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.

Nanjing University
Skills you'll gain: Data Analysis, Statistical Analysis, Financial Data, Data Presentation, Data Processing, User Interface (UI), Object Oriented Programming (OOP), Data Capture, Pandas (Python Package), NumPy, Python Programming, Graphical Tools, Data Manipulation, Matplotlib, Data Preprocessing
Mixed · Course · 1 - 3 Months

Skills you'll gain: Matplotlib, Plot (Graphics), Statistical Visualization, Data Visualization Software, Interactive Data Visualization, Data Presentation, Scatter Plots, Jupyter, Histogram, Box Plots, Graphing, Computer Programming, Development Environment, Animations
Mixed · Course · 1 - 4 Weeks

Università di Napoli Federico II
Skills you'll gain: NoSQL, Apache Hadoop, Apache Hive, Big Data, Database Systems, Artificial Intelligence, Databases, Distributed Computing, Data Processing, Scalability, Business Intelligence, Data Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Dataflow, Data Pipelines, Real Time Data, Data Processing, Jupyter, File I/O, Google Cloud Platform, JSON, Application Programming Interface (API), SQL, Analytics
Advanced · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Cloud Platform, Data Transformation, Dataflow, Data Pipelines, Data Lakes, Model Deployment, Data Warehousing, Real Time Data, Extract, Transform, Load, Apache Kafka, Data Infrastructure, Data Architecture, Data Quality, MLOps (Machine Learning Operations), Apache Spark, Tensorflow, Data Migration, Data Governance, Unstructured Data, Data Processing
Intermediate · Professional Certificate · 3 - 6 Months

Google Cloud
Skills you'll gain: Digital Transformation, Google Cloud Platform, Big Data, Cloud Storage, Looker (Software), Cloud Computing, Machine Learning, Analytics, Data Management, Data Lakes, Unstructured Data, Data Quality, Business Intelligence, Data-Driven Decision-Making, Customer experience improvement, Artificial Intelligence
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Looker (Software), Order Fulfillment, Customer Analysis, Business Analytics, Data-Driven Decision-Making, Business Intelligence, Business Intelligence Software, Google Cloud Platform, Dashboard, Business Analysis, Data Visualization, Data Analysis, Sales Management, Sales, Product Knowledge, Enterprise Resource Planning
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Network Security, Network Troubleshooting, Software-Defined Networking, Network Monitoring, Threat Modeling, Virtual Networking, TCP/IP, Network Architecture, Computer Networking, Network Performance Management, Network Protocols, General Networking, Cybersecurity, Network Infrastructure, Local Area Networks, Network Analysis, OSI Models, Network Switches
Build toward a degree
Beginner · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Search Engine Marketing, Digital Marketing, Content Marketing, Web Analytics and SEO, Search Engine Optimization, Content Strategy, Marketing Planning, Marketing Strategy and Techniques, Social Media Marketing, Driving engagement, Social Media Strategy, Cross-Channel Marketing, Social Media, Marketing Automation, Campaign Management, Customer experience strategy (CX), User Experience, Brand Management, Customer Relationship Management (CRM) Software, AI Personalization
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Bioinformatics, Image Analysis, Bayesian Statistics, Data Science, Applied Machine Learning, Data Structures, Machine Learning Methods, Statistical Hypothesis Testing, Statistical Methods, Computer Vision, Algorithms, Statistical Inference, Probability Distribution, Medical Imaging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Microsoft Copilot, Microsoft Excel, Data Cleansing, Data Visualization Software, Spreadsheet Software, Trend Analysis, Forecasting, Data Manipulation, Sales, Data Analysis, Artificial Intelligence
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Import/Export, Data Analysis, Exploratory Data Analysis, Java, Data Processing, Data Manipulation, Java Programming, Statistics
Intermediate · Guided Project · Less Than 2 Hours