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.

Skills you'll gain: Key Performance Indicators (KPIs), Performance Measurement, Business Metrics, Process Improvement, Continuous Improvement Process, Performance Analysis, Business Process Improvement, Performance Metric, Performance Improvement, Performance Reporting, Operational Performance Management, Business Analysis, Data-Driven Decision-Making, Operational Efficiency
★ 4.6 (85) · Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Marketing Analytics, Marketing Effectiveness, Market Analysis, Competitive Analysis, Marketing, Key Performance Indicators (KPIs), Market Research, Target Audience, Target Market, Dashboard, Return On Investment, Value Propositions, Smart Goals, Business Strategy, Cross-Channel Marketing, Concision, Variance Analysis, Strategic Partnership, Data Collection, Strategic Decision-Making
★ 4.7 (83) · Intermediate · Specialization · 3 - 6 Months

Interactive Brokers
Skills you'll gain: Financial Statement Analysis, Financial Statements, Financial Analysis, Financial Acumen, Investments, Supply And Demand, Real Estate, Risk Management, Market Dynamics, Market Trend, Portfolio Risk, Growth Strategies, Market Data, Business Economics, Economics, Business Metrics, Business Valuation, Compensation Analysis, Technical Analysis, Research
★ 4.6 (55) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Google Analytics, Data-Driven Marketing, Marketing Analytics, Web Analytics, Web Analytics and SEO, Data-Driven Decision-Making, Data Literacy, Digital Analysis, Analytics, Analysis, Descriptive Analytics, Performance Analysis, Performance Metric, Performance Reporting
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Blockchain, Network Security, Distributed Denial-Of-Service (DDoS) Attacks, Cryptography, Cryptographic Protocols, Secure Coding, Encryption, Vulnerability Assessments, Scalability, Distributed Computing, Exploitation techniques, Transaction Processing, Algorithms
★ 4.6 (86) · Beginner · Course · 1 - 3 Months

Skills you'll gain: R Programming, Model Optimization, R (Software), Analysis, Mathematical Software, Data Analysis
Intermediate · Guided Project · Less Than 2 Hours

ISAE-SUPAERO
Skills you'll gain: Physical Science, Applied Mathematics, Systems Of Measurement, Engineering Calculations, Mathematical Modeling, Engineering, Scientific, and Technical Instruments, Mechanics, Physics, Scientific Visualization
★ 4.7 (71) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Postman API Platform, JUnit, Test Automation, API Testing, Software Quality Assurance, Test Tools, Test Script Development, Quality Assurance, Unit Testing, Software Testing, Continuous Integration, Automation, Data Validation, Performance Testing, Test Case, Agile Methodology, Integration Testing, Debugging, Javascript
★ 4.7 (68) · Intermediate · Specialization · 1 - 3 Months

Kennesaw State University
Skills you'll gain: Network Security, Network Administration, Security Management, Firewall, Cyber Attacks, Network Monitoring, Cybersecurity, General Networking, Cyber Security Assessment, Network Protocols, Virtual Private Networks (VPN), Wireless Networks, Vulnerability Assessments, Cloud Security, System Monitoring, Continuous Monitoring, TCP/IP, Intrusion Detection and Prevention, Cloud Computing, Threat Detection
★ 4.8 (238) · Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Angular, Node.JS, Full-Stack Web Development, HTML and CSS, JavaScript Frameworks, User Interface (UI), Application Deployment, Application Frameworks, Back-End Web Development, Frontend Integration, Front-End Web Development, Hypertext Markup Language (HTML), User Interface (UI) Design, MongoDB, Secure Coding, Middleware, Bootstrap (Front-End Framework), jQuery, Javascript, Cascading Style Sheets (CSS)
★ 4.2 (66) · Intermediate · Specialization · 1 - 3 Months

Università Bocconi
Skills you'll gain: Data Analysis, Innovation, Strategic Decision-Making, Analysis, Statistical Analysis, General Science and Research, Data-Driven Decision-Making, Complex Problem Solving, Regression Analysis, Correlation Analysis, Decision Making, Big Data, Strategic Thinking, Statistical Hypothesis Testing, Performance Metric, Entrepreneurship, Case Studies, Machine Learning
★ 4.7 (103) · Mixed · Course · 1 - 3 Months

Duke University
Skills you'll gain: Cloud Deployment, Cloud-Native Computing, Cloud Platforms, Application Deployment, Microservices, Cloud Computing, DevOps, Kubernetes, Cloud Management, Continuous Delivery, Containerization, Amazon Web Services, Serverless Computing, Virtual Machines, Performance Testing, Virtualization and Virtual Machines, System Monitoring, Flask (Web Framework), Performance Stress Testing, Continuous Monitoring
★ 4.4 (136) · Beginner · Course · 1 - 4 Weeks