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: Extensible Markup Language (XML), Extensible Languages and XML, Selenium (Software), Test Script Development, Scalability, Software Testing, Web Applications, Test Automation, Automation, Maintainability, Hypertext Markup Language (HTML)
Beginner · Specialization · 1 - 3 Months
Skills you'll gain: Vue.JS, HTML and CSS, Hypertext Markup Language (HTML), Web Applications, JavaScript Frameworks, Front-End Web Development, Web Design and Development, Cascading Style Sheets (CSS), Web Components, Web Development, Javascript, Data Persistence
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Agentic Workflows, AI Workflows, Generative AI Agents, LLM Application, Agentic systems, Model Deployment, AI Integrations, Generative AI, Artificial Intelligence, Predictive Modeling, Data Integration
Intermediate · Course · 1 - 3 Months

National Taiwan University
Skills you'll gain: Plot (Graphics), Web Scraping, Machine Learning, Machine Learning Algorithms, User Interface (UI), Operational Analysis, Business Analytics, Python Programming, Programming Principles, User Interface (UI) Design, Computational Thinking, Object Oriented Programming (OOP), Numerical Analysis
Mixed · Course · 1 - 3 Months

Skills you'll gain: PL/SQL, Oracle Databases, Stored Procedure, SQL, Data Persistence, Database Development, Database Management Systems, Web Services, Data Storage Technologies, Authorization (Computing), File I/O, Debugging, File Management, Network Protocols
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Model Optimization, Fine-tuning, Model Deployment, Data Preprocessing, Model Training, Model Evaluation, Technical Communication, Computer Vision, Image Analysis, Application Deployment, Technical Documentation, Technical Writing, Professional Development, Professional Networking, Artificial Intelligence and Machine Learning (AI/ML), Data Pipelines, Storytelling
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Process Improvement and Optimization, Dashboard, Process Optimization, Power BI, Stakeholder Communications, Dashboard Creation, Management Reporting, Financial Data, Financial Analysis, Process Improvement, Financial Acumen, Stakeholder Engagement, Business Metrics, Data Presentation, Business Reporting, Presentations, Data-Driven Decision-Making, Performance Reporting, Business Intelligence Software, Data Integration
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Preprocessing, Applied Machine Learning, Unsupervised Learning, Machine Learning Methods, Correlation Analysis, Data Cleansing, R Programming, Data Quality, Machine Learning Software, Machine Learning, Data Validation, Data Wrangling, Machine Learning Algorithms, Data Integrity, Data Import/Export
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Data Persistence, Programming Principles, Code Reusability, Python Programming, File Management, Computer Science
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Operations Research, Resource Allocation, Simulation and Simulation Software, Microsoft Excel, Business Analytics, Data-Driven Decision-Making, Operational Analysis, Transportation Operations, Analytics, Risk Modeling, Business Operations, Risk Analysis, Spreadsheet Software, Process Optimization, Statistical Methods, Business Modeling, Decision Making, Model Optimization, Logistics, Production Planning
Mixed · Course · 1 - 3 Months

Universiteit Leiden
Skills you'll gain: Data Analysis, Research Design, Epidemiology, Statistical Inference, Statistical Analysis, Analysis, Clinical Research, Biostatistics, Quantitative Research, Public Health, Statistical Methods, Health Care, Probability & Statistics, Research Methodologies, Research, Clinical Trials, Science and Research, Medical Science and Research, Statistics, Descriptive Statistics
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Collaborative Software, Project Documentation, Organizational Skills, Document Management, Content Management Systems, Collaboration, Productivity Software, Project Management Software, Workflow Management, Content Development and Management, Digital Publishing, Information Architecture, Data Management, Content Creation, Cloud Platforms
Intermediate · Guided Project · Less Than 2 Hours