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 Alberta
Skills you'll gain: Scientific Methods, Science and Research, General Science and Research, Research Methodologies, Research, Research Design, Peer Review, Experimentation, Media and Communications, Correlation Analysis, Journalism, Statistical Analysis, Probability & Statistics, Descriptive Statistics, Communication
★ 4.4 (286) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Vibe coding, Performance Tuning, Software Development Tools, Code Review, AI Security, Collaborative Software, AI Workflows, Generative AI, Software Engineering, Software Technical Review, Application Security, Software Development, Prompt Engineering, AI Personalization, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Debugging, Software Development Life Cycle, Automation, Analysis
★ 5 (7) · Intermediate · Course · 1 - 4 Weeks

University of Toronto
Skills you'll gain: Data Ethics, Data Collection, Quantitative Research, Qualitative Research, Data Analysis, Statistical Analysis, Analytical Skills, Statistical Methods, Analytics, Regression Analysis, Research, Diversity Awareness, Focus Group, Correlation Analysis, Diversity and Inclusion, Research Methodologies, Business Analytics, Data Synthesis, Statistical Inference, Stakeholder Analysis
★ 4.8 (96) · Mixed · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Cloud Computing, Cloud Platforms, Cloud Computing Architecture, Process Optimization, Process Improvement and Optimization, Cloud Deployment, Cloud Services, Process Improvement, Manufacturing Operations, Manufacturing and Production, Internet Of Things, Innovation, Manufacturing Processes, Robotics, Cybersecurity, Automation, Augmented and Virtual Reality (AR/VR), Industrial Engineering, Workforce Development, Change Management
★ 4.5 (30) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Financial Statement Analysis, Financial Statements, Financial Analysis, Operational Analysis, Financial Modeling, Performance Metric, Accounting, Finance, Investments
★ 4.6 (216) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: SQL Server Reporting Services, Microsoft SQL Servers, Business Reporting, Business Intelligence, Report Writing, SQL, Interactive Data Visualization, Code Reusability, Data Visualization, Microsoft Development Tools
Mixed · Course · 1 - 3 Months

Northwestern University
Skills you'll gain: Machine Controls, Robotics, Control Systems, Process Control, Graph Theory, Algorithms, Virtual Environment, Simulation and Simulation Software, Mathematical Modeling, Data Structures, Torque (Physics)
★ 4.8 (140) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, Restful API, Database Design, Database Development, Database Application, NoSQL, MongoDB, Back-End Web Development, Performance Tuning, API Design, Cloud Applications, Relational Databases, Authentications, Server Side, Application Programming Interface (API), Cloud Development, Cloud Deployment, Middleware, Scalability, Javascript
★ 4.5 (52) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Email Marketing, Direct Marketing, Campaign Management, Personalized Campaigns, Campaign Planning, Digital Marketing Tools, Marketing, Digital Marketing, Target Audience, Registration, Design, Business
★ 4.5 (385) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: QuickBooks (Accounting Software), Vendor Management, Ledgers (Accounting), Accounting Software, Inventory and Warehousing, Inventory Management, Payroll Processing, Accounting Records, Financial Reporting, Payroll Administration, Business Reporting, Customer Data Management, Management Reporting, Payroll Systems, Financial Analysis, Billing & Invoicing, Accounting and Finance Software, Business Software, Business, Business Analysis
★ 4.4 (86) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Machine Learning Methods, Machine Learning Algorithms, AI Workflows, AI literacy, Responsible AI, Classification Algorithms
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: API Gateway, Cloud Applications, Google Cloud Platform, Cloud Development, Cloud Infrastructure, Cloud-Native Computing, Prompt Engineering, Kubernetes, Serverless Computing, Prompt Engineering Tools, Microservices, Containerization, Application Deployment, Application Development, Infrastructure As A Service (IaaS), Application Programming Interface (API), Prompt Patterns, Cloud Computing, Cloud Storage, Debugging
★ 4.7 (45) · Intermediate · Specialization · 3 - 6 Months