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: Risk Analysis, Trend Analysis, Project Risk Management, Project Performance, Risk Management, Dashboard, Key Performance Indicators (KPIs), Performance Metric, Project Management, Continuous Monitoring, Scope Management, Performance Measurement, Real Time Data, Budget Management, Stakeholder Communications
Beginner · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Search Engine Marketing, Google Ads, Search Engine Optimization, Marketing Strategies, Pay Per Click Advertising, Data-Driven Marketing, Web Analytics and SEO, Online Advertising, Digital Marketing Tools, Marketing Effectiveness, Email Marketing, Marketing Analytics, Digital Marketing Campaigns, Digital Marketing, Marketing Planning, Marketing, Digital Advertising, Driving engagement, Strategic Marketing, Social Media Marketing
★ 4.5 (38) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Incident Response, Network Security, Intrusion Detection and Prevention, Command-Line Interface, Cryptography, Cyber Security Strategy, Open Web Application Security Project (OWASP), Application Security, Secure Coding, Cybersecurity, IT Security Architecture, Encryption, Information Systems Security, Vulnerability Assessments, Cyber Attacks, Risk Management Framework, Multi-Factor Authentication, Cloud Security, Penetration Testing, Risk Management
★ 4.7 (60) · Intermediate · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Java Platform Enterprise Edition (J2EE), Application Deployment, Web Applications, Application Servers, Java, Web Servers, Java Programming, Object-Relational Mapping, Web Development, Context Management, Application Frameworks, Scripting Languages, Scripting, Middleware, Server Side, Data Storage, Data Sharing, Data Persistence, Event-Driven Programming, Enterprise Application Management
★ 4.6 (222) · Intermediate · Specialization · 1 - 3 Months

Arizona State University
Skills you'll gain: Bayesian Statistics, Statistical Modeling, Bayesian Network, Statistical Methods, Statistical Analysis, Data Analysis, R (Software), Statistical Programming, R Programming, Data-Driven Decision-Making, Statistical Inference, Markov Model, Network Model, Simulations, Sampling (Statistics), Probability Distribution, Dependency Analysis
Intermediate · Course · 1 - 4 Weeks

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 (307) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Marketing Automation, Digital Marketing Tools, Marketing Analytics, Data-Driven Marketing, Digital Marketing, Predictive Analytics, MarTech, Digital Marketing Campaigns, Advanced Analytics, Predictive Modeling, AI Personalization, Marketing Channel, Data Analysis, Natural Language Processing, Data Ethics, Artificial Intelligence, Ethical Standards And Conduct, Machine Learning
★ 4.8 (67) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, Restful API, Database Design, Database Development, Database Application, NoSQL, MongoDB, Back-End Web Development, Performance Tuning, API Design, Cloud Applications, Relational Databases, Authentications, Server Side, Application Programming Interface (API), Cloud Development, Cloud Deployment, Middleware, Scalability, Javascript
★ 4.5 (52) · Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Open Web Application Security Project (OWASP), Penetration Testing, Metasploit, Security Testing, Security Strategy, Vulnerability Assessments, Cyber Security Assessment, Security Management, Vulnerability Scanning, Cyber Threat Intelligence, Information Systems Security, Exploitation techniques, Security Controls, Data Sharing
★ 4.7 (267) · Beginner · Course · 1 - 3 Months

28DIGITAL
Skills you'll gain: File I/O, Data Structures, Theoretical Computer Science, Algorithms, Memory Management, Graph Theory, Data Access, Performance Tuning
★ 4.6 (60) · Advanced · Course · 1 - 3 Months

Anthropic
Skills you'll gain: Model Context Protocol, AI Integrations, Anthropic Claude, AI Workflows, Tool Calling, Prompt Engineering, Program Development, Test Tools, Servers, Debugging, Document Management
★ 4.8 (26) · Beginner · Course · 1 - 4 Weeks

Corporate Finance Institute
Skills you'll gain: Financial Statement Analysis, Annual Reports, Financial Statements, Financial Analysis, Financial Reporting, Financial Acumen, Accounting, Management Reporting, General Accounting, Financial Accounting, Business Reporting, Income Statement, Financial Data, Balance Sheet, Auditors Report, Risk Analysis, Business Acumen, Risk Management, Cash Flows
★ 4.8 (48) · Beginner · Course · 1 - 3 Months