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.

Johns Hopkins University
Skills you'll gain: Version Control, GitHub, Git (Version Control System), Data Transformation, Data Science, Data Analysis, R (Software), R Programming, Software Installation
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Graph Theory, Algorithms, Game Theory, Data Structures, Computer Programming, Computational Thinking, Problem Solving
Intermediate · Course · 1 - 3 Months

Universitat Politècnica de València
Skills you'll gain: Microsoft Excel, Data Analysis Expressions (DAX), Data Import/Export, Excel Formulas, Business Intelligence Software, Pivot Tables And Charts, Excel Macros, Business Intelligence, Dashboard, Dashboard Creation, Data Modeling, Extract, Transform, Load, Data Presentation, Data-Driven Decision-Making, Analytics, Data Analysis, Data Transformation, Data Cleansing, Data Preprocessing, Data Management
Advanced · Course · 1 - 3 Months

Coursera
Skills you'll gain: SQL, GitHub, Version Control, Git (Version Control System), MySQL, Query Languages, Jupyter, Development Environment
Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Prompt Patterns, Generative AI Agents, AI Orchestration, AI Workflows, Business Process Automation, Make.com, Large Language Modeling, Automation, ChatGPT, Agentic systems, Generative Model Architectures, Agentic Workflows, LangChain, Responsible AI, AI Security, Workflow Management, OpenAI, Process Optimization, Application Programming Interface (API), Decision Support Systems
Beginner · Specialization · 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
Build toward a degree
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Oracle Databases, PL/SQL, Data Modeling, Database Design, Data Architecture, Extract, Transform, Load, SQL, Google Cloud Platform, Relational Databases, Data Import/Export, Query Languages, Database Architecture and Administration, Identity and Access Management, Data Storage, Data Sharing
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Operational Databases, Database Administration, Database Architecture and Administration, Relational Databases, Database Design, Database Management, PostgreSQL, Data Migration, Google Cloud Platform, Disaster Recovery, System Monitoring, Data Access, Performance Tuning, Cloud Deployment, Capacity Management, Scalability
Intermediate · Course · 1 - 4 Weeks

EDHEC Business School
Skills you'll gain: Investment Management, Portfolio Management, Text Mining, Portfolio Risk, Applied Machine Learning, Asset Management, Network Analysis, Investments, Data Visualization Software, Machine Learning Methods, Return On Investment, Statistical Machine Learning, Financial Statement Analysis, Financial Data, Market Data, Unstructured Data, Predictive Modeling, Web Scraping, Finance, Risk Management
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Multi-Factor Authentication, Authentications, Identity and Access Management, Security Controls, Security Awareness, Data Security, Safety and Security, Security Management, Human Factors (Security), Cyber Security Strategy
Intermediate · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Intellectual Property, Intrusion Detection and Prevention, Cyber Attacks, Cybersecurity, Data Security, Storytelling, Content Creation, Cyber Security Strategy, Digital Publishing, Vulnerability Assessments, Non-Verbal Communication, Health Technology, Interpersonal Communications, Communication, Personal Care, Constructive Feedback, Problem Solving, Collaboration, Computer Literacy, Data Literacy
Beginner · Specialization · 3 - 6 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Business Workflow Analysis, Business Analysis, Analytics, Data Preprocessing, Data Analysis, Data-Driven Decision-Making, Descriptive Analytics, Data Presentation, Business Solutions, Python Programming
Build toward a degree
Beginner · Course · 1 - 4 Weeks