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 California, Davis
Skills you'll gain: Open Web Application Security Project (OWASP), Authentications, Exploit development, Penetration Testing, Security Strategy, Vulnerability Scanning, Security Testing, Application Security, Vulnerability Assessments, Code Review, Vulnerability Management, Secure Coding, Authorization (Computing), Exploitation techniques, Java, Security Controls, Java Programming, Patch Management, Dependency Analysis, Docker (Software)
★ 4.4 (67) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Agile Methodology, Agile Product Development, Product Strategy, Product Design, Market Analysis, Product Planning, Market Research, Customer Analysis, Target Market, Oral Expression, Stakeholder Communications, Data Analysis Software, Portfolio Management, Verbal Communication Skills, Data-Driven Decision-Making, Decision Making, Team Oriented, Data Analysis, Product Knowledge, Technical Communication
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Competitive Analysis, Market Research, Consumer Behaviour, Market Analysis, Customer Analysis, Product Management, Persona Development, Target Market, Data Presentation, Product Marketing, Target Audience, Data Storytelling, Market Intelligence, Report Writing, Research Reports, Market Opportunities, User Research, Competitive Intelligence, Data Analysis, Critical Thinking
★ 4.6 (13) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsible AI, HR Tech, Recruitment, Employee Engagement, Generative AI, Data Ethics, Human Resource Management, Human Resources, Talent Recruitment, AI Personalization, Recruitment Strategies, Employee Performance Management, Business Ethics, AI Integrations
★ 4.6 (39) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Hardware Design, Electronic Hardware, Schematic Diagrams, Computer-Aided Design, Electronic Systems, Mechanical Design, Drafting and Engineering Design, Electronics Engineering, Electrical Engineering, 3D Modeling, Electronics, Electronic Components, Simulation and Simulation Software, 3D Assets, Simulations, Design Software, Verification And Validation, Open Source Technology, Data Import/Export
★ 5 (35) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Power Automate/Flow, Email Automation, Verification And Validation, Microsoft Power Platform, Microsoft Excel, Data Import/Export, Microsoft 365, Microsoft Development Tools, Spreadsheet Software
★ 4.4 (29) · Beginner · Guided Project · Less Than 2 Hours

LearnKartS
Skills you'll gain: Salesforce, Salesforce Development, User Provisioning, Identity and Access Management, Enterprise Application Management, Application Deployment, Security Management, Security Controls, Data Management, Customer Relationship Management (CRM) Software, Workflow Management, Internal Communications, Training and Development, Customer Service
★ 3.6 (14) · Intermediate · Course · 1 - 4 Weeks

Indian Institute for Human Settlements
Skills you'll gain: Editing, Storytelling, Writing and Editing, Photography, Content Creation, Visual Storytelling, Infographics, Writing, Driving engagement, Media and Communications, Social Media, Instagram
★ 4.8 (9) · Mixed · Course · 1 - 3 Months

Packt
Skills you'll gain: Data Security, Data Loss Prevention, Security Management, Data Management, Security Controls, Information Assurance, Data Governance, Information Management, Data Storage
★ 4.6 (20) · Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Feature Engineering, Data Preprocessing, Model Optimization, Dataflow, Tensorflow, Data Pipelines, Data Transformation, Statistical Machine Learning, Keras (Neural Network Library), Statistical Methods, Machine Learning Methods, Applied Machine Learning, Machine Learning, Real Time Data
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Performance Tuning, Splunk, Role-Based Access Control (RBAC), System Monitoring, Distributed Computing, System Configuration, Systems Administration, Data Management, Enterprise Security, Data Security, Scalability, Real Time Data, Authentications
Mixed · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Data-Driven Marketing, Conversion Funnel Analysis, Customer Analysis, Digital Analysis, Campaign Management, Journey Mapping, Customer Insights, Ad Hoc Reporting
Beginner · Course · 1 - 4 Weeks