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: Ggplot2, Plot (Graphics), Data Visualization Software, Data Visualization, Interactive Data Visualization, Scatter Plots, Statistical Visualization, Histogram, Graphic and Visual Design, R Programming, Graphical Tools, R (Software), Data Mapping, Geospatial Information and Technology, Spatial Data Analysis
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Data Visualization, Data Visualization Software, Interactive Data Visualization, Visualization (Computer Graphics), User Centered Design, Data Presentation, Usability, Human Centered Design, Design Research, User Research, Graphic and Visual Design, Usability Testing, Quantitative Research, Design Elements And Principles
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Extract, Transform, Load, MySQL Workbench, Data Warehousing, Database Design, MySQL, Interactive Data Visualization, Data Modeling, Dashboard, Database Administration, Data Visualization Software, Database Development, Star Schema, Dashboard Creation, Database Management, Analytics, Database Architecture and Administration, Data Architecture, Databases, Snowflake Schema, Data Analysis
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Reinforcement Learning, Data-Driven Decision-Making, Markov Model, Data Analysis, Time Series Analysis and Forecasting, Bayesian Statistics, Decision Making, Statistical Methods, Anomaly Detection, Probability Distribution, Statistical Analysis, Sampling (Statistics), Model Optimization, Clinical Trials
Intermediate · Course · 1 - 3 Months

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

Skills you'll gain: Dashboard, Dashboard Creation, IBM Cognos Analytics, Data Visualization, Data Presentation, Presentations, Data Wrangling, Exploratory Data Analysis, Business Intelligence Software, Statistical Visualization, Data Analysis, Interactive Data Visualization, Microsoft PowerPoint, Data Visualization Software, Data Cleansing, Business Intelligence, Looker (Software), Data Manipulation, Web Scraping, Data Collection
Advanced · Course · 1 - 3 Months

Northeastern University
Skills you'll gain: Information Privacy, Data Ethics, Law, Regulation, and Compliance, Data Security, Journalism, Regulation and Legal Compliance, Emerging Technologies, Algorithms, Artificial Intelligence
Beginner · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Predictive Modeling, Data Manipulation, Predictive Analytics, Big Data, Data Mining, Data Analysis, Data Science, Data-Driven Decision-Making, Unsupervised Learning, Analytics, Data Analysis Software, Model Evaluation, No-Code Development, Software Installation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Structures, Algorithms, Python Programming, Computer Programming, Geometry, Data Manipulation, Data Management, Data Analysis, Applied Mathematics
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Visualization, Data Presentation, Regression Analysis, Advanced Analytics, Statistical Analysis, Data Analysis, Statistical Modeling, Applied Machine Learning, Statistical Methods, Analytical Skills, Data Science, Predictive Modeling, Machine Learning Methods, Python Programming, AI literacy, Machine Learning, Portfolio Management
Advanced · Course · 1 - 4 Weeks

Starweaver
Skills you'll gain: Virtual Networking, Network Protocols, Network Planning And Design, Network Security, General Networking, Network Administration, Communication Systems, Network Performance Management, Network Architecture, Network Monitoring, Virtualization, Network Routing, Digital Communications, Network Infrastructure, Computer Networking, TCP/IP, Routing Protocols, Cybersecurity, Emerging Technologies, Cyber Security Strategy
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: PySpark, Matplotlib, Apache Spark, Big Data, Data Processing, Distributed Computing, Data Management, Data Visualization, Data Presentation, Data Analysis, Data Manipulation, Data Cleansing, Query Languages, Python Programming
Intermediate · Guided Project · Less Than 2 Hours