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: Generative Engine Optimization (GEO), Search Engine Optimization, Content Optimization, Generative AI, Content Strategy, AI powered creativity, Semantic Web, Workforce Development, Digital Marketing, Content Creation, Vocabulary, Digital Content, Social Media
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Model View Controller, ASP.NET, OAuth, API Design, Web Development, Application Programming Interface (API), .NET Framework, Web Services, Authentications, Unit Testing, Back-End Web Development, C# (Programming Language), Web Applications, Object-Relational Mapping, API Testing, Authorization (Computing), Operational Databases, Cloud Computing, Computer Programming
★ 4.7 (38) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Penetration Testing, Network Security, Cyber Operations, Network Monitoring, Exploitation techniques, Vulnerability Scanning, Cryptographic Protocols, Remote Access Systems, Network Protocols, Encryption, General Networking, Command-Line Interface, Network Analysis, Proxy Servers
★ 4.7 (14) · Intermediate · Course · 1 - 3 Months

University of Glasgow
Skills you'll gain: Wireless Networks, Emerging Technologies, Digital Communications, Communication Systems, Internet Of Things, Software-Defined Networking, Network Planning And Design, Distributed Computing, Artificial Intelligence and Machine Learning (AI/ML), Electrical Engineering, Electronics Engineering, Zero Trust Network Access, AI Integrations, Information Technology, Machine Learning, Trustworthiness
★ 4.8 (8) · Intermediate · Course · 1 - 4 Weeks

Emory University
Skills you'll gain: Generative AI, Customer experience improvement, AI Personalization, Marketing Effectiveness, Content Marketing, Data-Driven Marketing, Marketing Strategies, AI Enablement, Marketing Analytics, Customer Insights, Customer Analysis, Artificial Intelligence
★ 4.2 (9) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Networking Hardware, Health Technology, Computer Hardware, Hardware Architecture, Data Security, Automation, Cloud Applications, Continuous Monitoring, AI Integrations, Open Source Technology, Scalability, Predictive Modeling
★ 4.1 (8) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Attacks, Endpoint Security, Infrastructure Security, Cloud Infrastructure
★ 5 (10) · Beginner · Course · 1 - 3 Months

Pontificia Universidad Católica del Perú
Skills you'll gain: Data Ethics, Consumer Behaviour, Digital Analysis, Data Collection, Marketing, Target Market, digital literacy, Market Research, User Research, Customer Insights, Customer Analysis, Ethical Standards And Conduct, Business Ethics, Research, Analytics, Personalized Service, Qualitative Research, Technical Communication, Research Reports, Data Analysis
★ 4.8 (37) · Beginner · Course · 1 - 4 Weeks
Google Cloud
Skills you'll gain: Google Sheets, Spreadsheet Software, Data Visualization, Google Workspace, Data Validation, Business Solutions, Automation, Data Analysis Software, Data Integration, Business Analysis
★ 4.7 (65) · Intermediate · Course · 1 - 3 Months

University at Buffalo
Skills you'll gain: Peer Review, Governance, Consulting, Leadership and Management, Leadership Studies, Philanthropy, Report Writing, Organizational Leadership, Leadership, Performance Analysis, Management Consulting, Organizational Change, Change Management, Organizational Effectiveness, Management Reporting, Analysis, Performance Measurement, Performance Review, Data Collection, Surveys
★ 4.4 (14) · Mixed · Course · 1 - 3 Months

Skills you'll gain: JUnit, Apache Maven, Model View Controller, Unit Testing, Frontend Integration, Spring Boot, Restful API, Data Persistence, Web Services, Software Testing, Java Programming, Object-Relational Mapping, Java, Back-End Web Development, Secure Coding, Authentications, Data Modeling, Business Logic
★ 4.6 (28) · Mixed · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), Data Persistence, Event-Driven Programming, HTML and CSS, Web Applications, Front-End Web Development, Semantic Web, Javascript, Browser Compatibility, Secure Coding, Web Content Accessibility Guidelines, Data Storage Technologies, Application Security, Data Validation, Data Management
★ 3.8 (8) · Beginner · Course · 1 - 3 Months