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.

University of Copenhagen
Skills you'll gain: Data Literacy, digital literacy, Data Ethics, Journalism, Artificial Intelligence, Data Sharing, AI literacy, Big Data, Law, Regulation, and Compliance, Data Processing, Data Collection, Social Impact, Machine Learning, Algorithms
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Maintainability, Computational Logic
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: MySQL, Google Cloud Platform, Data Mining, Microsoft SQL Servers, Cloud API, PostgreSQL, Metadata Management, Cloud Management
Beginner · Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Data Lakes, Data Processing, Google Cloud Platform, Data Warehousing, Data Integration, Data Management, Data Pipelines, Data Governance, Data Access, Analytics, Data Security, Identity and Access Management, Automation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Relational Databases, API Design, ASP.NET, Object-Relational Mapping, Databases, Query Languages, Back-End Web Development, Application Programming Interface (API), Restful API, Database Design, Data Access, Data Manipulation, C# (Programming Language)
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Object Oriented Programming (OOP), Statistical Machine Learning, Object Oriented Design, Machine Learning Methods, Plot (Graphics), Data Visualization, Seaborn, Flask (Web Framework), Web Development, Computer Programming, Artificial Intelligence and Machine Learning (AI/ML), Programming Principles, Web Applications, Statistical Methods, Data Analysis Software, Back-End Web Development, Pandas (Python Package), Probability & Statistics, Application Development, Data Manipulation
Intermediate · Course · 1 - 3 Months

Logical Operations
Skills you'll gain: Data Cleansing, Data Preprocessing, Unit Testing, Package and Software Management, Python Programming, Data Science, Computer Programming, Debugging, Scripting, Software Development, Machine Learning, Database Application, Object Oriented Programming (OOP), Regression Analysis, Programming Principles, Scripting Languages, Databases, Object Oriented Design, Relational Databases, User Interface (UI) Design
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Network Troubleshooting, Software-Defined Networking, Network Engineering, Network Monitoring, Virtual Networking, TCP/IP, Network Architecture, Computer Networking, Network Performance Management, Network Protocols, General Networking, Cybersecurity, Network Infrastructure, Network Administration, Local Area Networks, Network Analysis, OSI Models, Network Model, Network Routing
Build toward a degree
Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Data Ethics, Big Data, Cybersecurity, Data Security, Cryptography, Information Privacy, Encryption, Digital pedagogy, AI Personalization, Computer Science, Web Servers, Machine Learning, Machine Learning Methods, Supervised Learning, Artificial Neural Networks
Beginner · Course · 1 - 3 Months

Skills you'll gain: Application Lifecycle Management, Azure DevOps Pipelines, Azure DevOps, CI/CD, Continuous Delivery, Continuous Integration, DevOps, Data Validation, Data Governance, Data Quality, Test Automation, Apache Airflow, Extract, Transform, Load, Data Pipelines, SQL
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Analytical Skills, Analysis, Analytics, Data Maintenance, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Site Reliability Engineering, Google Cloud Platform, Dataflow, Kubernetes, Real Time Data, Database Management, Big Data, Database Management Systems, CI/CD, Performance Tuning, Continuous Deployment, Data Pipelines, Databases, Cloud Engineering, Relational Databases, Containerization, Application Deployment, Data Processing, DevOps, Software Architecture
Intermediate · Course · 1 - 4 Weeks