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.

Northeastern University
Skills you'll gain: Database Management Systems, Data Modeling, Databases, Database Design, Database Systems, Database Management, Database Theory, Big Data, Unified Modeling Language, Database Architecture and Administration, Data Integration, Data Storage Technologies, Data Management, Apache Hadoop, Apache Spark, Conceptual Design, MongoDB
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Plotly, Histogram, Interactive Data Visualization, Scatter Plots, Plot (Graphics), Data Visualization, Data Analysis, Python Programming
★ 4.8 (10) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Storytelling, Data Visualization Software, Dashboard Creation, Dashboard, Data Analysis Software, Data Analysis, Advanced Analytics, Interactive Data Visualization, Data Manipulation, Data Presentation, Data Transformation, Data Sharing, Embeddings
★ 4.9 (16) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Rmarkdown, R (Software), Data Import/Export, R Programming, Ggplot2, Plot (Graphics), Data Manipulation, Plotly, Data Visualization, Web Scraping, Statistical Visualization, Interactive Data Visualization, Data Visualization Software, Data Wrangling, Tidyverse (R Package), Data Processing, Data Cleansing, Statistical Programming, Programming Principles, Data Structures
Beginner · Course · 1 - 3 Months

University at Buffalo
Skills you'll gain: Data Literacy, Data Ethics, Data-Driven Decision-Making, Analytics, Root Cause Analysis, Lean Methodologies, Six Sigma Methodology, Data Analysis, Operations, Operational Excellence, Case Studies, Lean Six Sigma, ISO 9000 Series, Lean Manufacturing, Quality Improvement, Process Improvement, Decision Making, Quality Management Systems, Data Quality, Data Security
★ 4.6 (138) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Apache Spark, Data Persistence, Big Data, Data Processing, Distributed Computing, Data Import/Export, JSON, Data Transformation, Performance Tuning
Mixed · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Generative AI, Descriptive Analytics, Data Literacy, Data-Driven Decision-Making, Data Analysis, Exploratory Data Analysis, Descriptive Statistics, Predictive Analytics, Prompt Engineering, Analytical Skills, Statistical Analysis, Decision Making
★ 4.5 (21) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Databricks, Data Governance, Microsoft Azure, Data Lakes, Real Time Data, Data Management, Data Integration, Data Pipelines, Metadata Management, Data Import/Export, User Provisioning, Performance Tuning
★ 4.9 (7) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Excel, Excel Formulas, Data Storytelling, Mergers & Acquisitions, Data Transformation, Interactive Data Visualization, Spreadsheet Software, Data Presentation, Business Valuation, Financial Modeling, Case Studies, Analysis, Financial Statement Analysis, Financial Analysis, Market Data, Benchmarking
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Applied Mathematics, Model Optimization, Estimation, Calculus, Cost Estimation, Mathematical Modeling, Derivatives
★ 4.7 (60) · Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Relational Databases, Data Visualization, Data Store, Web Scraping, Database Management, Scatter Plots, Data Manipulation, SQL, JSON, Application Programming Interface (API), Python Programming, Extensible Markup Language (XML), Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Dashboard Creation, Dashboard, Azure Synapse Analytics, Microsoft Azure, Data Storage Technologies, Microsoft SQL Servers, Data Storage, Cloud Engineering, Data Store, Data Architecture, Performance Tuning, Query Languages, Database Design, SQL, NoSQL, Data Processing, Cloud Solutions, Process Optimization, Data Modeling, System Monitoring
Intermediate · Course · 1 - 4 Weeks