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: Calculus, Applied Mathematics, Data Modeling, Model Optimization, Estimation, Graphing, Mathematical Modeling, Data Analysis Software, Algebra, Cost Estimation, Mathematical Software, Linear Algebra, Trigonometry, General Mathematics, Advanced Mathematics, Analysis, Derivatives, Mathematical Theory & Analysis, Geometry, Data Analysis
Intermediate · Specialization · 3 - 6 Months

Tsinghua University
Skills you'll gain: Data Structures, Algorithms, Computer Programming
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Big Data, Analytics, Query Languages, Google Cloud Platform, Data Processing, Data Analysis, Data Integration
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Amazon Web Services, AWS Kinesis, Amazon DynamoDB, Amazon S3, AWS Identity and Access Management (IAM), Data Infrastructure, Dataflow, Data Storage Technologies, Data Storage, Big Data, Cloud Storage, Real Time Data, Internet Of Things, Data Processing, Cloud Computing, Operational Databases, Data Security, Data Collection, Scalability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Entry, Microsoft Excel, Pivot Tables And Charts, Excel Formulas, Spreadsheet Software, Data Visualization, Data Visualization Software, Dashboard, Microsoft Office, Case Studies, Data Management, Business Analytics, Exploratory Data Analysis, Productivity Software, Business, Analysis, Data Presentation, Data Analysis, Data Manipulation, Data Literacy
Beginner · Specialization · 1 - 3 Months

Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Power BI, Data-Driven Decision-Making, Data Analysis, Extract, Transform, Load, Business Intelligence, Data Collection, Data Transformation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: OpenAI API, Prompt Engineering, Generative AI Agents, Data Analysis, Generative AI, OpenAI, Data Visualization Software, Data Manipulation, Artificial Intelligence, Python Programming
Intermediate · Guided Project · Less Than 2 Hours

Universidad Nacional Autónoma de México
Skills you'll gain: Digital Signal Processing, Musical Composition, Music, Music Theory, Digital Communications, Patch Management, Performance Tuning, Programming Principles, Music Performance, Dataflow, Data Sharing, Interoperability, Development Environment, File I/O, Open Source Technology
Intermediate · Course · 1 - 4 Weeks

Imperial College London
Skills you'll gain: Run Chart, Qualitative Research, Continuous Quality Improvement (CQI), Data Quality, Quantitative Research, Data Collection, Data-Driven Decision-Making, Statistical Methods, Data Analysis, Systems Of Measurement, Time Series Analysis and Forecasting
Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Cloud Security, Open Web Application Security Project (OWASP), Data Governance, Data Management, Data Security, Cloud API, Secure Coding, Application Security, DevSecOps, Cloud Applications, Key Management, Encryption, Information Privacy, OAuth, Cloud Storage, API Gateway, Threat Modeling, Data Encryption Standard, Risk Management Framework
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Trend Analysis, Data Manipulation, Data Analysis, SAS (Software), Exploratory Data Analysis, Data Transformation, Analysis, Analytics, Data Visualization, Interactive Data Visualization, Data Visualization Software, Data Presentation, Business Reporting, Statistical Visualization, Business, Report Writing, Graphing, Statistical Programming
Mixed · Course · 1 - 4 Weeks