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.

Princeton University
Skills you'll gain: Theoretical Computer Science, Data Structures, Computer Science, Computer Architecture, Computer Systems, Algorithms, Computer Programming, Computational Logic, Java Programming, Computer Hardware, Scalability
★ 4.7 (765) · Intermediate · Course · 1 - 3 Months

Automatic Data Processing, Inc. (ADP)
Skills you'll gain: Payroll, Payroll Administration, Payroll Tax, Payroll Processing, Payroll Reporting, Non-Profit Accounting, Specialized Accounting, Record Keeping, Accounting, Tax Compliance, Income Tax, Tax Laws, Law, Regulation, and Compliance, Organizational Structure, Data Analysis
★ 4.8 (96) · Beginner · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Stored Procedure, PostgreSQL, SQL, Database Management, Database Design, Relational Databases, Query Languages, Data Transformation, Data Manipulation, Data Import/Export, Data Integrity, Transaction Processing, Performance Tuning, Algorithms
★ 4.7 (338) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: File I/O, Data Import/Export, C++ (Programming Language), C and C++, Programming Principles, Data Structures, File Management, Computer Programming, Data Store, Memory Management, Computer Science, Development Environment
★ 4.7 (238) · Beginner · 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
★ 4 (70) · Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Database Design, Software Design, Application Security, User Experience Design, Vulnerability Assessments, Database Theory, Unified Modeling Language, Unit Testing, Usability, UI/UX Research, Threat Modeling, Usability Testing, User Interface and User Experience (UI/UX) Design, Vulnerability Management, Data Flow Diagrams (DFDs), Relational Databases, Software Visualization, Security Software, Systems Development Life Cycle, Software Development Life Cycle
★ 4.6 (438) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: PL/SQL, Oracle Databases, SQL, Stored Procedure, Computational Thinking, Computational Logic, Programming Principles, Code Reusability, Business Logic, Data Integrity
★ 4.6 (14) · Mixed · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Electronic Medical Record System, Electronic Medical Record, Medical Records, Clinical Informatics, Health Information Management and Medical Records, Health Technology, Health Informatics, Health Information Management, Clinical Documentation, Decision Support Systems, Clinical Data Management, Technical Support, End User Training and Support, Patient Registration, Technical Support and Services, Information Technology, Databases, Change Control, Desktop Support, Help Desk Support
★ 4.8 (445) · Mixed · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Generative AI, Generative Model Architectures, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, AI literacy, Machine Learning Algorithms, Scalability
★ 4.9 (11) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Dashboard, Dashboard Creation, Tableau Software, Interactive Data Visualization, Financial Reporting, Data Presentation, Financial Data, Management Reporting, Business Reporting, Financial Statements, Business Intelligence, Financial Acumen, Financial Analysis, Data Visualization Software, Performance Analysis, Key Performance Indicators (KPIs)
Intermediate · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Feature Engineering, Data Preprocessing, Tensorflow, Dataflow, Data Transformation, Data Processing, Keras (Neural Network Library), Data Store, Applied Machine Learning, Machine Learning Methods, Statistical Machine Learning, Machine Learning
★ 4.5 (15) · Intermediate · Course · 1 - 3 Months
Johns Hopkins University
Skills you'll gain: Clinical Monitoring, Sample Size Determination, Clinical Trials, Clinical Research, Statistical Reporting, Sampling (Statistics), Statistical Analysis, Data Analysis, Statistical Methods, Patient Safety, Bayesian Statistics, Data Presentation, Communication
★ 4.7 (91) · Beginner · Course · 1 - 3 Months