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.

Amazon Web Services
Skills you'll gain: Descriptive Analytics, Analytics, Data Analysis, Dashboard, Advanced Analytics, Data-Driven Decision-Making, Data Visualization, Amazon Web Services, Big Data, Analytical Skills, Cloud Services, Cloud Computing
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Professional Networking, Data Analysis, Interviewing Skills, Business Writing, Verbal Communication Skills, Job Analysis, Presentations, Recruitment, Relationship Building, Market Research, Analytical Skills, Portfolio Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Plotly, Plot (Graphics), Data Visualization, Statistical Visualization, Box Plots, Scatter Plots, Interactive Data Visualization, Data Visualization Software, Histogram, Statistical Analysis, Data Analysis, Probability
Beginner · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Apache Hadoop, Big Data, Apache Hive, Apache Spark, NoSQL, Data Infrastructure, File Systems, Data Processing, Data Management, Analytics, Data Science, Databases, SQL, Query Languages, Data Manipulation, Java, Data Structures, Distributed Computing, Scripting Languages, Performance Tuning
Intermediate · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Data Warehousing, Data Architecture, Data Storage, Extract, Transform, Load, Database Architecture and Administration, Data Integration, Star Schema, Cloud Storage, Data Mart, Database Design, Snowflake Schema, Query Languages, Metadata Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Shiny (R Package), Exploratory Data Analysis, Data Collection, Ggplot2, Data Wrangling, Tidyverse (R Package), Data Science, Predictive Modeling, Data Visualization, Dashboard, Statistical Analysis, Data Analysis, Data Presentation, Data Manipulation, Interactive Data Visualization, R Programming, Data Cleansing, Data Transformation, Statistical Modeling, Regression Analysis
Intermediate · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Probability, Probability & Statistics, Sampling (Statistics), Probability Distribution, Statistics, Data Science, Statistical Inference, Descriptive Statistics, Statistical Analysis, General Mathematics
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Ggplot2, Plot (Graphics), Data Visualization Software, Exploratory Data Analysis, Data Presentation, Data Storytelling, Scatter Plots, Tidyverse (R Package), R Programming, Box Plots, Histogram, Animations, Data Manipulation
Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: SQL, Data Manipulation, Relational Databases, Database Design, Databases, Data Integrity, Database Management Systems, Debugging, Data Management
Intermediate · Guided Project · Less Than 2 Hours

University of Michigan
Skills you'll gain: Data Processing, Data Cleansing, Data Visualization, Data Analysis, Data Modeling, Python Programming, Data Visualization Software, Exploratory Data Analysis, Web Scraping, Algorithms
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Statistical Inference, Statistical Modeling, Statistical Hypothesis Testing, Regression Analysis, R Programming, Data Ethics, Experimentation, Research Design, Statistical Methods, Data Science, Data Analysis, Statistical Analysis, Data Modeling, Predictive Modeling, Mathematical Modeling, Probability & Statistics, A/B Testing, Quantitative Research, Machine Learning, Model Evaluation
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

University of California, Davis
Skills you'll gain: Data Validation, jQuery, Javascript and jQuery, Data Integration, Data Manipulation, JSON, Ajax, Event-Driven Programming, Javascript, Frontend Performance
Beginner · Course · 1 - 4 Weeks