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.

LearnQuest
Skills you'll gain: Spring Framework, JUnit, Application Frameworks, Unit Testing, Java Programming, Enterprise Application Management, Integration Testing, Configuration Management, Development Environment, Extensible Markup Language (XML), Context Management
★ 3.8 (455) · Intermediate · Course · 1 - 4 Weeks

ConsenSys Academy
Skills you'll gain: Blockchain, Cryptography, Interoperability, Cryptographic Protocols, Encryption, Public Key Cryptography Standards (PKCS), FinTech, Emerging Technologies, Ledgers (Accounting), Distributed Computing, Case Studies, Digital Assets, Data Integrity, Transaction Processing
★ 4.7 (846) · Beginner · Course · 1 - 3 Months
Imperial College London
Skills you'll gain: Virtual Reality, Augmented and Virtual Reality (AR/VR), Computer Graphics, Android (Operating System), Visualization (Computer Graphics), Virtual Environment, Logo Design, 3D Assets, Android Studio, Android Development, Computer Graphic Techniques, Application Development, Animation and Game Design, Animations, Mobile Development, Color Theory, Creative Design, Linear Algebra
★ 4.3 (131) · Intermediate · Specialization · 3 - 6 Months

Google Cloud
Skills you'll gain: Identity and Access Management, Prompt Engineering, Cloud Infrastructure, Google App Engine, Google Cloud Platform, Prompt Engineering Tools, Containerization, CI/CD, Kubernetes, Microservices, Generative AI, Application Deployment, Cloud Computing, Cloud Deployment, Site Reliability Engineering, Cloud-Native Computing, Terraform, Infrastructure As A Service (IaaS), Data Storage Technologies, Cloud Security
★ 4.5 (888) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Swift Programming, Apple Xcode, iOS Development, Apple iOS, Data Structures, Programming Principles, Code Reusability, Application Development, Object Oriented Programming (OOP), Development Environment, Computer Programming, Web Development
★ 4.7 (275) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: ChatGPT, Responsible AI, Technical Consulting, Data Ethics, Consulting, Business Consulting, Generative AI, Business Reporting, Client Services, Business Process Automation, Ethical Standards And Conduct, Data Analysis Software, Data Analysis, Report Writing, Innovation
★ 3.7 (7) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Code Reusability, Kotlin, Object Oriented Programming (OOP), Programming Principles, Object Oriented Design, Android Development, Data Structures, Computer Programming, Mobile Development
★ 4.7 (346) · Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Spatial Data Analysis, Environmental Issue, Geospatial Information and Technology, Environment and Resource Management, Environmental Science, Geographic Information Systems, Oil and Gas, Environmental Resource Management, Natural Resource Management, Sustainable Systems, Petroleum Industry, Physical Science, Environment, Vibrations, Laboratory Experience, Materials science, Hazard Analysis
★ 4.9 (539) · Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Adobe Premiere, Video Production, Videography, Post-Production, Photo/Video Production and Technology, Video Editing, Storyboarding, Storytelling, Cinematography, Media Production, Visual Storytelling, Oral Expression, Editing, Data Import/Export, Writing, Graphic and Visual Design, Graphic and Visual Design Software, Scripting, Design Elements And Principles, Timelines
★ 4.6 (143) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Supervised Learning, Data Modeling, Unsupervised Learning, Applied Machine Learning, Data Analysis, Regression Analysis, Machine Learning Methods, Classification Algorithms, Machine Learning Algorithms, Machine Learning, Predictive Modeling, Decision Tree Learning, Predictive Analytics, Logistic Regression, Random Forest Algorithm
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Dashboard Creation, Google Sheets, Spreadsheet Software, Pivot Tables And Charts, Data Visualization, Data Analysis, Data Cleansing
★ 4.6 (649) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: AI Enablement, No-Code Development, Business Transformation, Digital Transformation, Business Leadership, Solution Design, Organizational Change, Change Management, Data Storytelling, Business Priorities, Business Analysis, Business Communication, Influencing, Technical Communication, Automation, Communication, Stakeholder Engagement
Beginner · Course · 1 - 4 Weeks