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.

Pontificia Universidad Católica de Chile
Skills you'll gain: Transportation Operations, Traffic Flow Optimization, Transportation Management, Systems Analysis, Policy Analysis, Operational Analysis, Operations Research, Program Evaluation, Analysis, Demand Planning, Network Analysis, Econometrics, Feasibility Studies, Cost Benefit Analysis, Mathematical Modeling, Economics, Policy, and Social Studies, Demand Generation, Social Sciences, Social Impact, Network Model
★ 4.7 (784) · Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Google Ads, Campaign Planning, Online Advertising, Search Engine Marketing, Campaign Management, Keyword Research, Marketing Budgets, Advertising Campaigns, Advertising, Pay Per Click Advertising, Marketing, Bidding, Digital Marketing, Paid media, Budget Management
★ 4.6 (725) · Beginner · Guided Project · Less Than 2 Hours

Interactive Brokers
Skills you'll gain: Financial Trading, International Finance, Financial Market, Securities Trading, Equities, Capital Markets, Securities (Finance), Market Data, Market Dynamics, Market Liquidity, Investments, Portfolio Risk, Profit and Loss (P&L) Management, Market Analysis, Order Management
★ 4.4 (243) · Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Technical Management, Decision Intelligence, AI Product Strategy, Transfer Learning, Artificial Intelligence and Machine Learning (AI/ML), Applied Machine Learning, Debugging, Deep Learning, Machine Learning, Model Evaluation, Test Data
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Personalized Campaigns, Inside Sales, Prompt Engineering Tools, Sales Process, Sales Strategy, Email Automation, AI Personalization, Sales Management, HubSpot CRM, Sales, Sales Prospecting, ChatGPT, Driving engagement, Anthropic Claude, Customer Relationship Management (CRM) Software, Customer Communications Management, Customer Engagement, Data-Driven Decision-Making, Automation, Analytics
Intermediate · Course · 1 - 4 Weeks

Universidades Anáhuac
Skills you'll gain: Predictive Modeling, Model Evaluation, Data Cleansing, Time Series Analysis and Forecasting, Database Management, Artificial Neural Networks, SQL, Predictive Analytics, Databases, Model Training, Keras (Neural Network Library), Deep Learning, Applied Machine Learning, Data Quality, Tensorflow, Statistical Modeling, Data Modeling, Data Visualization Software, Forecasting, Convolutional Neural Networks
★ 3 (8) · Intermediate · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Customer Retention, HubSpot CRM, Brand Awareness, Surveys, Survey Creation, Marketing Analytics, Google Analytics, Customer Analysis, Customer Service, Customer Relationship Management (CRM) Software, Customer Insights, Brand Loyalty, Customer Relationship Management, Customer Data Management, A/B Testing, AI Product Strategy, Target Audience, Data Analysis, Digital Marketing, Performance Measurement
★ 4.5 (130) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Earned Value Management, Project Controls, Project Planning, Project Performance, Project Management Software, Cost Management, Project Portfolio Management, Budget Management, Performance Reporting, Expense Management, Process Improvement and Optimization, Report Writing, Administration, System Configuration, Dependency Analysis, Data Visualization, User Accounts, Data Import/Export, Database Administration
★ 4.7 (116) · Beginner · Specialization · 3 - 6 Months

University of California, Irvine
Skills you'll gain: Education Software and Technology, Data Management, Learning Management Systems, Virtual Environment, Test Tools, Authentications, Technology Strategies, Test Planning
★ 4.7 (506) · Mixed · Course · 1 - 3 Months

28DIGITAL
Skills you'll gain: Real-Time Operating Systems, Embedded Software, Embedded Systems, Internet Of Things, Operating Systems, System Programming, Application Development, Wireless Networks, Communication Systems, Hardware Architecture, OS Process Management, Network Protocols, C (Programming Language), Simulations, Computer Hardware, Network Performance Management, Memory Management
★ 4.1 (628) · Intermediate · Course · 1 - 4 Weeks

Peking University
Skills you'll gain: Microarchitecture, Computer Architecture, Computer Systems, Hardware Architecture, Computer Hardware, Computer Engineering, Data Storage, Data Storage Technologies, System Software, Display Devices, Systems Architecture, Computational Logic, Peripheral Devices, Memory Management, System Programming
★ 4.8 (483) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Mobile Development, Mobile Development Tools, iOS Development, Other Mobile Programming Languages, Flutter (Software), Integrated Development Environments, Development Environment, Apple iOS, Android Studio, Computer Programming Tools, Application Development, Swift Programming, Test Tools, React Native, Apple Xcode, Application Frameworks, Web Applications, Cross Platform Development, Software Testing, Cloud Hosting
★ 4.7 (218) · Beginner · Course · 1 - 4 Weeks