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.

Skills you'll gain: JSON, jQuery, Javascript and jQuery, Web Development Tools, Event-Driven Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Storytelling, Qualitative Research, Market Research, Quantitative Research, Data-Driven Decision-Making, Benchmarking, Data Presentation, Descriptive Statistics, Competitive Analysis, Analytical Skills, Brand Awareness, Research Design, Market Dynamics, Data Collection, Data Literacy, Data Analysis, ChatGPT, Data Analysis Software, Microsoft Excel, R Programming
★ 4.5 (249) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Data Visualization, Dashboard, Dashboard Creation, Microsoft Excel, Business Reporting, Excel Formulas, Spreadsheet Software, Performance Reporting, Case Studies, People Analytics, Performance Analysis, Business Analytics, Variance Analysis, Trend Analysis, Data Analysis, Employee Performance Management, Performance Measurement, Project Documentation, Business Process Automation, Data Presentation
★ 5 (7) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Apache Kafka, Real Time Data, Data Pipelines, Apache Spark, Scala Programming, Spring Boot, Java Programming, Development Environment, Apache, JSON, Data Processing, Information Architecture, Data Transformation, Solution Design, Content Management, Data Import/Export, Performance Tuning, Software Architecture, Data Validation, System Configuration
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Apache Hadoop, Extract, Transform, Load, Data Pipelines, Data Processing, Data Transformation, Data Manipulation, Apache, Scripting, Debugging, Query Languages, Scripting Languages, Program Development, Open Source Technology
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Google Cloud Platform, Dataflow, Data Import/Export, Data Pipelines, Data Lakes, Feature Engineering, Real Time Data, Dashboard Creation, Tensorflow, Apache Kafka, Apache Spark, Dashboard, Big Data, Data Migration, Cloud Engineering, Data Warehousing, Model Deployment, Data Governance, Data Infrastructure, Applied Machine Learning
★ 4.3 (82) · Intermediate · Specialization · 3 - 6 Months

Princeton University
Skills you'll gain: Data Structures, Algorithms, Graph Theory, Java, Performance Testing, Java Programming, Computational Thinking, Memory Management, Spatial Data Analysis
★ 4.9 (12K) · Intermediate · Course · 3 - 6 Months

University of Pittsburgh
Skills you'll gain: Statistical Analysis, Statistical Methods, Statistical Modeling, Predictive Modeling, Data Analysis, Statistics, Integral Calculus, Probability & Statistics, Data Science, Probability Distribution, Calculus, Mathematics and Mathematical Modeling, Applied Mathematics, Derivatives, Probability, Mathematical Modeling, Machine Learning, Algorithms
Beginner · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Logistic Regression, Model Evaluation, Statistical Inference, Predictive Analytics, R Programming, Predictive Modeling, Probability & Statistics, Statistical Modeling, Statistical Methods, Biostatistics, Regression Analysis, Statistical Analysis, Statistical Hypothesis Testing, Data Analysis, Epidemiology, Descriptive Statistics
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Time Series Analysis and Forecasting, Data Visualization, Statistical Visualization, Plot (Graphics), Data Preprocessing, Box Plots, Anomaly Detection, Plotly, Exploratory Data Analysis, Data Processing, Descriptive Analytics, Python Programming
★ 4.5 (19) · Intermediate · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Dataflow, Google Cloud Platform, Data Pipelines, Apache Kafka, Real Time Data, Extract, Transform, Load, Data Integration, Data Processing, Data Import/Export, Time Series Analysis and Forecasting, Analysis, Data Transformation, Data Storage, Managed Services
★ 4.6 (1.3K) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apache Airflow, Data Pipelines, Scalability, Feature Engineering, Extract, Transform, Load, Workflow Management, AI Workflows, AI Orchestration, Data Infrastructure, Data Integration, Database Design, Data Modeling, Data Architecture, Data Quality, Data Processing, Data Storage
Intermediate · Course · 1 - 4 Weeks