability Distribution, Statistics, Public Health, Sampling (Statistics), Sample Size Determination, Risk Analysis
★ 4.8 (2.1K) · Beginner · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: C++ (Programming Language), Data Structures, Object Oriented Programming (OOP), Object Oriented Design, Graph Theory, Development Environment, Data Storage, Engineering Software, Unstructured Data, Computer Programming, Software Engineering, Algorithms, Memory Management, Computer Programming Tools, Integrated Development Environments, Debugging, Program Development, Database Systems, Theoretical Computer Science
★ 4.7 (3.5K) · Intermediate · Specialization · 1 - 3 Months

Arizona State University
Skills you'll gain: Regression Analysis, Experimentation, Statistical Methods, Statistical Analysis, Model Optimization, Statistical Modeling, Statistical Inference, Mathematical Modeling, Design Strategies, Model Evaluation
★ 4.7 (67) · Intermediate · Course · 1 - 4 Weeks

Yonsei University
Skills you'll gain: Text Mining, Data Mining, Unstructured Data, Data Preprocessing, Data Processing, Natural Language Processing, Classification Algorithms, Analytics, Java, Unsupervised Learning, Feature Engineering, Machine Learning Methods, Supervised Learning
★ 3.9 (40) · Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Key Performance Indicators (KPIs), Dashboard, Performance Measurement, Data-Driven Marketing, Business Intelligence, Performance Metric, Business Metrics, Performance Analysis, Email Marketing, Performance Reporting, Stakeholder Communications, Marketing Analytics, Data-Driven Decision-Making, Data Visualization, Campaign Management, Continuous Monitoring
Beginner · Course · 1 - 4 Weeks

British Standards Institution
Skills you'll gain: Responsible AI, Data Ethics, Artificial Intelligence, Data Governance, Risk Management Framework, Risk Management, Compliance Management, Accountability Frameworks, Risk Analysis, Risk Mitigation, Data Quality, Regulatory Compliance, Governance, Human Machine Interfaces, Trustworthiness
Mixed · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Calculus, Integral Calculus, Applied Mathematics, Plot (Graphics), Graphing, Numerical Analysis, Python Programming, Mathematical Software, Software Visualization, Algebra, Derivatives, Computer Programming
★ 4.9 (46) · Intermediate · Course · 1 - 3 Months

Pragmatic AI Labs
Skills you'll gain: Data Engineering, Rust (Programming Language), Command-Line Interface, Data Pipelines, Package and Software Management, Data Processing, Containerization, JSON, Unix Commands, Data Validation, Build Tools, Software Development Tools, Linux Commands, Development Environment, Release Management
Beginner · Course · 1 - 4 Weeks

Interactive Brokers
Skills you'll gain: Derivatives, Equities, Futures Exchange, Risk Analysis, Financial Trading, International Finance, Investments, Securities Trading, Financial Market, Portfolio Risk, Risk Management, Financial Statement Analysis, Financial Analysis, Market Analysis, Market Data, Capital Markets, Investment Management, Tax, Financial Accounting, Balance Sheet
★ 4.4 (864) · Beginner · Specialization · 3 - 6 Months