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: Financial Modeling, Revenue Forecasting, Working Capital, Cash Flows, Business Valuation, Financial Forecasting, Expense Management, Financial Data, Cash Flow Forecasting, Operating Expense, Depreciation, Financial Analysis, Financial Statement Analysis, Financial Statements, Asset Management, Business Metrics, Balance Sheet, Forecasting, Equities, Capital Expenditure
★ 4.7 (97) · Mixed · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Digital Marketing Tools, Innovation, Marketing, Promotional Strategies, Marketing Strategies, Marketing Management, New Product Development, Product Development, Digital Brand Strategy, Strategic Marketing, Digital Media Strategy, Digital Marketing, Consumer Behaviour, Product Promotion, Market Dynamics, Business-To-Consumer, Digital Transformation, Customer Engagement, Branding
★ 4.6 (46) · Beginner · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Android Development, Mobile Development, Android Studio, Android (Operating System), Data Persistence, Application Development, Data Storage Technologies, Data Store, User Interface (UI) Design, UI Components, Data Storage, User Interface (UI), Application Lifecycle Management, Authorization (Computing), Data Access, Database Management
★ 4.3 (334) · Intermediate · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Financial Policy, Financial Systems, Banking, Financial Market, Bank Regulations, Financial Regulation, Capital Markets, Market Liquidity, Economics, Loans, Economics, Policy, and Social Studies, Credit Risk, General Lending, Crisis Management, Crisis Intervention
★ 4.7 (120) · Intermediate · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Clinical Research Ethics, Medical Science and Research, 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

University of Colorado System
Skills you'll gain: Requirements Elicitation, Software Design Documents, Requirements Analysis, Mockups, Security Requirements Analysis, Interviewing Skills, User Requirements Documents, Systems Development Life Cycle, Data Flow Diagrams (DFDs), Storyboarding, Functional Requirement, Goal Setting, Software Development Methodologies, Software Documentation, Diagram Design, Agile Methodology, Product Requirements, Unified Modeling Language, Risk Management Framework, Risking
★ 4.5 (857) · Beginner · Specialization · 3 - 6 Months

EDUCBA
Skills you'll gain: C (Programming Language), Embedded Systems, Embedded Software, Debugging, System Programming, Systems Architecture, Hardware Architecture, Microarchitecture, Data Structures, Peripheral Devices, Memory Management, Computational Logic
★ 4.1 (135) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Computer Vision, Dashboard, Dashboard Creation, IBM Cloud, Responsible AI, Artificial Intelligence, Data Ethics, Image Analysis, Cloud Computing, Data Presentation, Interactive Data Visualization, Data Manipulation, No-Code Development, AI Enablement, AI Integrations, AI literacy, Context Management, Artificial Neural Networks, Cloud Applications, WordPress
★ 4.7 (448) · Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: iOS Development, Apple iOS, Swift Programming, Apple Xcode, Code Review, UI Components, Unit Testing, Mobile Development, User Interface (UI), User Interface (UI) Design, Application Development, User Interface and User Experience (UI/UX) Design, Interactive Design, Code Reusability
★ 4.7 (248) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Unsupervised Learning, Feature Engineering, Model Evaluation, Applied Machine Learning, Predictive Modeling, Supervised Learning, Clinical Informatics, Machine Learning, Machine Learning Methods, Model Training, Health Informatics, Machine Learning Algorithms, Data Preprocessing, Predictive Analytics, Decision Tree Learning, Time Series Analysis and Forecasting, Logistic Regression, Forecasting, Classification Algorithms, Dimensionality Reduction
Intermediate · Course · 1 - 4 Weeks

National Taiwan University
Skills you'll gain: Operations Research, Network Model, Statistical Machine Learning, Case Studies, Applied Mathematics, Mathematical Modeling, Machine Learning, Model Optimization, Mathematical Theory & Analysis, Transportation Operations, Business Analytics, Advanced Mathematics, Linear Algebra, Resource Allocation, Classification Algorithms, Algorithms
★ 4.9 (97) · Advanced · Course · 1 - 3 Months

Logical Operations
Skills you'll gain: Business Reporting, Microsoft Access, Report Writing, Microsoft Excel, Data Presentation, Business Intelligence Software, SAP Applications, Data Analysis Software, Business Intelligence, Data Analysis, Microsoft Office
Mixed · Course · 1 - 4 Weeks