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.

Automatic Data Processing, Inc. (ADP)
Skills you'll gain: Performance Metric, Process Improvement, Change Management, Key Performance Indicators (KPIs), Recruitment, Performance Improvement, Performance Reporting, Performance Analysis, Performance Measurement, Business Metrics, Talent Acquisition, Recruitment Strategies, Continuous Improvement Process, Benchmarking
★ 5 (9) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Azure, Unsupervised Learning, Applied Machine Learning, Predictive Modeling, Model Deployment, Data Transformation, Model Evaluation, Exploratory Data Analysis, Data Processing, Machine Learning Algorithms, Machine Learning, Artificial Intelligence and Machine Learning (AI/ML), Cloud Computing, User Accounts
★ 4.9 (11) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Electrical Equipment, Electrical Systems, Architectural Drawing, Electrical Power, AutoCAD, Computer-Aided Design, Autodesk, Blueprint Reading, Electrical Engineering, Engineering Drawings, Electric Power Systems, Basic Electrical Systems, Engineering Calculations, Energy and Utilities, Data Entry, Estimation
★ 4.7 (15) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Institutional Review Board (IRB), Research, Research Design, Consumer Behaviour, Influencing, Persuasive Communication, Ethical Standards And Conduct, Marketing Psychology, Experimentation, Informed Consent, Market Research, Marketing, Analysis, Data Analysis
★ 4.6 (7) · Intermediate · Course · 1 - 3 Months
University of Maryland, College Park
Skills you'll gain: Data-Driven Marketing, Online Advertising, LLM Application, Advertising, Branding, Natural Language Processing, Machine Learning Algorithms
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: Linux, Linux Administration, Linux Commands, File Management, Linux Servers, User Accounts, Operating System Administration, File Systems, OS Process Management, Unix Shell, Command-Line Interface, User Provisioning, General Networking, Shell Script, Operating Systems, Remote Access Systems, Scripting, Dataflow, System Monitoring
★ 4.6 (10) · Intermediate · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Research Design, Research Methodologies, Science and Research, Social Sciences, Surveys, Qualitative Research, Institutional Review Board (IRB), Survey Creation, Statistical Analysis, Data Collection, Higher Education, Correlation Analysis, Sample Size Determination, Ethical Standards And Conduct, Academic Advising, Probability & Statistics, Regression Analysis, Informed Consent
★ 4.7 (20) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Blockchain, Front-End Web Development, Application Development, Web Development, Transaction Processing, Development Testing, Frontend Integration, Cryptography, FinTech, Emerging Technologies, Software Design, HTML and CSS, Software Architecture, Test Script Development, User Interface (UI) Design, Experience Design, Javascript, Application Deployment, Payment Systems, Data Management
★ 4.8 (24) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Medical Privacy, Personally Identifiable Information, Cyber Security Strategy, Health Insurance Portability And Accountability Act (HIPAA) Compliance, Information Privacy, Security Awareness, Data Security, Cybersecurity, Health Information Management and Medical Records, Cyber Attacks, Information Assurance, Security Controls, Health Information Management, General Data Protection Regulation (GDPR), Computer Security Awareness Training, Data Sharing, Security Strategy, Authorization (Computing), Healthcare Industry Knowledge, Health Care Procedure and Regulation
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Email Security, Data Loss Prevention, Gmail, Google Workspace, User Provisioning, Mobile Security, Security Management, Security Controls, Authentications, Threat Management, User Accounts, Cloud Security, Malware Protection, Cloud Management, Data Security, Cloud Services, Systems Administration, Role-Based Access Control (RBAC), Document Management, File Management
★ 4.2 (19) · Beginner · Specialization · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Financial Statement Analysis, Financial Statements, Financial Modeling, Financial Analysis, Working Capital, Business Valuation, Financial Data, Financial Forecasting, Income Statement, Balance Sheet, Budget Management, Forecasting, Business Metrics, Accounting and Finance Software, Cash Flows, Revenue Forecasting, Budgeting, Variance Analysis, Trend Analysis, Spreadsheet Software
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Centers, Network Security, Network Administration, Virtualization and Virtual Machines, Network Troubleshooting, Virtual Machines, Network Monitoring, Wide Area Networks, Virtualization, Wireless Networks, Firewall, Event Monitoring, Cloud Infrastructure, Hardening, IT Security Architecture, Virtual Private Networks (VPN), Network Infrastructure, TCP/IP, Cloud Computing, Information Technology Operations
★ 4.9 (13) · Advanced · Course · 1 - 3 Months