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.

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 Cleansing, Software Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Performance Reporting, Marketing Analytics, Business Intelligence, Business Intelligence Software, Dashboard Creation, Data-Driven Marketing, Data Visualization Software, Dashboard, Data Presentation, Power BI, Tableau Software, IBM Cognos Analytics, Grafana, Splunk, Data Import/Export
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: MySQL, Google Cloud Platform, Data Migration, Database Management, SQL, Data Store, Big Data, Extract, Transform, Load, Data Pipelines, Data Management, Cloud Deployment
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Microsoft Excel, Data Presentation, Interactive Data Visualization, Data Storytelling, Predictive Modeling, Data Visualization Software, Dashboard Creation, Data Synthesis, Spreadsheet Software, Microsoft Copilot, Excel Formulas, Data Analysis, Data-Driven Decision-Making, Forecasting, Prompt Engineering, Data Manipulation, Data Transformation
★ 4.8 (17) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Import/Export, Data Wrangling, Data Analysis, Exploratory Data Analysis, Java, Data Processing, Data Manipulation, Java Programming, Statistical Methods, Statistics
★ 4.5 (6) · Intermediate · Guided Project · Less Than 2 Hours

Amazon Web Services
Skills you'll gain: Cloud Storage, Amazon Web Services, Data Storage Technologies, Data Storage, Disaster Recovery, Data Store
★ 4.8 (10) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Troubleshooting, Network Security, OSI Models, Network Monitoring, Network Performance Management, Network Architecture, Computer Networking, TCP/IP, General Networking, Local Area Networks, Cybersecurity, Network Analysis, Network Protocols, Network Infrastructure, Network Support, Information Systems Security, Software-Defined Networking, Network Administration, Network Planning And Design, Network Routing
★ 4.7 (27) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Dataflow, Azure Synapse Analytics, Performance Tuning, Microsoft Azure, System Monitoring, Data Engineering, Transact-SQL, Continuous Deployment, Star Schema, Power BI, PySpark, Data Cleansing, Data Analysis Expressions (DAX), Apache Spark, Analytics, Data Analysis, SQL, Azure Active Directory, Advanced Analytics, Microsoft Copilot
Intermediate · Specialization · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Web Analytics and SEO, AI Personalization, Document Management, Semantic Web, Algorithms, Model Evaluation, Network Analysis, Text Mining, Natural Language Processing, User Research, Business Modeling, Graph Theory
★ 5 (8) · Intermediate · Course · 3 - 6 Months

Logical Operations
Skills you'll gain: Excel Macros, Microsoft Excel, Excel Formulas, Data Transformation, Data Import/Export, File I/O, Data Wrangling, Extensible Markup Language (XML), Data Manipulation, Visual Basic (Programming Language), Spreadsheet Software, Automation, Microsoft 365, Microsoft Office, Data Science, Query Languages, File Management, Debugging, Performance Improvement, Computer Programming
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Maintainability, Computational Logic
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Looker (Software), Data-Driven Decision-Making, Data Analysis, Dashboard, Analytics, Data Visualization Software, Dashboard Creation, Big Data, Data Presentation, Google Cloud Platform, SQL, Cloud Storage, Data Warehousing, Data Storage Technologies, Data Processing, Data Storage, Data Sharing, Cloud Services
Beginner · Course · 1 - 3 Months