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.

Skills you'll gain: Data Visualization Software, Data Modeling, Dashboard, Interactive Data Visualization, Data Presentation, Data Processing, Data Storytelling, Data Transformation, Data Preprocessing, Data Integration, Data Cleansing, Data Import/Export, Data Analysis, Data Quality, Key Performance Indicators (KPIs)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Dashboard, Power BI, Data Presentation, Data Visualization Software, Data Storytelling, Data Visualization, Interactive Data Visualization, Advanced Analytics, Data Analysis, Business Intelligence, Statistical Reporting
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Wrangling, Command-Line Interface, Data Transformation, Data Processing, Data Pipelines, Google Cloud Platform, Data Integration, Data Management, Database Administration
Beginner · Project · Less Than 2 Hours
University of Illinois Urbana-Champaign
Skills you'll gain: Data Storytelling, Data Visualization, Data Literacy, Infographics, Data Collection, Data Quality, Business Analytics, Data Visualization Software, Data-Driven Decision-Making, Analytics, Data Analysis, Communication, Digital Marketing, Health Care
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Health Informatics, Clinical Informatics, Healthcare Project Management, Health Technology, Change Control, Health Systems, Informatics, Health Policy, Health Care, Medical Records, Health Care Administration, Healthcare Industry Knowledge, Health Information Management, Clinical Leadership, Decision Support Systems, Solution Design, Health Information Management and Medical Records, IT Management, Electronic Medical Record System, Data Science
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Data Lakes, File Management, Microsoft Azure, Record Keeping, Information Management, Data Management, Data Storage Technologies
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Apache Hive, Database Management, SQL, Big Data, Database Systems, Amazon Web Services, Data Management, Amazon S3, Apache Hadoop, Data Storage, Cloud Storage, Performance Tuning, File Systems, Command-Line Interface, Virtual Machines
Beginner · Course · 1 - 3 Months

Maven Analytics
Skills you'll gain: Microsoft Copilot, Microsoft Excel, Pivot Tables And Charts, Excel Formulas, Human Resources Software, Data Manipulation, Data Analysis, Microsoft 365, Data Presentation, ChatGPT, Data Visualization, Artificial Intelligence, Generative AI, Prompt Engineering
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Structures, Graph Theory, Algorithms, Java, Java Programming, Theoretical Computer Science, Computer Programming, Computational Thinking, Programming Principles, Performance Tuning, Object-Relational Mapping, Computer Programming Tools
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Pandas (Python Package), Data Import/Export, Matplotlib, Pivot Tables And Charts, Jupyter, Data Visualization Software, Data Visualization, Microsoft Excel, Data Analysis, Text Mining, Data Manipulation, Data Cleansing, NumPy, Data Analysis Software, Data Wrangling, Time Series Analysis and Forecasting, Python Programming, Data Preprocessing, Data Structures, Development Environment
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Microsoft Excel, Pivot Tables And Charts, Excel Formulas, Data Presentation, Data Storytelling, Data Visualization Software, Microsoft Copilot, Statistical Analysis, Data Analysis, Statistical Methods, Data Integration, Data-Driven Decision-Making
Beginner · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Apache Spark, Apache Hadoop, Scala Programming, Distributed Computing, Big Data, Data Manipulation, Data Processing, Performance Tuning, Data Persistence, SQL
Intermediate · Course · 1 - 4 Weeks