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 Colorado Boulder
Skills you'll gain: Statistical Modeling, R Programming, Statistical Analysis, Statistical Programming, Data Analysis, R (Software), Data Science, Data Ethics, Statistical Software, Statistical Methods, Regression Analysis, Predictive Modeling, Machine Learning, Logistic Regression, Probability & Statistics, Statistical Inference, Model Evaluation, Probability Distribution, Linear Algebra, Calculus
★ 4.2 (24) · Intermediate · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: Email Security, Productivity Software, Microsoft Outlook, File Management, Collaborative Software, Presentations, Microsoft Teams, Google Docs, Calendar Management, Microsoft PowerPoint, Control Panels, Gmail, Slack (Software), Microsoft Office, Microsoft Word, Spreadsheet Software, Meeting Facilitation, Google Workspace, Google Sheets, Software Installation
★ 4.7 (612) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Generative AI, Generative Model Architectures, Large Language Modeling, LLM Application, Generative Adversarial Networks (GANs), Retrieval-Augmented Generation, OpenAI, Hugging Face, OpenAI API, Multimodal Prompts, Responsible AI, AI Security, Autoencoders, Model Deployment, Fine-tuning, Application Deployment
★ 4.5 (11) · Intermediate · Course · 1 - 3 Months

Total Seminars
Skills you'll gain: Cryptographic Protocols, Public Key Infrastructure, Threat Detection, Cloud Security, IT Security Architecture, Network Security, Public Key Cryptography Standards (PKCS), Cryptography, Cloud Computing, Key Management, Cloud Infrastructure, Enterprise Architecture, Cloud Services, Virtualization, Security Engineering, Security Management, Data Management, Security Software, Security Awareness, TCP/IP
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Oracle SQL Developer, Oracle Databases, Database Design, Data Manipulation, SQL, Relational Databases, Database Management, Database Management Systems, Databases, Database Development, Query Languages, Data Transformation, Data Management, Case Studies, Pivot Tables And Charts, Data Analysis, Data Integration, Performance Tuning, Business Intelligence, Analytics
★ 4.6 (30) · Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Security Information and Event Management (SIEM), Role-Based Access Control (RBAC), Dashboard Creation, Threat Detection, Incident Response, Data Import/Export, Identity and Access Management, Computer Security Incident Management, Data Integration, Data Modeling
Beginner · Course · 1 - 3 Months

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Public Key Infrastructure, Cryptography, Public Key Cryptography Standards (PKCS), Cryptographic Protocols, Encryption, Authentications, Data Encryption Standard, Advanced Encryption Standard (AES), Key Management, Network Protocols, Email Security, Cybersecurity, Network Security, Security Software, Data Integrity, Multi-Factor Authentication, Firewall
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, C# (Programming Language), Development Environment, .NET Framework, Computer Programming, Programming Principles, Microsoft Development Tools, Microsoft Visual Studio, Data Structures, Computer Science, Algorithms, Software Development Tools, Computer Programming Tools, Memory Management, Debugging, Software Installation, Data Storage
Intermediate · Course · 1 - 3 Months
University of Michigan
Skills you'll gain: Mathematical Modeling, Systems Thinking, Strategic Decision-Making, Innovation, Diversity Awareness, Social Sciences, Predictive Modeling, Strategic Thinking, Decision Making, Complex Problem Solving, Critical Thinking, Network Analysis, Economics, Economic Development, Probability, Market Dynamics, Coordination
★ 4.8 (2.3K) · Intermediate · Course · 1 - 3 Months

University of Geneva
Skills you'll gain: Analysis, Data Synthesis, Data Compilation, Data Literacy, Analytical Skills, Key Performance Indicators (KPIs), Correlation Analysis, Statistical Methods, International Relations, Statistics, Economics, Market Opportunities, Economics, Policy, and Social Studies, Data Analysis, Data Collection, Social Studies, Data Quality, Data Transformation, Job Analysis, Human Development
★ 4.6 (50) · Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Linear Algebra, Applied Mathematics, Algebra, Advanced Mathematics, Geometry, Applied Machine Learning, Markov Model
★ 4.8 (78) · Mixed · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Email Automation, Workflow Management, Agentic Workflows, AI Workflows, No-Code Development, Deepseek, LLM Application, Generative AI Agents, Large Language Modeling, Generative AI, Automation, Application Deployment, AI Integrations, Google Sheets, Context Management, Gmail, Software Installation
★ 4.1 (46) · Beginner · Course · 1 - 4 Weeks