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 Michigan
Skills you'll gain: Text Mining, Unstructured Data, Health Informatics, Natural Language Processing, Clinical Documentation, Model Evaluation, Data Processing, Deep Learning, Model Training, Applied Machine Learning, Feature Engineering, Machine Learning, Medical Terminology, Artificial Neural Networks, Supervised Learning, Python Programming, Computer Programming, Computer Programming Tools
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: MySQL, Google Cloud Platform, Data Migration, Database Management, SQL, Data Store, Big Data, Extract, Transform, Load, Data Pipelines, Data Management, Cloud Deployment
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Data Storytelling, Data Presentation, Data Visualization, Financial Data, Data Literacy, Storytelling, Data Visualization Software, Financial Acumen, Client Services, Visual Storytelling, Process Flow Diagrams, Data Analysis, Presentations, Finance, Analysis, Diagram Design, Communication, Communication Strategies, Customer Engagement, Prompt Engineering
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Dataflow, Azure Synapse Analytics, Performance Tuning, Microsoft Azure, System Monitoring, Data Engineering, Transact-SQL, Continuous Deployment, Star Schema, Power BI, PySpark, Data Cleansing, Data Analysis Expressions (DAX), Apache Spark, Analytics, Data Analysis, SQL, Azure Active Directory, Advanced Analytics, Microsoft Copilot
★ 4.6 (7) · Intermediate · Specialization · 1 - 3 Months

Nanjing University
Skills you'll gain: Data Mining, Data Analysis, Case Studies, Statistical Analysis, Financial Data, Data Structures, Financial Analysis, Data Presentation, Data Processing, User Interface (UI), Object Oriented Programming (OOP), Data Capture, Pandas (Python Package), NumPy, Python Programming, Data Wrangling, Web Scraping, Data Manipulation
★ 4.7 (1.6K) · Mixed · Course · 1 - 3 Months

Skills you'll gain: NumPy, Pandas (Python Package), File I/O, Image Analysis, Data Manipulation, Matplotlib, Web Design and Development, Computer Vision, Data Analysis, Plot (Graphics), Object Oriented Design, Python Programming, Database Systems, Application Design, Programming Principles, Code Reusability, Scripting, File Management, Data Structures, UI Components
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Redis, Data Store, Key Management, Data Structures, Data Storage, Data Management, Data Access, Performance Tuning, Memory Management
★ 4.9 (16) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Pivot Tables And Charts, Trend Analysis, Financial Data, Microsoft Excel, Data Quality, Data Validation, Spreadsheet Software, Excel Formulas, Strategic Decision-Making, Data Synthesis, Financial Analysis, Analysis, Data Analysis, Data-Driven Decision-Making, Statistical Reporting, Data Analysis Software, Descriptive Statistics, Business Reporting, Data Integrity
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apache Kafka, Apache Spark, Scala Programming, Real Time Data, Apache Hadoop, Apache Cassandra, Applied Machine Learning, Big Data, Data Processing, Application Deployment, Distributed Computing, Programming Principles, Cloud Deployment, Data Structures, Development Environment
Advanced · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Apache Kafka, Data Pipelines, Google Cloud Platform, Java, Cloud Platforms, Cloud API, Java Programming, Network Analysis
★ 3.8 (27) · Beginner · Project · Less Than 2 Hours

Skills you'll gain: Network Troubleshooting, Network Security, OSI Models, Network Monitoring, Network Performance Management, Network Architecture, Computer Networking, TCP/IP, General Networking, Local Area Networks, Cybersecurity, Network Analysis, Network Protocols, Network Infrastructure, Network Support, Information Systems Security, Software-Defined Networking, Network Administration, Network Planning And Design, Network Routing
★ 4.7 (27) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Snowflake Schema, Data Pipelines, Apache Airflow, Data Security, Data Governance, Data Architecture, Extract, Transform, Load, Apache Kafka, Performance Tuning, PySpark, Data Warehousing, Data Import/Export, Amazon S3, Amazon Web Services, Real Time Data, Data Processing, SQL, Stored Procedure, Role-Based Access Control (RBAC)
Intermediate · Course · 3 - 6 Months