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.
University of California, Santa Cruz
Skills you'll gain: Go (Programming Language), File I/O, Data Structures, Programming Principles, Object Oriented Design, Object Oriented Programming (OOP), Debugging, Computer Programming, Unit Testing, C (Programming Language), Program Development, Computer Science, Software Testing, Algorithms, Code Reusability, Graph Theory, C and C++, Computational Logic, Memory Management
★ 4.5 (7.3K) · Intermediate · Specialization · 3 - 6 Months

Fractal Analytics
Skills you'll gain: Human Centered Design, Problem Solving, Critical Thinking and Problem Solving, Critical Thinking, User Centered Design, Solution Design, Analytical Skills, Data Science, Complex Problem Solving, Decision Making
★ 4.6 (165) · Beginner · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: AI Orchestration, Agentic Workflows, OpenAI API, Generative AI Agents, LLM Application, Prompt Patterns, AI Workflows, Prompt Engineering, Agentic systems, AI Security, Business Logic, File I/O, Transaction Processing, Software Architecture, Memory Management
★ 4.7 (140) · Beginner · Course · 1 - 3 Months

Karlsruhe Institute of Technology
Skills you'll gain: Large Language Modeling, Natural Language Processing, Artificial Neural Networks, Deep Learning, Statistical Machine Learning, Model Evaluation, Artificial Intelligence and Machine Learning (AI/ML), Model Training, Recurrent Neural Networks (RNNs), Language Interpretation, Translation, and Studies, Machine Learning Methods, Statistical Modeling, Multilingualism, Vocabulary
★ 4.5 (185) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Scientific Visualization, Data Preprocessing, Regression Analysis, Scikit Learn (Machine Learning Library), Feature Engineering, Data Cleansing, Predictive Modeling, Data Analysis, Statistical Modeling, Model Training, Statistical Methods, Supervised Learning, Model Evaluation, Machine Learning, Python Programming
★ 4.6 (68) · Beginner · Guided Project · Less Than 2 Hours
Skills you'll gain: Google Ads, Search Engine Optimization, Digital Marketing, Keyword Research, Digital Advertising, Target Audience, Search Engine Marketing, Online Advertising, Persona Development, Customer Analysis, Conversion Funnel Analysis, Content Optimization, Marketing Strategy and Techniques, Advertising Campaigns, Marketing Strategies, Customer Engagement
★ 4.8 (7.9K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Adobe Express, Content Scheduling, Marketing Strategies, Personalized Campaigns, Data-Driven Marketing, Promotional Strategies, Marketing Planning, Social Media Content, Digital Marketing Campaigns, Responsible AI, Digital Marketing, Cross-Channel Marketing, Logo Design, Generative AI, Campaign Management, Social Media Marketing, Graphic Design, Content Strategy, Advertising, Market Research
★ 4.7 (3.3K) · Beginner · Professional Certificate · 3 - 6 Months

University of California, Davis
Skills you'll gain: ArcGIS, GIS Software, Geographic Information Systems, Geospatial Information and Technology, Data Sharing, Geospatial Mapping, Spatial Analysis, Metadata Management, Data Mapping, Data Quality, Data Visualization, Data Visualization Software, Data Analysis
★ 4.8 (5.9K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Digital Forensics, Cyber Threat Hunting, Incident Response, Cyber Threat Intelligence, Penetration Testing, Computer Security Incident Management, Threat Detection, MITRE ATT&CK Framework, Cryptography, Security Testing, Incident Management, Application Security, Encryption, Cybersecurity, Security Management, Vulnerability Scanning, Cyber Security Assessment, Brute-force attacks, Vulnerability Assessments, Security Awareness
★ 4.7 (4.6K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Social Media Management, Social Media Content, Social Media, Social Media Marketing, Instagram, Social Media Strategy, Content Creation, Content Performance Analysis, Content Scheduling, Social Media Analytics, Drive Engagement, Generative AI Agents, Web Presence, Brand Strategy, Content Marketing, Content Management, Branding, Performance Analysis, Content Strategy, Customer Engagement
★ 4.8 (6K) · Beginner · Course · 1 - 3 Months

Edureka
Skills you'll gain: Data Transformation, Dashboard Creation, Business Intelligence Software, Data Integration
★ 4.5 (109) · Advanced · Course · 1 - 4 Weeks

Imperial College London
Skills you'll gain: Tensorflow, Keras (Neural Network Library), Model Evaluation, Deep Learning, Image Analysis, Model Training, Convolutional Neural Networks, Transfer Learning, Computer Programming, Model Optimization, Applied Machine Learning, Supervised Learning, Computer Vision, Artificial Neural Networks, Data Persistence
★ 4.9 (582) · Intermediate · Course · 1 - 3 Months