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: Data Visualization Software, Data Visualization, Data Storytelling, Interactive Data Visualization, Plot (Graphics), Plotly, Matplotlib, Data Presentation, Dashboard, Dashboard Creation, Seaborn, Tableau Software, Scatter Plots, Histogram, Google Sheets, Microsoft Excel, Data Analysis, Python Programming, Cloud Applications, Business Communication
Intermediate · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Data Lakes, Data Visualization, Data Architecture, Amazon Web Services, Interactive Data Visualization, Data Engineering, Data Infrastructure, Data Warehousing, Data Processing, Data Access, Query Languages, Data Management, Data Transformation, Data Governance, Data Import/Export, Data Storage, Data Sharing, Data Science, Machine Learning
Beginner · Course · 1 - 3 Months

Skills you'll gain: Tableau Software, Business Intelligence, Data Storytelling, Business Analytics, Data Modeling, Data Visualization Software, Dashboard, Interactive Data Visualization, Data Visualization, Dashboard Creation, Data-Driven Decision-Making, Data Analysis, Data Wrangling, Data Cleansing, Data Preprocessing, Data Transformation, Extract, Transform, Load, Data Integration, Exploratory Data Analysis, Correlation Analysis
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Retrieval-Augmented Generation, LangChain, LLM Application, Large Language Modeling, Embeddings, Data Processing, Data Store, Data Access, Vector Databases, Prompt Engineering, Document Management
Beginner · Project · Less Than 2 Hours
Duke University
Skills you'll gain: Data Storytelling, Dashboard, Data Presentation, Tableau Software, Dashboard Creation, Data Visualization, Business Analytics, Interactive Data Visualization, Statistical Visualization, Process Improvement, Business Process, Business Process Improvement, Presentations, Data Visualization Software, Oral Expression, Data Analysis, Graphing, Analysis, Visualization (Computer Graphics), Stakeholder Communications
Mixed · Course · 1 - 3 Months

Duke University
Skills you'll gain: Apache Airflow, Vector Databases, Performance Tuning, Scalability, Database Management Systems, Database Management, Data Pipelines, MySQL, Data Import/Export
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Star Schema, Snowflake Schema, Data Warehousing, Data Modeling, Database Design, Data Architecture, Performance Tuning, Model Optimization, Business Analytics, Performance Measurement, Performance Metric, Business Metrics, Descriptive Analytics, Business Reporting
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Pivot Tables And Charts, Dashboard, Dashboard Creation, Microsoft Excel, Financial Modeling, Excel Macros, Data Presentation, Interactive Data Visualization, Data Import/Export, Spreadsheet Software, Data Modeling, Data Literacy, Forecasting, Workflow Management, Statistical Methods, Excel Formulas, Simulation and Simulation Software, Data Storytelling, Finance, Data Analysis
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Star Schema, Data Modeling, Database Design, Data Warehousing, Dashboard, Business Reporting, Dashboard Creation, Business Intelligence, Business Process, Business Intelligence Software, Self Service Technologies, Performance Tuning
Beginner · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Data Modeling, Data Infrastructure, Data Store, Databases, Big Data, Data Management, Database Management Systems, Real Time Data, NoSQL, Database Design, Data Processing, Apache Hadoop, Query Languages, Relational Databases, Data Structures, Data Analysis, Virtual Environment
Mixed · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Cloud Platform, Dashboard Creation, Data Presentation, Data Visualization Software, Data Import/Export, Big Data, Analytics, Cloud Computing
Beginner · Project · Less Than 2 Hours

28DIGITAL
Skills you'll gain: Data Strategy, Data-Driven Decision-Making, Big Data, Data Science, NoSQL, Data Modeling, Data Storage Technologies, Analytics, Business Analytics, Applied Machine Learning, Machine Learning Methods, Data Analysis, Risking, Data Ethics, Machine Learning, Unsupervised Learning, Regression Analysis, Descriptive Analytics, Supervised Learning, Artificial Intelligence and Machine Learning (AI/ML)
Beginner · Course · 1 - 4 Weeks