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.

Unilever
Skills you'll gain: Data Governance, Data Storytelling, Data Presentation, Data Literacy, Presentations, Data Visualization, Supply Chain, Data Management, Supply Chain Management, Data Analysis, Data Analysis Software, Analytics, Data Visualization Software, Data Quality, Data Compilation, Analytical Skills, Data Cleansing, Data Synthesis, Risk Management, Problem Solving
★ 4.5 (93) · Beginner · Course · 1 - 3 Months

Sciences Po
Skills you'll gain: Social Sciences, Data Governance, Economics, Policy, and Social Studies, Political Sciences, Governance, Public Administration, Data Management, Data Sharing, Digital Transformation, Policy Analysis, Big Data, Driving engagement, Algorithms, Computing Platforms, Data-Driven Decision-Making, Personally Identifiable Information, Information Privacy
★ 4.7 (50) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Generative AI, Model Evaluation, Supervised Learning, Generative Model Architectures, AWS SageMaker, Recurrent Neural Networks (RNNs), Unsupervised Learning, Data Preprocessing, Large Language Modeling, Time Series Analysis and Forecasting, LLM Application, Applied Machine Learning, Model Optimization, Deep Learning, A/B Testing, Python Programming, Machine Learning, Data Analysis, AWS CloudFormation, AI Personalization
★ 4.1 (37) · Intermediate · Specialization · 3 - 6 Months

University of Michigan
Skills you'll gain: Memory Management, C (Programming Language), C and C++, Data Structures, Secure Coding, Application Security, System Programming, Programming Principles
★ 4.5 (73) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Marketing Analytics, Data-Driven Marketing, A/B Testing, Customer Analysis, Anomaly Detection, Dashboard, Dashboard Creation, Time Series Analysis and Forecasting, Regression Analysis, Customer Insights, Extract, Transform, Load, Descriptive Analytics, Data Presentation, Statistical Methods, Marketing Effectiveness, Marketing Strategies, Forecasting, Statistical Modeling, Statistical Analysis, Markov Model
Intermediate · Course · 3 - 6 Months

Coursera
Skills you'll gain: Data Flow Diagrams (DFDs), Diagram Design, Data Mapping, Data Pipelines, Data Visualization, Dataflow, Technical Communication, Data Store, Data Transformation
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Surveys, Survey Creation, Sampling (Statistics), Quantitative Research, Analysis, Research Methodologies, Data Analysis, Data Collection, Data Quality, Research Design, Data Transformation, Statistical Analysis, Data Literacy, Data Modeling, Data Validation, Mitigation
★ 4.7 (82) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Graph Theory, Computational Thinking, Data Structures, Algorithms, Problem Solving, Programming Principles, Computer Programming, Theoretical Computer Science, Javascript, Performance Tuning, Memory Management
Intermediate · Specialization · 3 - 6 Months

University at Buffalo
Skills you'll gain: Process Mapping, Performance Improvement, Data Collection, Process Improvement, Process Improvement and Optimization, Business Process, Business Process Improvement, Process Design, Data Strategy, Process Analysis, Data-Driven Decision-Making, Performance Measurement, Process Flow Diagrams, Business Priorities, Data Validation, Business Process Modeling, Plan Execution, Data Capture, Operational Performance Management, Performance Analysis
★ 4.7 (255) · Beginner · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Machine Learning Algorithms, Data Literacy, Unsupervised Learning, Data Science, Applied Machine Learning, Machine Learning
★ 4.6 (83) · Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Pandas (Python Package), Version Control, Git (Version Control System), Data Manipulation, Software Development Tools, Development Environment, Data Structures, Python Programming, Microsoft Development Tools, Data Analysis Software, Package and Software Management, Virtual Environment
★ 4.6 (275) · Beginner · 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