Data wrangling courses can help you learn data cleaning, transformation techniques, and data integration methods. You can build skills in handling missing values, reshaping datasets, and merging data from multiple sources. Many courses introduce tools such as Python libraries like Pandas and NumPy, as well as SQL for database management, showing how these skills streamline data preparation for analysis and visualization.

Johns Hopkins University
Skills you'll gain: Statistical Hypothesis Testing, Sampling (Statistics), Regression Analysis, Bayesian Statistics, Statistical Analysis, Probability & Statistics, Statistical Inference, Statistical Methods, Statistical Modeling, Linear Algebra, Probability, Probability Distribution, R Programming, Biostatistics, Data Analysis, Data Science, Statistics, Mathematical Modeling, Data Modeling, Applied Mathematics
★ 4.4 (800) · Advanced · Specialization · 3 - 6 Months

Skills you'll gain: Amazon S3, Cloud Security, Data Security, Cloud Storage, AWS Identity and Access Management (IAM), Encryption, Key Management, Security Controls, Data Storage Technologies, Data Storage, Authorization (Computing), Cryptography, Identity and Access Management, Cryptographic Protocols, Public Key Infrastructure, Data Sharing, Data Access, Disaster Recovery, Record Keeping
Intermediate · Course · 1 - 4 Weeks

Tsinghua University
Skills you'll gain: Data Structures, Algorithms, Graph Theory, Computational Thinking, Programming Principles, Database Management Systems, System Design and Implementation, Theoretical Computer Science, Computer Programming, Computer Science
★ 2.9 (40) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Process Analysis, Business Process, Business Process Modeling, Process Management, Business Process Improvement, Business Process Management, Process Modeling, Process Improvement and Optimization, Data Mining, Business Workflow Analysis, Process Optimization, Process Improvement, Business Intelligence, Workflow Management, Performance Improvement, Event Monitoring, Performance Analysis, Data Quality, Verification And Validation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Warehousing, IBM Cognos Analytics, Extract, Transform, Load, Database Architecture and Administration, Data Visualization, Database Design, Dashboard Creation, Data Modeling, MySQL, Dashboard, Business Intelligence, Database Management, Data Architecture, Data Pipelines, PostgreSQL, Statistical Reporting, Shell Script, SQL, Data Transformation, Data Import/Export
★ 4.8 (29) · Intermediate · Course · 1 - 3 Months

Fractal Analytics
Skills you'll gain: Generative AI, Generative AI Agents, Retrieval-Augmented Generation, Enterprise Architecture, Metadata Management, Data Science, Machine Learning
★ 4.9 (7) · Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Prompt Engineering, ChatGPT, Data Validation, Data Analysis, Data-Driven Decision-Making, Analytics, Analytical Skills
★ 4.7 (32) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Storytelling, Data Presentation, SQL, Data Visualization Software, Database Design, AWS SageMaker, Unsupervised Learning, Data Visualization, Interactive Data Visualization, Dashboard, Feature Engineering, Database Management, Exploratory Data Analysis, A/B Testing, Tableau Software, Pandas (Python Package), Matplotlib, Python Programming, Data Analysis, Machine Learning
★ 3.6 (31) · Beginner · Professional Certificate · 3 - 6 Months
University of Glasgow
Skills you'll gain: Descriptive Analytics, ICD Coding (ICD-9/ICD-10), Health Informatics, Clinical Data Management, Medical Records, Data Mining, Medical Coding, Electronic Medical Record System, Electronic Medical Record, Patient Flow, Predictive Analytics, Clinical Research, Database Design, Health Information Management, Descriptive Statistics, Applied Machine Learning, Predictive Modeling, Relational Databases, Precision Medicine, Data Access
★ 4.6 (15) · Intermediate · Course · 1 - 4 Weeks

Sage Publications
Skills you'll gain: SPSS (Software), Plot (Graphics), SPSS, Data Visualization, Correlation Analysis, Statistical Visualization, Descriptive Statistics, Histogram, Data Visualization Software, Scatter Plots, Data Literacy, Statistical Reporting, Data Presentation, Statistical Software, Probability & Statistics, Political Sciences, Exploratory Data Analysis, Data Analysis, Statistical Inference, International Relations
Beginner · Course · 1 - 3 Months
University of Michigan
Skills you'll gain: Matplotlib, Data Visualization, Plot (Graphics), Data Visualization Software, Interactive Data Visualization, Statistical Visualization, Data Presentation, Data Literacy, Graphing, Graphic and Visual Design, Data Manipulation, Python Programming
★ 4.5 (6.3K) · Intermediate · Course · 1 - 4 Weeks

Maven Analytics
Skills you'll gain: Prompt Engineering, Generative AI, Google Gemini, ChatGPT, Data Analysis Expressions (DAX), Power BI, Deep Learning, Excel Formulas, Analytics, Google Sheets, AI literacy, Microsoft Excel, Artificial Intelligence, Data Analysis, Python Programming, SQL, Business Intelligence, Data Science, Debugging
★ 4.8 (24) · Beginner · Course · 1 - 3 Months