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.

Imperial College London
Skills you'll gain: Linear Algebra, Applied Mathematics, Jupyter, Data Science, Data Manipulation, Dimensionality Reduction, Data Transformation, Machine Learning, Computational Thinking
★ 4.6 (13K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Financial Modeling, Risk Modeling, Risk Management, Spreadsheet Software, Data Analysis, Strategic Decision-Making
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Query Languages, Business Intelligence, Database Management, Analytics, Transaction Processing, Software Installation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Apache Hadoop, Apache Hive, Big Data, Data Integration, Data Processing, Enterprise Application Management, Performance Tuning, Data Manipulation, Data Analysis, Distributed Computing, Data Import/Export, SQL, Analysis, Data Transformation, Database Management
Mixed · Course · 1 - 3 Months

Skills you'll gain: Secure Coding, Frontend Performance
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Looker (Software), Data Modeling, Dashboard, Dashboard Creation, Performance Tuning, SQL, Data Persistence, Integrated Development Environments, Git (Version Control System), Version Control
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Marketing Analytics, Data Validation, SQL, Web Analytics, Marketing, Data Quality, Analytics, Prompt Engineering, Performance Tuning, Verification And Validation, AI literacy, Query Languages, Business Metrics, Code Review, Key Performance Indicators (KPIs), Data Integrity, Data Modeling, Relational Databases, AI Workflows, Reconciliation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Azure, Database Theory, Cloud Services, Relational Databases, Databases, Data Store, Cloud Storage, Analytics, Data Storage, NoSQL, Data Warehousing, SQL
★ 4.7 (153) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Stakeholder Management, Data Storytelling, People Analytics, Risk Mitigation, Workforce Planning, HR Tech, Consulting, Organizational Strategy, Persuasive Communication, Management Reporting, Communication, Data Visualization, Data Analysis, Talent Management, Strategic Thinking, Employee Engagement, Information Technology, Project Management, Empathy, Statistical Methods
Advanced · Specialization · 3 - 6 Months

Skills you'll gain: Application Deployment, Web Services, Performance Tuning, Application Development, UI Components, Application Design, Software Design, User Interface (UI), User Interface (UI) Design, Software Architecture, Web Applications, Event-Driven Programming, Animations, Software Design Patterns, Frontend Performance, Maintainability, Data-oriented programming
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Python Programming, Simulations, Debugging, Statistical Methods, Pandas (Python Package), Program Development, Test Case, Data Science, Development Testing, Software Design, Computational Thinking, Sampling (Statistics), Data Manipulation, Programming Principles, Data Literacy, Software Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: R Programming, Alteryx, R (Software), Statistical Programming, Tableau Software, Data Cleansing, Dashboard Creation, Data Visualization Software, Dashboard, Data Visualization, Data Storytelling, Statistical Visualization, Interactive Data Visualization, Data Presentation, Data Analysis Software, Statistical Analysis, Data Wrangling, Workflow Management, Data Analysis, Data Processing
Intermediate · Course · 1 - 4 Weeks