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.

Siemens
Skills you'll gain: Computer-Aided Design, Drafting and Engineering Design, Design Software, Data Import/Export, Engineering Drawings, Assembly Drawing, Mechanical Drawings, Technical Drawing, 3D Modeling, 3D Assets
★ 4.7 (79) · Beginner · Course · 1 - 3 Months

Logical Operations
Skills you'll gain: Microsoft Excel, Data Import/Export, Spreadsheet Software, Business Reporting, Microsoft Access, Report Writing, Data Presentation, Data Analysis Software, Data Manipulation, Business Intelligence Software, Data Visualization, Data Analysis, Business Intelligence, SAP Applications, Data Integration, Microsoft Office, Data Access
Beginner · Specialization · 1 - 3 Months
Skills you'll gain: Computer Security Incident Management, Endpoint Security, Incident Management, Incident Response, ISO/IEC 27001, Security Management, Vulnerability Scanning, Digital Forensics, Risk Management, Risk Management Framework, Personally Identifiable Information, Vulnerability Assessments, Linux, Linux Administration, Infrastructure Security, Authorization (Computing), Network Security, Threat Management, Event Monitoring, Security Strategy
★ 4.7 (68) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Key Performance Indicators (KPIs), Performance Measurement, Business Metrics, Process Improvement, Continuous Improvement Process, Performance Analysis, Business Process Improvement, Performance Metric, Performance Improvement, Performance Reporting, Operational Performance Management, Business Analysis, Data-Driven Decision-Making, Operational Efficiency
★ 4.6 (85) · Beginner · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Data Security, Security Testing, Threat Detection, Cyber Threat Intelligence, Cyber Attacks, Cyber Risk, Cyber Security Strategy, AI Integrations, Intrusion Detection and Prevention, Cyber Threat Hunting, Data Management, Cybersecurity, Cyber Governance, Artificial Intelligence and Machine Learning (AI/ML), Security Management, Security Awareness, Security Strategy, AI Product Strategy, Security Software, Generative AI
★ 4.6 (40) · Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Fine-tuning, Natural Language Processing, Model Training, Data Wrangling, Data Pipelines
Intermediate · Course · 1 - 4 Weeks

Indian Institute for Human Settlements
Skills you'll gain: Innovation, Sustainable Development, Community Development, Spatial Analysis, Environmental Issue, Social Sciences, Policy Analysis, Demography, Climate Change Adaptation, Environmental Policy, Socioeconomics, Systems Thinking, Economic Development, Sociology, Emerging Technologies, Cultural Diversity, Big Data, Data Literacy, Research Methodologies
★ 4.6 (57) · Intermediate · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Persona Development, Marketing Strategies, Digital Brand Strategy, Digital Media Strategy, Target Audience, Social Media Strategy, Social Media Marketing, Customer Analysis, Digital Marketing, Marketing Planning, Customer Acquisition Management, Customer experience improvement, Customer Engagement, Customer Retention, Social Media, Marketing, Target Market, Brand Management, E-Commerce, Experience Design
★ 4.7 (303) · Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Microsoft Copilot, ASP.NET, .NET Framework, C# (Programming Language), Application Programming Interface (API), API Design, Middleware, Software Documentation, Software Architecture, Secure Coding, Performance Tuning
★ 4.6 (76) · Beginner · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Animations, Software Design, Data Structures, Visualization (Computer Graphics), Interactive Design, Programming Principles, Computer Graphic Techniques, Python Programming, Graphic and Visual Design, Event-Driven Programming, Digital Design, Simulations, Computer Graphics, Design, Graphical Tools, Game Design, Computational Logic, Computational Thinking
★ 5 (8) · Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Spring Framework, Java Programming, Java, File I/O, Java Platform Enterprise Edition (J2EE), Object Oriented Programming (OOP), Application Frameworks, Code Reusability, Data Structures, File Management
★ 4.7 (222) · Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Climate Change Mitigation, Climate Change Programs, Risk Management, Climate Change Adaptation, Mitigation, Risk Mitigation, Environmental Policy, Environmental Issue, Corporate Sustainability, Pollution Prevention, Environmental Resource Management, Persuasive Communication, Interpersonal Communications, Media and Communications, Social Sciences, Social Impact, Sustainable Systems, Scientific Methods, Energy and Utilities, Vulnerability
★ 4.8 (305) · Beginner · Specialization · 1 - 3 Months