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.

Universitat Politècnica de València
Skills you'll gain: Microsoft Excel, Pivot Tables And Charts, Spreadsheet Software, Excel Formulas, Data Import/Export, Business Intelligence, Data Analysis, Data Validation, Data Presentation, Consolidation, Data Management, Strategic Planning, Data Transformation, Data Manipulation, Statistical Analysis
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Planning And Design, Microsoft Azure, Network Security, Network Troubleshooting, Network Architecture, Network Support, Network Administration, IT Security Architecture, Security Engineering, Firewall, Network Monitoring, Virtual Private Networks (VPN), Virtual Networking, Network Routing, Role-Based Access Control (RBAC), General Networking, Network Performance Management, Hybrid Cloud Computing, Data Migration
Intermediate · Course · 1 - 4 Weeks

University of Lausanne
Skills you'll gain: Health Policy, Public Health, Health Systems, Geographic Information Systems, Systems Thinking, Health Assessment, Sustainable Development, Policy Development, Environmental Issue, Data Collection
Beginner · Course · 1 - 3 Months

Skills you'll gain: Kubernetes, Data Storage, Cloud-Native Computing, YAML, Data Storage Technologies, Data Persistence, Data Management, Configuration Management, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Robotic Process Automation, Development Testing, HR Tech, Business Logic, IT Automation, Document Management, Application Frameworks, Computer Programming, File I/O
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Usability Testing, Usability, User Centered Design, User Experience Design, Responsive Web Design, Software Design Documents, Prototyping, Interaction Design, Software Documentation, Mockups, Systems Design, UI/UX Research, Design, Wireframing, User Interface (UI) Design, Design Elements And Principles
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Active Directory, Network Administration, Dynamic Host Configuration Protocol (DHCP), Technical Support and Services, General Networking, Firewall, Microsoft Windows, Local Area Networks, Lightweight Directory Access Protocols, Network Security, Network Troubleshooting, Computer Networking, Mac OS, Group Policy, Network Infrastructure, TCP/IP, User Accounts, Authorization (Computing), Network Protocols, Multi-Factor Authentication
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Project Management Life Cycle, Backlogs, Stakeholder Communications, Timelines, Project Management, Workflow Management, Stakeholder Management, Waterfall Methodology, Agile Methodology, Agile Project Management, Project Management Software, Project Schedules, Project Planning, Scheduling, Risk Mitigation, Data-Driven Decision-Making, Dependency Analysis, Decision Making, Risk Analysis
Beginner · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Software Development
Beginner · Course · 1 - 3 Months

Skills you'll gain: Facebook, Social Media, Social Media Management, Social Media Marketing, Personalized Service, Customer Communications Management, Web Presence, Drive Engagement, Branding, Digital Marketing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Bash (Scripting Language), Shell Script, Unix Shell, Scripting, Linux Commands, Scripting Languages, grep, Linux, IT Automation, Unix Commands, Unix, Debugging, Automation, Remote Access Systems, Command-Line Interface, Linux Servers, Development Environment, System Monitoring, Data Structures, Software Installation
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Object-Relational Mapping, Spring Framework, Hibernate (Java), Apache Maven, Model View Controller, Relational Databases, Database Design, MySQL, Java Programming, Databases, Web Applications, Java Platform Enterprise Edition (J2EE), Application Frameworks, Java, Full-Stack Web Development, Database Application, Authentications, Object Oriented Design, Back-End Web Development, Object Oriented Programming (OOP)
Beginner · Specialization · 1 - 3 Months