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.

L&T EduTech
Skills you'll gain: Laboratory Testing, Laboratory Experience, Civil Engineering, Engineering Analysis, Experimentation, Building Codes, Research Reports, Structural Analysis, Analytical Testing, Engineering Practices, Failure Analysis, Test Equipment
★ 4.7 (9) · Intermediate · Course · 1 - 4 Weeks

Corporate Finance Institute
Skills you'll gain: Tableau Software, Data Modeling, Dashboard Creation, Dashboard, E-Commerce, Performance Reporting, Data Visualization Software, Data Visualization, Performance Analysis, Data Presentation, Interactive Data Visualization, Data Analysis, Regional Sales, Business Analysis, Branding
★ 4.9 (8) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Process Improvement and Optimization, Process Optimization, Process Improvement, Brainstorming, Process Analysis, Process Management, Quality Improvement, Continuous Improvement Process, Business Process Improvement, Problem Management, Root Cause Analysis, Creative Problem-Solving, Innovation, Operational Efficiency, Knowledge Transfer, Collaboration, Business Technologies, Data Management
★ 4.7 (29) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cryptography, Network Security, Virtual Networking, Software-Defined Networking, Network Infrastructure, Network Architecture, Encryption, Network Performance Management, Virtualization, Program Development, Hardware Architecture, Open Source Technology, Performance Tuning, Unit Testing
★ 4.6 (137) · Beginner · Course · 1 - 4 Weeks

Università di Napoli Federico II
Skills you'll gain: Presentations, Sales Presentations, Oral Expression, Business Communication, Business Correspondence, Verbal Communication Skills, Negotiation, Workplace inclusivity, Business Writing, English Language, Interviewing Skills, Data Visualization, Writing, Communication, Report Writing, Taking Meeting Minutes, Recruitment, Interpersonal Communications, Vocabulary
★ 4.6 (32) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Microsoft Windows, Authentications, Operating System Administration, Azure Active Directory, Microsoft Intune (Mobile Device Management Software), Identity and Access Management, System Configuration, User Provisioning, Active Directory, Remote Access Systems, Software Installation, Role-Based Access Control (RBAC), Automation, Data Migration
★ 4.7 (14) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Document Management, Microsoft Power Platform, Data Entry, Microsoft 365, Application Design
★ 4.2 (44) · Beginner · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Clinical Research, Clinical Trials, Pharmaceuticals, Pharmacology, Medical Science and Research, Epidemiology, Scientific Methods, Statistical Methods, Data-Driven Decision-Making, Regression Analysis, Logistic Regression
★ 4.5 (13) · Mixed · Course · 1 - 4 Weeks

Politecnico di Milano
Skills you'll gain: Product Lifecycle Management, Climate Change Mitigation, Energy and Utilities, Environmental Science, Sustainable Development, Mathematical Modeling, Sustainable Engineering, Sustainable Systems, Analysis, Microsoft Excel, Process Analysis, Data Literacy, Scenario Testing, Model Optimization, Open Source Technology
★ 4.4 (27) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Context Engineering, Agentic Workflows, AI Orchestration, Tool Calling, Generative AI, Gemini, Artificial Intelligence, Google Gemini, Retrieval-Augmented Generation, Model Optimization, Embeddings, Workflow Management, Python Programming, Data Validation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Generative Model Architectures, AI Product Strategy, AI Integrations, Risking, Decision Intelligence
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Cryptography, Data Integrity, Encryption, Authentications, Key Management, Data Security, Public Key Cryptography Standards (PKCS), Digital Communications
★ 4.6 (100) · Intermediate · Course · 1 - 4 Weeks