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.

Imperial College London
Skills you'll gain: Programming Principles, Program Development, Microsoft Visual Studio, Computer Programming, Integrated Development Environments, Computer Programming Tools, Python Programming, Development Environment
★ 4.9 (22) · Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Dashboard, Salesforce, Data Visualization, Business Reporting, Report Writing, Data Import/Export
★ 4 (15) · Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Cryptography, Encryption, Application Development, Security Engineering, C and C++, C++ (Programming Language)
★ 4.2 (16) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: PL/SQL, Oracle Databases, Stored Procedure, SQL, Data Persistence, Database Development, Database Management Systems, Web Services, Data Storage Technologies, Authorization (Computing), File I/O, Debugging, File Management, Network Protocols
Mixed · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Visual Basic (Programming Language), Development Environment, Program Development, Microsoft Development Tools, Microsoft Visual Studio, Programming Principles, .NET Framework, Computer Programming, Integrated Development Environments, Software Development, Software Installation, Debugging
★ 4.7 (52) · Beginner · Course · 1 - 4 Weeks

IESE Business School
Skills you'll gain: Oral Expression, Media Relations, Public Speaking, Media and Communications, Communication Strategies, Strategic Communication, Media Strategy, Verbal Communication Skills, Public Relations, Digital Media Strategy, Digital Marketing, Communication, Marketing Communications, Marketing and Public Relations, Non-Verbal Communication, Journalism, Storytelling
★ 4.9 (34) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: C# (Programming Language), Software Architecture, .NET Framework, Object Oriented Design, Distributed Computing, Scalability, Object Oriented Programming (OOP), Software Design, Object-Relational Mapping, Microservices, MongoDB, Data Access, Model View Controller, Performance Tuning, Computer Programming, Maintainability, NoSQL, Event-Driven Programming
★ 4.5 (103) · Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Project Management, Team Performance Management, Leadership and Management, Project Management Institute (PMI) Methodology, Project Estimation, Management Training And Development, Team Management, Project Management Life Cycle, Project Implementation, Team Leadership, People Development, People Management, Project Performance, Leadership, Analysis, Document Management
★ 4.5 (59) · Advanced · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Cybersecurity, Cyber Security Strategy, Cyber Governance, Cyber Risk, Security Strategy, Cyber Security Policies, Computer Security Awareness Training, Security Management, Security Awareness, Information Privacy, Infrastructure Security, Risk Management, Risk Management Framework, Dependency Analysis
★ 4.8 (52) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Model Training, Model Optimization, Model Evaluation, Machine Learning Software, Applied Machine Learning, Predictive Modeling, Machine Learning Methods, Feature Engineering, Workflow Management, Verification And Validation, Machine Learning, Supervised Learning, Statistical Machine Learning, Statistical Modeling, Scikit Learn (Machine Learning Library), Benchmarking, Random Forest Algorithm, Performance Analysis, Cost Management, Resource Utilization
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Kubernetes, Cloud-Native Computing, YAML, Containerization, Application Deployment, Development Environment, Virtual Machines, Data Persistence, Virtualization, Virtual Environment, Dashboard Creation, Network Routing, Network Architecture, Command-Line Interface, Software Installation, Configuration Management, Scalability
★ 4.1 (27) · Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: JUnit, File I/O, Object Oriented Design, Java Programming, Object Oriented Programming (OOP), Java, Unit Testing, Maintainability, Software Development, Secure Coding, Software Testing, Programming Principles, Computer Programming, Application Development, Authentications, Code Reusability, Android Development, Application Design, Debugging, Performance Tuning
★ 4.6 (84) · Beginner · Specialization · 1 - 3 Months