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: MySQL Workbench, MySQL, Database Management Systems, Database Software, Database Management, Data Manipulation, Data Management, SQL, Databases, Information Management, Query Languages, Data Integration, Data Science
★ 4.6 (21) · Beginner · Guided Project · Less Than 2 Hours
CertNexus
Skills you'll gain: Extract, Transform, Load, Data Wrangling, Data Preprocessing, Data Cleansing, Data Processing, Data Transformation, Data Integration, Data Import/Export, Data Collection, Data Mining, Data Storage
★ 4.8 (39) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Governance, General Data Protection Regulation (GDPR), Data Management, Metadata Management, Compliance Management, Data Integration, Cost Reduction, Data Maintenance, Data Processing, Information Privacy, Data Storage, Data Quality, Extract, Transform, Load, Scalability, Data Validation, Expense Management, Automation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Transact-SQL, Transaction Processing, Database Management, Microsoft SQL Servers, Operational Databases, SQL, Data Manipulation, Relational Databases, Database Theory, Data Integrity, Data Access, Generative AI, AI Integrations, Performance Tuning
★ 4.3 (42) · Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Data Cleansing, Data Wrangling, Data Integration, Data Transformation, Data Processing, Data Manipulation, Data Preprocessing, Google Cloud Platform, Self Service Technologies
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Descriptive Statistics, Statistical Programming, R Programming, R (Software), Statistical Reporting, Data Quality, Data Preprocessing, Data Cleansing, Statistics, Data Processing, Statistical Methods, Statistical Software, Data Analysis Software, Statistical Analysis, Data Import/Export
★ 4.6 (93) · Beginner · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Data Import/Export, Web Scraping, Tidyverse (R Package), Data Wrangling, Data Integration, Data Manipulation, JSON, Data Transformation, Relational Databases, R (Software), Google Sheets, Unstructured Data, R Programming, Extensible Markup Language (XML), Spreadsheet Software, Databases, SQL, Data Structures, File I/O, Application Programming Interface (API)
★ 4.7 (51) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Manipulation, Data Processing, Data Wrangling, Data Pipelines, Data Transformation, Data Quality, Data Cleansing, Data Preprocessing, Data Import/Export, Extract, Transform, Load, Exploratory Data Analysis, Cloud-Based Integration, Google Analytics
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: SQL, Database Development, Database Management, Relational Databases, Data Manipulation, Databases, Data Import/Export, PostgreSQL, Database Management Systems, Data Integrity
★ 4.7 (113) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Supervised Learning, Data Preprocessing, Machine Learning, Time Series Analysis and Forecasting, Applied Machine Learning, Data Quality, Unsupervised Learning, Feature Engineering, Model Evaluation, Classification Algorithms, Regression Analysis
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Validation, Data Collection, Alteryx, Data Quality, Microsoft Excel, Data Integrity, Data Import/Export, Test Tools, Data Loss Prevention
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Retrieval-Augmented Generation, Vector Databases, LangChain, LLM Application, Embeddings, Application Frameworks, Vision Transformer (ViT), Data Quality
Intermediate · Course · 1 - 3 Months