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 Colorado Boulder
Skills you'll gain: OSI Models, Network Security, TCP/IP, Network Architecture, Network Protocols, Network Routing, Network Routers, Computer Networking, Infrastructure Security, Routing Protocols, Public Key Infrastructure, Network Model, Cryptographic Protocols, Web Applications, Application Servers
★ 4.6 (93) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Model Optimization, Model Deployment, AI Workflows, Scikit Learn (Machine Learning Library), Model Evaluation, Data Preprocessing, Version Control
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: TCP/IP, System Programming, Network Protocols, Program Development, Memory Management, Hardware Architecture, Computer Hardware
★ 4.6 (53) · Intermediate · Course · 1 - 3 Months

University of Washington
Skills you'll gain: Power BI, Interactive Data Visualization, Data Modeling, Data Transformation, Business Requirements, Model Optimization, Data Presentation, Star Schema, Data Visualization Software, Snowflake Schema, Relational Databases, Data Access, Data Integration, Requirements Elicitation, Data Import/Export, Data Cleansing, Requirements Analysis, Data Analysis, Stakeholder Management, Decision Making
Beginner · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Clinical Research Ethics, Medical Science and Research, Healthcare Ethics, Quantitative Research, Clinical Research, Statistical Methods, Scientific Methods, Statistical Analysis, Sampling (Statistics), Science and Research, Statistical Hypothesis Testing, Responsible AI, Informed Consent, Technical Writing, Statistical Inference, Artificial Intelligence, Sample Size Determination
★ 4.9 (73) · Beginner · Course · 3 - 6 Months

Skills you'll gain: Financial Data, Data-Driven Decision-Making, Profit and Loss (P&L) Management, Banking Services, Risk Modeling, Decision Intelligence, Lending and Underwriting, Financial Statement Analysis, Applied Machine Learning, Financial Systems, Consumer Lending, Operational Analysis, Loans, Anomaly Detection, Statistical Machine Learning, Financial Regulation, Regulatory Compliance, Benchmarking
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Data Encryption Standard, Advanced Encryption Standard (AES), Cryptography, Encryption, Key Management, Brute-force attacks, Algorithms
★ 4.5 (284) · Intermediate · Course · 1 - 3 Months

Duke University
Skills you'll gain: Risk Modeling, Portfolio Risk, Financial Market, Risk Management, Market Data, Risk Analysis, Probability Distribution, R (Software), Financial Data, Return On Investment, R Programming, Portfolio Management, Statistical Programming, Financial Analysis, Securities (Finance), Equities, Time Series Analysis and Forecasting, Statistical Modeling, Data Access
★ 4.3 (257) · Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: OS Process Management, Operating Systems, System Programming, Performance Tuning, Data Structures, Event-Driven Programming, Data Access
★ 4.4 (36) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Portfolio Risk, Portfolio Management, Risk Management, Financial Market, Investments, Correlation Analysis, Analysis, Statistics
★ 4.5 (290) · Intermediate · Guided Project · Less Than 2 Hours

28DIGITAL
Skills you'll gain: General Data Protection Regulation (GDPR), Case Law, Information Privacy, Court Systems, Law, Regulation, and Compliance, European History, Ancient History, Data Security, Regulation and Legal Compliance, Data Sharing
★ 4.4 (98) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Statistical Hypothesis Testing, LangChain, AI Orchestration, Generative AI Agents, CrewAI, Statistical Methods, Agentic Workflows, Statistical Analysis, Data Transformation, Agentic systems, Statistical Inference, Business Intelligence, Key Performance Indicators (KPIs), Data-Driven Decision-Making, Performance Metric, Descriptive Analytics, Data Analysis, Correlation Analysis, Event Monitoring
Intermediate · Course · 1 - 4 Weeks