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.

Johns Hopkins University
Skills you'll gain: Linear Algebra, Applied Mathematics, Algebra, Advanced Mathematics, Geometry, Applied Machine Learning, Markov Model
★ 4.8 (78) · Mixed · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Email Automation, Workflow Management, Agentic Workflows, AI Workflows, No-Code Development, Deepseek, LLM Application, Generative AI Agents, Large Language Modeling, Generative AI, Automation, Application Deployment, AI Integrations, Google Sheets, Context Management, Gmail, Software Installation
★ 4.1 (46) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, C# (Programming Language), Development Environment, .NET Framework, Computer Programming, Programming Principles, Microsoft Development Tools, Microsoft Visual Studio, Data Structures, Computer Science, Algorithms, Software Development Tools, Computer Programming Tools, Memory Management, Debugging, Software Installation, Data Storage
Intermediate · Course · 1 - 3 Months
University of Michigan
Skills you'll gain: Mathematical Modeling, Systems Thinking, Strategic Decision-Making, Innovation, Diversity Awareness, Social Sciences, Predictive Modeling, Strategic Thinking, Decision Making, Complex Problem Solving, Critical Thinking, Network Analysis, Economics, Economic Development, Probability, Market Dynamics, Coordination
★ 4.8 (2.3K) · Intermediate · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: File I/O, Data Structures, Programming Principles, Computer Programming Tools, Python Programming, Computer Programming, Computational Thinking, Software Development Tools, Development Environment, Data Storage, Functional Design, Integrated Development Environments, Software Documentation, Code Reusability, Data Import/Export, Jupyter
★ 4.6 (1.3K) · Beginner · Course · 1 - 4 Weeks

O.P. Jindal Global University
Skills you'll gain: Computational Logic, Machine Learning Algorithms, Classification Algorithms, Natural Language Processing, Artificial Intelligence, Agentic systems, AI literacy, Machine Learning Methods, Machine Learning, Artificial Intelligence and Machine Learning (AI/ML), Decision Support Systems, Bayesian Network, Complex Problem Solving, Probability & Statistics, Algorithms
★ 4.6 (9) · Mixed · Course · 3 - 6 Months

Coursera
Skills you'll gain: Target Audience, Email Marketing, Personalized Campaigns, Campaign Management, Marketing Effectiveness, Strategic Communication, Digital Marketing Tools, Data-Driven Marketing, Customer Data Management, Customer Engagement, Data Quality
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, Lean Six Sigma, Pareto Chart, Six Sigma Methodology, Statistical Process Controls, Regression Analysis, Quality Improvement, Generative AI, Quality Monitoring, Quality Management, Process Improvement, ChatGPT, Data Analysis, Lean Methodologies, Customer Insights, Analysis, Statistical Analysis, Data-Driven Decision-Making, Statistical Methods
Intermediate · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Distributed Computing, Cloud Infrastructure, Cloud Services, Big Data, Cloud Technologies, Apache Spark, Cloud Computing, Cloud Storage, Virtual Networking, Cloud Platforms, Cloud Solutions, Data Store, Network Architecture, Cloud Computing Architecture, Computer Networking, File Systems, Cloud Applications, Cloud Development, Software-Defined Networking, NoSQL
★ 4.3 (2.1K) · Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Data Presentation, Report Writing, Data Storytelling, Presentations, Research Reports, Data Visualization, Business Reporting, Microsoft PowerPoint, Business Communication, Branding, Business Metrics
Beginner · Course · 1 - 4 Weeks

Total Seminars
Skills you'll gain: Penetration Testing, Metasploit, Exploitation techniques, Exploit development, Vulnerability Scanning, Security Testing, Technical Communication, Scripting, Technical Writing, Security Engineering, Technical Documentation, Bash (Scripting Language), Code Review, Security Requirements Analysis, Windows PowerShell, Security Awareness, Python Programming, Linux, Persistence, Applicant Tracking Systems
Advanced · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Google Analytics, Data Storytelling, Data Presentation, Financial Forecasting, Looker (Software), Data-Driven Marketing, Marketing Analytics, Data Literacy, Cross-Channel Marketing, Marketing Budgets, Web Analytics, Data Validation, Stakeholder Engagement, Data-Driven Decision-Making, Google Ads, Dashboard Creation, Revenue Forecasting, Marketing Automation, Predictive Analytics, Digital Marketing
Beginner · Specialization · 1 - 3 Months