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 Leeds
Skills you'll gain: Cryptographic Protocols, Cryptography, Encryption, Public Key Cryptography Standards (PKCS), Data Security
★ 4.4 (16) · Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Statistical Inference, Statistical Hypothesis Testing, Statistical Reporting, Statistical Analysis, R (Software), Statistics, Data Analysis, Probability & Statistics, Statistical Methods, Statistical Programming, Data Analysis Software, Statistical Software, R Programming, Sampling (Statistics), Probability Distribution
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Budgeting, Data Visualization, Google Sheets, Productivity Software, Budget Management, Spreadsheet Software, Presentations, User Accounts, Data Sharing
★ 4.6 (333) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Unsupervised Learning, Data Visualization, Machine Learning Methods, Machine Learning Algorithms, Applied Machine Learning, Scientific Visualization, Machine Learning, Model Training, Statistical Machine Learning, Data Mining, Statistical Methods, Algorithms, Python Programming, Development Environment
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Dashboard, Dashboard Creation, Data Warehousing, Data Presentation, Relational Databases, Database Development, Data Access, Database Management, SQL, Query Languages, Data Management, Data Analysis, Data Analysis Software, Cloud Computing, Benchmarking, Market Share
★ 4.4 (56) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Swift Programming, Apple iOS, iOS Development, Unit Testing, Apple Xcode, Code Reusability, Mobile Development, Software Testing, Object Oriented Programming (OOP), Data Structures, Object Oriented Design, Application Development, Functional Design
★ 4.7 (93) · Intermediate · Course · 1 - 4 Weeks
Khalifa University
Skills you'll gain: Environmental Management Systems, Environment Health And Safety, Environmental Monitoring, Environmental Regulations, Environmental Laws, Hazardous Waste Operations And Emergency Response Standard (HAZWOPER), Health And Safety Standards, Emergency Response, Regulatory Compliance, Risk Analysis, Sustainability Standards, Risk Management, Incident Management, Waste Minimization
★ 4.9 (76) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Transportation, Supply Chain, and Logistics, Supply Chain, Logistics, Supply Chain Systems, Supply Chain Management, Logistics Management, Supply Management, Supplier Performance Management, Performance Measurement, Materials Management, Transportation Management, Transportation Operations, Operational Efficiency, E-Commerce, Systems Thinking, Business Planning, Supply Chain Planning, Market Analysis, Business, Business Administration
★ 4.7 (59) · Beginner · Specialization · 1 - 3 Months

University of Copenhagen
Skills you'll gain: Diagnostic Tests, Pathology, Physiology, General Medical Tests and Procedures, Laboratory Testing, Precision Medicine, Biochemistry, Chronic Diseases, Endocrinology, Treatment Planning, Patient Treatment, Pharmacology, Medical Ultrasonography, Nutrition and Diet, Medical Science and Research, Bioinformatics, Epidemiology
★ 4.8 (137) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Software-Defined Networking, Network Infrastructure, Virtual Networking, Infrastructure Architecture, Software-Defined Data Center (SDDC), Network Architecture, General Networking, Network Engineering, Virtualization, Cloud Deployment, Computing Platforms, Digital Transformation
★ 4.5 (497) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Sampling (Statistics), Data Mining, Statistical Hypothesis Testing, Probability, Statistical Machine Learning, Probability & Statistics, Linear Algebra, Statistical Methods, Statistical Analysis, Statistical Inference, Data Analysis, Probability Distribution, Data Science, Statistics, Machine Learning Methods, Applied Machine Learning, Unsupervised Learning, Machine Learning Algorithms, Machine Learning, Supervised Learning
Mixed · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Responsible AI, MLOps (Machine Learning Operations), Data Preprocessing, Model Deployment, Data Ethics, Apache Mahout, AI Security, Applied Machine Learning, Classification Algorithms, CI/CD, Java, Continuous Deployment, Java Programming, Machine Learning Software, Jenkins, Deep Learning, Machine Learning, Spring Boot, Natural Language Processing, Reinforcement Learning
Intermediate · Specialization · 1 - 3 Months