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.

University of California, Irvine
Skills you'll gain: Data Storytelling, Dashboard Creation, Dashboard, Data Presentation, Data Visualization, Data Visualization Software, Interactive Data Visualization, Statistical Visualization, Plot (Graphics), Data Literacy, Tableau Software, Data Ethics, Exploratory Data Analysis, Descriptive Statistics, Data Analysis, Visual Storytelling, Market Data, Descriptive Analytics, Geospatial Information and Technology, Data Mapping
★ 4 (31) · Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Data Governance, Digital Transformation, Real Time Data, Google Cloud Platform, Business Transformation, Data Management, Data Warehousing, Data Transformation, Big Data, Looker (Software), Cloud Storage, Analytics, Business Intelligence, Governance, Data Processing, Dataflow, Data-Driven Decision-Making, Database Systems, Data Storage
★ 4.8 (927) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Splunk, Security Controls, Data Pipelines, Systems Administration, System Configuration, Identity and Access Management, Dataflow, Configuration Management, Enterprise Application Management, Debugging, Performance Tuning, Information Management, Distributed Computing, Data Management, Scalability, Data Storage
Mixed · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Agentic Workflows, MongoDB, Retrieval-Augmented Generation, Vector Databases, Generative AI Agents, Scalability, Model Context Protocol, Context Engineering, Data Architecture, Systems Design, Tool Calling, System Design and Implementation, Development Environment, Embeddings, PostgreSQL, Database Design, Object-Relational Mapping, Data Modeling, SQL
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Extract, Transform, Load, Data Pipelines, Data Integration, File Management, Scalability, File Systems, Data Processing, Context Management, Java, Java Programming, Data Transformation, Data Manipulation, Maintainability
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Relational Databases, Data Visualization, Data Modeling, Cloud Security, Databases, Database Management, Database Development, Inventory and Warehousing, Data Analysis Expressions (DAX), Cloud Management, Advanced Analytics, Cloud-Based Integration, Data Management, Performance Measurement, Data Governance, Microsoft Excel, Business Intelligence Software, Business Reporting, Cloud Storage, Spreadsheet Software
★ 4.5 (37) · Intermediate · Specialization · 3 - 6 Months

Fundação Instituto de Administração
Skills you'll gain: Strategic Marketing, Marketing Strategies, Marketing Analytics, Data-Driven Marketing, Digital Marketing, Data Visualization, Conversion Funnel Analysis, Consumer Behaviour, Sales Strategy, Marketing, Performance marketing, Marketing Planning, Customer Analysis, Digital Analysis, Marketing Strategy and Techniques, Marketing Operations, Marketing Effectiveness, Data Strategy, Data-Driven Decision-Making, Data Visualization Software
★ 4.4 (9) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Data Governance, Data Pipelines, Data Lakes, Metadata Management, Data Management, Data Infrastructure, Data Warehousing, Data Architecture, Google Cloud Platform, Data Integration, Analytics, Advanced Analytics, Data Security, Cloud Storage, Data Loss Prevention, Cloud Computing, Data Storage Technologies, Applied Machine Learning, Open Source Technology
★ 4.8 (23) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Lakes, Microsoft Azure, Extract, Transform, Load, Power BI, Data Governance, Data Integration, Data Architecture, Data Management, Data Pipelines, Dataflow, Data Warehousing, Data Transformation, Data Analysis, Data Security, Data Storage, Python Programming, Machine Learning
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Data Cleansing, Data Manipulation, Data Integration, R Programming, Data Wrangling, Data Preprocessing, Tidyverse (R Package), Data Processing, R (Software), Data Management
★ 4.2 (6) · Intermediate · Guided Project · Less Than 2 Hours

Illinois Tech
Skills you'll gain: Database Management Systems, Database Management, Database Administration, Database Software, Database Development, Database Design, Database Architecture and Administration, Database Application, Relational Databases, SQL, Data Modeling, Network Model, Query Languages, Data Maintenance, Data Integrity, Data Manipulation, Data Security, Diagram Design
Beginner · Course · 1 - 3 Months

Snowflake
Skills you'll gain: Data Engineering, Database Management, Databases, Data Pipelines, Continuous Deployment, Devops Tools, Change Control, DevOps, CI/CD, Command-Line Interface, Version Control, Event Monitoring, Continuous Monitoring, Data Analysis
★ 4.6 (28) · Advanced · Course · 1 - 4 Weeks