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: Cyber Attacks, Endpoint Security, Infrastructure Security, Cloud Infrastructure
★ 5 (10) · Beginner · Course · 1 - 3 Months
University of Glasgow
Skills you'll gain: Software Development Life Cycle, Program Development, Plot (Graphics), Data Presentation, Event-Driven Programming, Web Design and Development, Web Development Tools, Data Literacy, Animation and Game Design, Software Development, Hypertext Markup Language (HTML), Applied Machine Learning, Javascript, Interactive Design, Software Design, Application Design, Computer Graphics, Code Reusability, JavaScript Frameworks, Animations
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: ASP.NET, Model View Controller, .NET Framework, Object-Relational Mapping, Database Management, Data Access, Full-Stack Web Development, Web Development, Web Applications, Database Development, Software Architecture, Software Design Patterns, Maintainability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Structures, Scripting, Python Programming, Programming Principles, Development Environment, Software Installation
★ 4.8 (18) · Mixed · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Spatial Data Analysis, Spatial Analysis, Scripting, Geospatial Mapping, Scripting Languages, Dashboard, Dashboard Creation, Data Visualization Software, Interactive Data Visualization, Data Manipulation, Data Import/Export, Cascading Style Sheets (CSS), Advanced Analytics
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Angular, Data Store, JavaScript Frameworks, Frontend Performance, Development Environment, Data Management, TypeScript, Application Development, Performance Tuning, Data Access, Debugging
★ 3.2 (10) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, Mindfulness, AI literacy, AI Personalization, Smart Goals, Positivity, Self-Awareness, Meditation & Breathwork, Anthropic Claude, Emotional Intelligence, Decision Making, Consumer Behaviour, Stress Management, Personal Development, Decisiveness, Empathy, Goal Setting, Health And Wellness Coaching, Data Ethics, Behavioral Management
Beginner · Specialization · 3 - 6 Months

Splunk Inc.
Skills you'll gain: Data Modeling, Splunk, Pivot Tables And Charts, Data Management, Query Languages, Performance Tuning, Data Science, Data Analysis, Big Data, Business Intelligence, Data Import/Export, Business Analytics, Geospatial Information and Technology
★ 4.8 (20) · Beginner · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Probability & Statistics, Statistical Methods, Classification Algorithms, Calculus
Intermediate · Course · 1 - 3 Months

Skills you'll gain: IT Security Architecture, Security Controls, Cryptography, Security Engineering, Application Security, Vulnerability Assessments, Information Systems Security, Cryptographic Protocols, Vulnerability Management, Encryption, Cybersecurity, Infrastructure Security, Computer Security, Public Key Infrastructure, Cyber Security Assessment, Data Integrity
★ 4.8 (8) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Content Performance Analysis, Dashboard, Conversion Funnel Analysis, Surveys, Content Scheduling, Newsletters, Search Engine Optimization, Marketing Budgets, Email Automation, Data-Driven Marketing, Marketing Analytics, Marketing Automation, Web Analytics, Email Marketing, Content Marketing, Performance Reporting, Google Analytics, Collaborative Software, Social Media Management, Lead Generation
Beginner · Specialization · 3 - 6 Months

The State University of New York
Skills you'll gain: Performance Analysis, Law, Regulation, and Compliance, Data-Driven Decision-Making, Data Analysis, Regulation and Legal Compliance, Analytics, Data Management, Contract Management, Decision Making, Contract Negotiation, Negotiation, Relationship Building, Ethical Standards And Conduct, Operations Management
★ 5 (7) · Beginner · Course · 1 - 3 Months