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: Probability, Statistical Hypothesis Testing, Statistical Inference, Probability & Statistics, Probability Distribution, Statistical Methods, Statistics, Bayesian Statistics, Data Literacy, Sampling (Statistics), Applied Mathematics, Data Ethics, Data Analysis, Statistical Analysis, Quantitative Research, Data Science, Theoretical Computer Science, Sample Size Determination, Artificial Intelligence
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

University of California San Diego
Skills you'll gain: Apache Spark, Apache Hadoop, Data Integration, Big Data, Data Pipelines, Data Processing, Data Management, NoSQL, Analytics, Splunk, Database Systems, MongoDB, Pandas (Python Package), SQL, PostgreSQL
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Rmarkdown, Shiny (R Package), Ggplot2, Tidyverse (R Package), Data Visualization, Spatial Data Analysis, Statistical Visualization, Scatter Plots, Plot (Graphics), Dashboard, Data Import/Export, Interactive Data Visualization, R Programming, Data Visualization Software, Geospatial Information and Technology, Data Literacy, Statistical Reporting, Storyboarding, Data Science, Data Analysis
Beginner · Specialization · 3 - 6 Months
LearnQuest
Skills you'll gain: Data Warehousing, Cloud Deployment, Data Analysis, Cloud Computing, Data Architecture, Big Data, Cloud Services, Analytics, Analysis, Data Storage, Cloud Infrastructure, Scalability, Data Processing, Extract, Transform, Load, Public Cloud, Software As A Service, Database Architecture and Administration, Statistical Analysis, Data Strategy, Data Integration
Beginner · Specialization · 3 - 6 Months

Google Cloud
Skills you'll gain: Data Lakes, Data Warehousing, Data Architecture, Data Governance, Data Infrastructure, Google Cloud Platform, Metadata Management, Cloud Storage, Data Storage, Data Management, Data Integration, Data Storage Technologies, Big Data, Advanced Analytics, Operational Databases, Data Security
Intermediate · Course · 1 - 3 Months

Alberta Machine Intelligence Institute
Skills you'll gain: Feature Engineering, Data Preprocessing, Model Evaluation, Data Quality, Supervised Learning, Data Validation, Data Cleansing, Data Ethics, Applied Machine Learning, Machine Learning, Unsupervised Learning, Machine Learning Algorithms, Python Programming, Computer Programming, Linear Algebra, Statistical Analysis
Intermediate · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Graph Theory, Data Structures, Unstructured Data, Network Routing, Algorithms
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Data Structures, Algorithms, Software Visualization, Pseudocode, Programming Principles, Computational Thinking, Theoretical Computer Science, Computer Science, Technical Communication, Communication
Intermediate · Course · 1 - 4 Weeks

Yonsei University
Skills you'll gain: Spatial Data Analysis, Spatial Analysis, Geographic Information Systems, Geospatial Mapping, Database Management Systems, Big Data, Apache Hadoop, PostgreSQL, Network Analysis
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Plotly, Exploratory Data Analysis, Scatter Plots, Plot (Graphics), Data Visualization, Data Visualization Software, Interactive Data Visualization, Python Programming
Intermediate · Guided Project · Less Than 2 Hours

Meta
Skills you'll gain: Restful API, SQL, React Native, Databases, Data Persistence, Mobile Development, Data Storage Technologies, JSON, Data Management, Network Model, Application Development, Authentications
Intermediate · Course · 1 - 3 Months

MathWorks
Skills you'll gain: Data Storytelling, Model Evaluation, Feature Engineering, Supervised Learning, Dimensionality Reduction, Data Visualization, Data Integration, Data Preprocessing, Interactive Data Visualization, Exploratory Data Analysis, Data Import/Export, Classification Algorithms, Technical Communication, Data Analysis, Plot (Graphics), Applied Machine Learning, Data Visualization Software, Matlab, Regression Analysis, Data Science
Beginner · Specialization · 3 - 6 Months