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 Maryland, College Park
Skills you'll gain: Data Storytelling, Data Visualization, Digital Transformation, Data Presentation, Data-Driven Decision-Making, Business Transformation, Presentations, Data Literacy, Decision Making, Dashboard, Business Analytics, Strategic Decision-Making, Customer Engagement, Analytics, Business Intelligence, Customer experience strategy (CX), Data Strategy, Case Studies, Leadership, Stakeholder Communications
Beginner · Specialization · 3 - 6 Months

Arizona State University
Skills you'll gain: Statistical Methods, Bayesian Statistics, Statistics, Probability & Statistics, Data Storage Technologies, Analytical Skills, Exploratory Data Analysis, Data Storage, Database Software, Estimation, Data-Driven Decision-Making, Applied Machine Learning, Supervised Learning, Markov Model, Logistic Regression, Statistical Hypothesis Testing, Predictive Modeling, Simulations, Simulation and Simulation Software, Regression Testing
Intermediate · Specialization · 3 - 6 Months

EDUCBA
Skills you'll gain: Data Lakes, Microsoft Azure, Stored Procedure, Data Architecture, Performance Tuning, Data Management, Query Languages, Data Manipulation, Scripting, SQL, Data Processing, Windows PowerShell, Microsoft Visual Studio, Command-Line Interface, Heat Maps
Intermediate · Course · 1 - 3 Months

Macquarie University
Skills you'll gain: Cryptography, Identity and Access Management, Information Privacy, Encryption, Personally Identifiable Information, Data Security, Authentications, User Provisioning, Cybersecurity, Threat Modeling, Multi-Factor Authentication, Security Assertion Markup Language (SAML), Vulnerability Assessments, Cyber Attacks, Computer Security, Cyber Security Strategy, Data Management, Security Management, Cyber Risk, Security Awareness
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Time Series Analysis and Forecasting, Recurrent Neural Networks (RNNs), Forecasting, SAS (Software), Advanced Analytics, Predictive Modeling, Applied Machine Learning, Statistical Analysis, Machine Learning Methods, Regression Analysis, Bayesian Statistics, Statistical Modeling
Intermediate · Course · 1 - 3 Months

Queen Mary University of London
Skills you'll gain: Analytics, Data Analysis, Statistical Analysis, Correlation Analysis, Quantitative Research, Regression Analysis, Marketing Analytics, Probability & Statistics, Statistical Methods, Data Cleansing, Digital Marketing, Exploratory Data Analysis, Market Research, Data Preprocessing, Return On Investment
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Apache Airflow, Data Pipelines, Data Integration, AWS Kinesis, Infrastructure as Code (IaC), Terraform, Extract, Transform, Load, Amazon CloudWatch, Data Quality, Amazon Web Services, CI/CD, Data Processing, NoSQL, Relational Databases, Network Troubleshooting
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Google Cloud Platform, Dataflow, Data Pipelines, Model Deployment, Data Warehousing, Data Lakes, Real Time Data, Data Preprocessing, Data Processing, Dashboard, Tensorflow, Cloud Engineering, Data Infrastructure, Apache Spark, Big Data, Extract, Transform, Load, Applied Machine Learning, Query Languages, Cloud Storage, Scripting Languages
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Data Security, Data Migration, Data Governance, Extract, Transform, Load, Cloud Storage, Data Architecture, Data Management, Data Integration, Data Storage, Enterprise Architecture, Data Quality, Personally Identifiable Information, Data Modeling, Incident Response, Security Controls, Information Privacy, Data Infrastructure, Data Warehousing, Threat Detection, Law, Regulation, and Compliance
Advanced · Specialization · 1 - 3 Months

Skills you'll gain: Microsoft Copilot, Sales Development, Sales Strategy, Customer Data Management, Customer Relationship Management (CRM) Software, Sales, Data Cleansing, Customer Analysis, Personalized Service, AI Personalization, Sales Management, Customer Insights, Customer Engagement, Data Quality, Data Integration, Predictive Analytics, Data Analysis, Consumer Behaviour
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Apache Kafka, Data Warehousing, Extract, Transform, Load, Microsoft SQL Servers, Snowflake Schema, Star Schema, Performance Tuning, Data Pipelines, Cloud Computing Architecture, Business Intelligence, Real Time Data, Apache Hadoop, Data Modeling, Data Quality, Responsible AI, Apache Spark, SQL, Generative AI, Data Governance, Quality Management
Intermediate · Specialization · 1 - 3 Months

Arizona State University
Skills you'll gain: Computational Thinking, Data Strategy, Unstructured Data, Data Access, Data Literacy, Data Analysis, Data Management, Data Collection
Beginner · Course · 1 - 3 Months