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.

American Psychological Association
Skills you'll gain: Statistical Hypothesis Testing, Sample Size Determination, Probability & Statistics, Probability Distribution, Statistical Methods, Quantitative Research, Statistical Inference, Statistics, Sampling (Statistics), Statistical Analysis, Probability, Scientific Methods, Data Analysis, Research, Psychology
Beginner · Course · 1 - 3 Months

Pragmatic AI Labs
Skills you'll gain: User Accounts, User Provisioning, Ubuntu, Command-Line Interface, System Configuration, System Monitoring, Unix Commands, Unix Shell, Spreadsheet Software, Operating System Administration, Systems Administration, Linux Commands, Unix, Linux, Linux Administration, Linux Servers, Software Installation, File Management, Desktop Support, Data Engineering
Beginner · Course · 1 - 3 Months

Skills you'll gain: Blockchain, Cryptography, FinTech, Digital Assets, Cryptographic Protocols, Payment Systems, Encryption, Financial Systems, Investments, Transaction Processing, Finance, Financial Regulation, Regulatory Compliance, Market Dynamics
Mixed · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Graph Theory, Algorithms, Network Routing, Programming Principles, Data Structures, Network Analysis, Network Model
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Looker (Software), Pivot Tables And Charts, Data Modeling, Exploratory Data Analysis, Data Analysis, Query Languages
Beginner · Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Machine Learning Methods, Dimensionality Reduction, Unsupervised Learning, Machine Learning Algorithms, Applied Machine Learning, Machine Learning, Regression Analysis, Supervised Learning, Data Science, Decision Tree Learning, Statistical Analysis, Classification Algorithms, Predictive Modeling, Artificial Neural Networks, Logistic Regression
Build toward a degree
Intermediate · Course · 1 - 3 Months

SkillsBooster Academy
Skills you'll gain: Email Marketing, Email Automation, Prompt Engineering, AI Personalization, Personalized Campaigns, Marketing Automation, Digital Marketing Tools, Driving engagement, Content Performance Analysis, Responsible AI, Data Ethics, AI Workflows, ChatGPT, Marketing, Generative AI, Anthropic Claude, Target Audience, Artificial Intelligence, Automation, Deepseek
Beginner · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Journey Mapping, Data Ethics, Responsible AI, Generative AI, AI Enablement, Customer Insights, User Experience, User Research, Product Management, Customer Analysis, Market Opportunities, Ethical Standards And Conduct, Interviewing Skills, Innovation, Market Research, Prioritization
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Model Evaluation, Computer Vision, Convolutional Neural Networks, Image Analysis, Transfer Learning, Model Training, Fine-tuning, Matlab, Artificial Neural Networks, Deep Learning, Applied Machine Learning, Classification Algorithms, Predictive Modeling, Performance Tuning
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Identity and Access Management, Data Warehousing, Google Cloud Platform, Data Import/Export, Role-Based Access Control (RBAC), Database Management, SQL, Database Design, Data Architecture, Data Sharing, Database Architecture and Administration, Data Modeling
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Collaborative Software, Scalability, Brand Awareness, Branding, Brand Strategy, Program Standards, Brand Management, Document Management, Workflow Management, Layout Design, Visual Design, Operational Efficiency, Operational Risk
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Financial Statements, Financial Statement Analysis, Working Capital, Financial Analysis, Financial Acumen, Balance Sheet, Income Statement, Business Metrics, Fixed Asset, Return On Investment, Gross Profit, Trend Analysis, Cash Management, Cash Flows, Finance, Inventory Accounting, Operational Efficiency, Accounts Receivable, Asset Management
Mixed · Course · 1 - 4 Weeks