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.

The Hong Kong University of Science and Technology
Skills you'll gain: Research Design, Research Methodologies, Science and Research, Social Sciences, Surveys, Qualitative Research, Institutional Review Board (IRB), Survey Creation, Statistical Analysis, Data Collection, Higher Education, Correlation Analysis, Sample Size Determination, Ethical Standards And Conduct, Academic Advising, Probability & Statistics, Regression Analysis, Informed Consent
Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Web Applications, Full-Stack Web Development, Database Application, Data Store, Database Development, Database Management, SQL, Query Languages, Data Access, Real Time Data, Javascript, Data Entry, Software Engineering, Authentications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Loss Prevention, Security Testing, Network Security, Cryptography, Cyber Security Assessment, Cryptographic Protocols, Security Controls, Cloud Security, Encryption, Data Security, Network Administration, Information Assurance, Identity and Access Management, Penetration Testing, Cloud Computing, Cyber Risk, Authorization (Computing), Information Privacy
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Model Evaluation, Model Training, AI Personalization, Data Science, Machine Learning Software, Predictive Analytics, Data Preprocessing, Python Programming, Machine Learning Methods, Development Environment, Package and Software Management
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Object Oriented Programming (OOP), File I/O, Python Programming, Data Structures, Computer Programming, Software Engineering, Performance Tuning, Web Development, Performance Testing, Debugging, Web Development Tools
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Dashboard, Digital Marketing Tools, Data Visualization, Data Entry, Google Sheets, Spreadsheet Software, Management Reporting, Business Reporting, Marketing Analytics, Market Analysis, Query Languages, Digital Marketing, Data Management, Data Validation
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Computer Hardware, SQL, Hardware Architecture, General Networking, Database Design, Database Software, Hardware Troubleshooting, Networking Hardware, Database Theory, Databases, Database Management Systems, Computer Networking, Relational Databases, Network Support, Database Management, Network Protocols, Query Languages, Information Technology, Network Routers, Wireless Networks
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Model Deployment, MLOps (Machine Learning Operations), Model Optimization, Automation, Artificial Intelligence and Machine Learning (AI/ML), Model Training, Machine Learning Methods, No-Code Development, Data Preprocessing, Scikit Learn (Machine Learning Library), Machine Learning, Model Evaluation, Applied Machine Learning, Predictive Modeling, Feature Engineering, Data-Driven Decision-Making, Machine Learning Algorithms, Artificial Intelligence, Data Validation, Data Quality
Beginner · Course · 1 - 4 Weeks

University of California, Santa Cruz
Skills you'll gain: Go (Programming Language), Data Structures, Object Oriented Design, Object Oriented Programming (OOP), Computer Programming, Unit Testing, Algorithms, C (Programming Language), Software Testing, Computer Science, Code Reusability, Graph Theory, Software Design
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Docker (Software), Containerization, Application Deployment, Data Persistence, Software Development, Virtualization, Application Security, Virtual Networking, Virtualization and Virtual Machines, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Consultative Approaches, Sales Training, Inside Sales, Market Opportunities, Selling Techniques, Closing (Sales), Regional Sales, General Sales Practices, Sales Enablement, Sales Management, Sales Operations, Business Development, Sales Prospecting, Personalized Campaigns, Active Listening, Drive Engagement, Negotiation, Proposal Development, Data Storytelling, Emotional Intelligence
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Debugging, Integrated Development Environments, Data Validation, Web Applications, Scripting, Object Oriented Design, Development Environment, Object Oriented Programming (OOP), Code Reusability, Django (Web Framework), Web Development Tools, Software Testing, Web Development, Customer Data Management, Data Structures, Program Development, Scripting Languages, Python Programming, Record Keeping, Programming Principles
Intermediate · Specialization · 1 - 3 Months