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.

Skills you'll gain: PySpark, Apache Spark, Apache Hadoop, Data Pipelines, Big Data, Data Storage Technologies, Data Processing, Distributed Computing, Data Architecture, Data Storage, Data Wrangling, Data Integration, Data Transformation, SQL, Data Manipulation, Performance Tuning
★ 2.8 (8) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Model Evaluation, Artificial Intelligence and Machine Learning (AI/ML), Classification Algorithms, Reinforcement Learning, Machine Learning Methods, Model Training, Applied Machine Learning, Machine Learning Algorithms, Artificial Intelligence, Dimensionality Reduction, Statistical Analysis, Supervised Learning, Unsupervised Learning, Data Preprocessing, Data Mining, Predictive Modeling, Random Forest Algorithm, Logistic Regression, Model Optimization, Data Manipulation
Intermediate · Course · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Calculus, Integral Calculus, Numerical Analysis, Advanced Mathematics, Mathematical Theory & Analysis, Mathematical Modeling, Mathematical Software, Data Analysis, Probability, Geometry, Applied Mathematics, Mechanics, Estimation, Probability & Statistics, Exploratory Data Analysis, Graphing, Physics
★ 4.8 (143) · Intermediate · Specialization · 3 - 6 Months
University of Michigan
Skills you'll gain: Logistic Regression, Model Evaluation, Statistical Inference, Predictive Analytics, R Programming, Predictive Modeling, Probability & Statistics, Statistical Modeling, Statistical Methods, Biostatistics, Regression Analysis, Statistical Analysis, Statistical Hypothesis Testing, Data Analysis, Epidemiology, Descriptive Statistics
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Time Series Analysis and Forecasting, Data Visualization, Statistical Visualization, Plot (Graphics), Data Preprocessing, Box Plots, Anomaly Detection, Plotly, Exploratory Data Analysis, Data Processing, Descriptive Analytics, Python Programming
★ 4.5 (19) · Intermediate · Guided Project · Less Than 2 Hours
Skills you'll gain: Apache Kafka, Multi-Tenant Cloud Environments, Data Pipelines, Real Time Data, Payment Card Industry (PCI) Data Security Standards, Data Governance, Scalability, Performance Tuning, Compliance Management, Data Architecture, Performance Stress Testing, Governance, Apache, Cost Management, System Configuration, Data Storage, Computer Architecture
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Google Sheets, Data Cleansing, Data Validation, Data Wrangling, Data Entry, Spreadsheet Software, Data Quality, Data Manipulation, Data Analysis, Data Transformation
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Dashboard, Dashboard Creation, Data Visualization Software, ChatGPT, Data Visualization, Analytics, Interactive Data Visualization, Data Storytelling, Data Analysis, Python Programming, Generative AI, Debugging
★ 4.6 (11) · Intermediate · Guided Project · Less Than 2 Hours

LearnKartS
Skills you'll gain: Tableau Software, Data Visualization, Data Presentation, Data Visualization Software, Dashboard, Dashboard Creation, Statistical Visualization, Pivot Tables And Charts, Trend Analysis, Spatial Data Analysis
★ 4.7 (14) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Storytelling, Data Presentation, Generative AI, Data Ethics, Prompt Engineering, Interactive Data Visualization, Plotly, Responsible AI, Data Visualization Software, Data-Driven Decision-Making, Matplotlib, AI literacy, Seaborn, Automation
★ 4 (11) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apache Airflow, Service Level Agreement, Data Pipelines, Workflow Management, Dependency Analysis, Scalability, Service Level, System Monitoring
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Structures, Javascript, Application Programming Interface (API), Computer Programming, Data Management
Intermediate · Course · 1 - 4 Weeks