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.

Association of International Certified Professional Accountants
Skills you'll gain: Blockchain, FinTech, Emerging Technologies, Specialized Accounting, Legal Technology, Digital Assets, Cryptography, Cryptographic Protocols, Technology Solutions, Transaction Processing, Supply Chain Management, Information Privacy, Scalability
★ 4.6 (80) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Financial Forecasting, Model Deployment, Forecasting, Financial Data, Decision Intelligence, Responsible AI, Generative AI, AI Integrations, Financial Management, Market Intelligence, Data-Driven Decision-Making, General Finance, Financial Planning, Market Research, Artificial Intelligence, Market Analysis, Data Quality
★ 4.2 (18) · Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: MarTech, Marketing, Digital Marketing Tools, Marketing Channel, Digital Transformation, Product Development, Marketing Strategies, Digital Marketing, Customer Advocacy, Promotional Strategies, New Product Development, Consumer Behaviour, Market Dynamics, Customer Engagement, Online Advertising, E-Commerce, Innovation
★ 4.8 (72) · Beginner · Course · 1 - 4 Weeks

Anthropic
Skills you'll gain: Model Context Protocol, Server Side, Event-Driven Programming, Application Deployment
★ 5 (7) · Mixed · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Command-Line Interface, Linux Commands, Linux, Embedded Systems, Linux Servers, Computer Engineering, File Systems, Unix, Operating Systems, C (Programming Language), File Management, Memory Management, Computer Programming Tools, Computer Programming, Open Source Technology, OS Process Management
★ 4.7 (35) · Beginner · Course · 1 - 3 Months

CVS Health
Skills you'll gain: Cashiering, Transaction Processing, Retail Sales, Retail Store Operations, Team Oriented, Customer Inquiries, Customer Service, Data Entry, Cash Handling, Customer Relationship Building, Point of Sale, E-Commerce, Customer Data Management, Accident Reporting, Payment Systems, Cross-Functional Collaboration, Payment Processing and Collection, Record Keeping, Time Management, Social Media
★ 4.8 (37) · Beginner · Course · 1 - 3 Months

Nanjing University
Skills you'll gain: Memory Management, Computer Systems, C (Programming Language), Programming Principles, System Programming, Computer Programming, Computational Logic, System Software, Computer Architecture, Microarchitecture, Operating Systems, Hardware Architecture, Data Structures, Data Storage, Secure Coding
★ 4.7 (59) · Mixed · Course · 1 - 3 Months

Scrimba
Skills you'll gain: SQL, Relational Databases, Database Design, Database Management, Database Application, Query Languages, Databases, Data Manipulation, Database Management Systems
★ 4.5 (31) · Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: HubSpot CRM, Team Building, Customer Relationship Management (CRM) Software, Team Management, Customer Relationship Management, Email Automation, Business Reporting, Marketing Automation, Email Marketing, Sales Development, Customer Service
★ 4.3 (27) · Beginner · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Google Workspace, Gmail, Technical Support and Services, Control Panels, Technical Support, Email Security, Issue Tracking, Technical Communication, Systems Administration, Data Access, Cloud Storage, Security Controls, File Management
★ 4.6 (27) · Beginner · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Digital pedagogy, Technical Communication, Digital Transformation, Cloud Computing, Computer Science, Hypertext Markup Language (HTML), Cloud Storage, File Transfer Protocol (FTP), Data Analysis, Data Science, Amazon Web Services, SQL
★ 4.1 (7) · Beginner · Course · 1 - 3 Months
Imperial College London
Skills you'll gain: Logo Design, Android (Operating System), Computer Graphics, Virtual Reality, Visualization (Computer Graphics), 3D Assets, Android Development, Augmented and Virtual Reality (AR/VR), Android Studio, Computer Graphic Techniques
★ 4.5 (45) · Intermediate · Course · 1 - 4 Weeks