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.

Johns Hopkins University
Skills you'll gain: Rmarkdown, Shiny (R Package), Ggplot2, Tidyverse (R Package), Data Visualization, Spatial Data Analysis, Statistical Visualization, Dashboard Creation, Scatter Plots, Plot (Graphics), Dashboard, R (Software), Data Import/Export, Interactive Data Visualization, R Programming, Data Visualization Software, Spatial Analysis, Geospatial Information and Technology, Data Science, Data Analysis
★ 4.8 (452) · Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Data Lakes, Data Warehousing, Apache Hive, Data Pipelines, Analysis, Automation
Advanced · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Predictive Modeling, Data Visualization, Predictive Analytics, Statistical Analysis, Data Manipulation, Data Analysis, Data Science, Statistical Methods, Data Visualization Software, Statistics, Data Wrangling, Data Cleansing, Analytics, Data Preprocessing, Data-Driven Decision-Making, Business Analytics, Model Evaluation, Data Collection, Machine Learning
★ 4.7 (25) · Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Cloud Engineering, Cloud-Native Computing, Software Engineering, Cloud Development, Distributed Computing, Cloud Storage, Engineering Software, Extract, Transform, Load, Google Cloud Platform, Software Engineering Tools, Big Data, Software Development, Cloud Computing, Serverless Computing, Data Infrastructure, Cloud Technologies, Cloud Services, Cloud Solutions, Data Pipelines, Command-Line Interface
★ 4.1 (92) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Dashboard, Dashboard Creation, IBM Cognos Analytics, Data Visualization, Data Presentation, Presentations, Data Wrangling, Exploratory Data Analysis, Business Intelligence Software, Statistical Visualization, Data Analysis, Interactive Data Visualization, Microsoft PowerPoint, Data Visualization Software, Data Cleansing, Business Intelligence, Looker (Software), Data Manipulation, Web Scraping, Data Collection
★ 4.6 (1.3K) · Advanced · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Data Lakes, Data Warehousing, Cloud Engineering, Data Architecture, Data Governance, Google Cloud Platform, Metadata Management, Cloud Storage, Data Storage, Data Management, Operational Data Store, Data Integration, Advanced Analytics, Analytics, Operational Databases, Data Access, Data Security
★ 4.7 (2.9K) · Intermediate · Course · 1 - 3 Months

University of Maryland, College Park
Skills you'll gain: Sampling (Statistics), Sample Size Determination, Surveys, Survey Creation, Data Collection, Statistical Analysis, Data Analysis Software, Statistical Software, Interviewing Skills, Research Design, STATA (Software), R (Software), Data Integration, Data Validation, Data Ethics, Data Analysis, Stata, Data Quality, Statistical Programming, R Programming
★ 4.4 (1.5K) · Beginner · Specialization · 3 - 6 Months

Northeastern University
Skills you'll gain: Information Privacy, Data Ethics, Law, Regulation, and Compliance, Data Security, Journalism, Regulation and Legal Compliance, Emerging Technologies, Algorithms, Artificial Intelligence
★ 4.8 (719) · Beginner · Course · 1 - 4 Weeks

Starweaver
Skills you'll gain: Virtual Networking, Network Protocols, Network Planning And Design, Network Security, General Networking, Network Administration, Communication Systems, Network Performance Management, Network Architecture, Network Monitoring, Virtualization, Network Routing, Digital Communications, Network Infrastructure, Computer Networking, TCP/IP, Routing Protocols, Cybersecurity, Emerging Technologies, Cyber Security Strategy
Beginner · Course · 1 - 4 Weeks

O.P. Jindal Global University
Skills you'll gain: Big Data, Apache Spark, Apache Hadoop, Apache Hive, NoSQL, Database Systems, Data Mining, Cloud Applications, Cloud Solutions, Real Time Data, Cloud Computing, Data Processing, Query Languages, Distributed Computing, Applied Machine Learning, Scripting Languages, Data Manipulation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Architecture, Distributed Computing, Data Modeling, Scalability, Data Management, Data Strategy, Software Architecture, Semantic Web, Continuous Deployment, Information Architecture, CI/CD, Maintainability, AI Enablement, Organizational Structure, AI Integrations, Product Automation, Interoperability, Data Analysis, Generative AI
Intermediate · Course · 1 - 3 Months
Duke University
Skills you'll gain: Database Design, MySQL, Relational Databases, SQL, Database Development, Database Management, Data Modeling, Database Systems, Query Languages, Databases, Business Analytics, Big Data, Business Analysis, Data Analysis, Data Management
★ 4.7 (4.1K) · Mixed · Course · 1 - 3 Months