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.

Emory University
Skills you'll gain: Rmarkdown, Collaborative Software, Technical Documentation, Document Management, Technical Writing, Data Sharing, R (Software), Technical Communication
Beginner · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Distributed Computing, Data Store, NoSQL, Apache Cassandra, Cloud Computing, Systems Design, Cloud Computing Architecture, Database Theory, Algorithms, Scalability, C++ (Programming Language)
Beginner · Course · 1 - 3 Months

Edureka
Skills you'll gain: JUnit, Apache Maven, Restful API, Java Programming, Java, Application Deployment, Microservices, Docker (Software), Object Oriented Programming (OOP), Spring Boot, Spring Framework, Containerization, CI/CD, Unit Testing, API Design, Application Programming Interface (API), Hibernate (Java), Computer Programming, Object Oriented Design, Programming Principles
Intermediate · Specialization · 1 - 3 Months

Corporate Finance Institute
Skills you'll gain: Business Valuation, Financial Modeling, Revenue Forecasting, Microsoft PowerPoint, Financial Statements, Financial Analysis, Oral Expression, Auditing, Sales Presentations, Verbal Communication Skills, Financial Auditing, Financial Forecasting, Presentations, Productivity Software, Investment Banking, Equities, Forecasting, Corporate Finance, Microsoft Excel, Data Analysis
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Automation, No-Code Development, IT Automation, Business Process Automation, Workflow Management, Productivity Software, Digital Transformation, Process Optimization, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Virtual Private Networks (VPN), Authentications, Firewall, Authorization (Computing), Computer Security, Remote Access Systems, Cybersecurity, General Networking, Network Monitoring, Security Controls, IT Automation, Software-Defined Networking, Wireless Networks, Dynamic Host Configuration Protocol (DHCP), Virtual Local Area Network (VLAN), Automation, Network Routing, Encryption, Application Programming Interface (API)
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Bayesian Network, Bayesian Statistics, Reinforcement Learning, Probability, Probability & Statistics, Decision Intelligence, Probability Distribution, Markov Model, Agentic systems, Artificial Intelligence, Machine Learning Methods, Statistical Inference, Applied Machine Learning, Statistical Machine Learning, Time Series Analysis and Forecasting, Algorithms
Intermediate · Course · 1 - 3 Months

Real Madrid Graduate School Universidad Europea
Skills you'll gain: Sustainable Architecture, Facility Management, Sustainable Design, Data Infrastructure, Digital Transformation, Sustainable Technologies, Owned Media, Brand Management, Stakeholder Analysis, Intellectual Property, Stakeholder Management, Architectural Design, Media Strategy, Revenue Management, Internet Of Things, Network Infrastructure, Governance, AI Integrations, Data-Driven Decision-Making, Cybersecurity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Electronic Components, Swift Programming, Basic Electrical Systems, Internet Of Things, Electronics, Electronic Systems, PIC Microcontrollers, Embedded Software, Electronic Hardware, Test Equipment, Hardware Troubleshooting, Programming Principles, Electrical Engineering, Electrical Equipment, Embedded Systems, Wireless Networks, Semiconductors, Application Development, Display Devices, Debugging
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Django (Web Framework), Restful API, Content Management Systems, API Design, Application Deployment, Content Management, Learning Management Systems, Docker (Software), Web Servers, Nginx, Data Modeling, Web Development, PostgreSQL, Authentications, Containerization, Ajax, Python Programming, Performance Tuning, Real Time Data
Intermediate · Course · 1 - 3 Months

Skills you'll gain: NoSQL, MongoDB, Database Development, Database Systems, Databases, Database Management Systems, Database Management, Database Software, Database Administration, Information Management, Apache Cassandra, Database Theory, Database Architecture and Administration, Distributed Computing, Query Languages, Data Modeling, IBM Cloud, Cloud Applications, Data Manipulation, JSON
Beginner · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Relational Databases, Database Application, Database Management, Database Development, SQL, Databases, Database Systems, MySQL, Database Management Systems, Database Software, Database Design, Transaction Processing, Stored Procedure, Data Access, Application Development, Java, Data Integrity, Performance Tuning
Build toward a degree
Intermediate · Course · 1 - 3 Months