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: Data Science, Data Literacy, Organizational Effectiveness, Project Design, Statistics, Machine Learning
Mixed · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Decision Intelligence, Responsible AI, Generative AI Agents, Predictive Modeling, Agentic Workflows, Decision Support Systems, Business Intelligence, Data-Driven Decision-Making, Strategic Decision-Making, Decision Making, Business Analytics, Agentic systems, MLOps (Machine Learning Operations), Forecasting, Data Storytelling, Predictive Analytics, Machine Learning, Scikit Learn (Machine Learning Library), Data Security, Text Mining
Intermediate · Specialization · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Internet Of Things, Networking Hardware, Network Infrastructure, Network Routers, Electrical Wiring, General Networking, Embedded Software, Network Switches, Network Protocols, Network Architecture, Security Controls, Cloud Infrastructure, Wireless Networks, Network Routing, Local Area Networks, Telecommunications, Communication Systems, Distributed Computing, Python Programming, Machine Learning
Intermediate · Specialization · 3 - 6 Months

Knowledge Accelerators
Skills you'll gain: General Data Protection Regulation (GDPR), Information Privacy, Personally Identifiable Information, Regulatory Compliance, Law, Regulation, and Compliance, Compliance Training, Compliance Management, Legal Risk, Regulation and Legal Compliance, Data Ethics, Data Governance, Data Security, Data Management, Data Integrity, Data Processing, Accountability
Beginner · Course · 1 - 3 Months

Real Madrid Graduate School Universidad Europea
Skills you'll gain: Artificial Intelligence, Performance Analysis, Internet Of Things, Automation, Augmented and Virtual Reality (AR/VR), Technology Strategies, Machine Learning, Personalized Service, Innovation, Deep Learning, Digital Transformation, Big Data, Analytical Skills, Predictive Analytics, Natural Language Processing, Health Technology, Ethical Standards And Conduct, Data Analysis, Data Security, User Experience
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Code Reusability, Kotlin, Object Oriented Programming (OOP), Programming Principles, Object Oriented Design, Android Development, Data Structures, Computer Programming, Mobile Development
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Model Deployment, Federated Learning, Tensorflow, Transfer Learning, Model Training, Model Evaluation, Machine Learning, Data Visualization
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Debugging, Code Reusability, Algorithms, Problem Solving, Data Processing, Computational Logic, Python Programming, Software Development, Data Analysis, Scripting Languages
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Rmarkdown, Knitr, Surveys, Survey Creation, Data Quality, Sample Size Determination, Statistical Hypothesis Testing, Data Governance, Market Research, Regression Analysis, Predictive Modeling, Quantitative Research, Data Analysis, Statistical Analysis, Key Performance Indicators (KPIs), R Programming, Excel Formulas, Business Intelligence, Data Visualization, Performance Metric
Intermediate · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Exploratory Data Analysis, Statistical Visualization, Data Visualization Software, R (Software), R Programming, Ggplot2, Plot (Graphics), Statistical Methods, Data Analysis, Data Literacy, Graphing, Statistical Analysis, Unsupervised Learning, Statistical Programming, Dimensionality Reduction, Color Theory, Analytics
Mixed · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Internet Of Things, Security Engineering, Information Systems Security, Wireless Networks, Infrastructure Security, General Networking, Network Security, Cybersecurity, Security Controls, IBM Cloud, Computing Platforms, Cloud Platforms, Cryptography, Advanced Encryption Standard (AES), Network Protocols, Market Opportunities, Automation, Emerging Technologies, Endpoint Security
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), File I/O, Object Oriented Design, Java, Java Programming, File Management, Application Development, File Systems, Computer Programming, Programming Principles, Program Development, Data Structures, Code Reusability, Data Management
Intermediate · Course · 1 - 3 Months