C programming courses can help you learn syntax, data structures, algorithms, and memory management. You can build skills in debugging, optimizing code, and implementing efficient algorithms. Many courses introduce tools like GCC for compiling code, GDB for debugging, and libraries such as the Standard Template Library (STL) to enhance functionality. You'll also explore concepts like pointers, file handling, and dynamic memory allocation, which are crucial for developing robust applications.

LearnQuest
Skills you'll gain: Java Programming, Java, Object Oriented Programming (OOP), Computer Programming, Object Oriented Design, Development Environment, Data Structures
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Application Security, Java, Model View Controller, Development Environment, Web Applications, Application Programming Interface (API), Apache Maven, Authorization (Computing), Authentications, Role-Based Access Control (RBAC)
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: TypeScript, Programming Principles, Web Development Tools, Javascript, Web Language
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Computational Thinking, Algorithms, Graph Theory, Data Structures, Computer Programming, C++ (Programming Language), Object Oriented Programming (OOP)
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Cryptography, Encryption, Application Development, Security Engineering, Application Security, C++ (Programming Language)
Intermediate · Guided Project · Less Than 2 Hours

EC-Council
Skills you'll gain: Cryptography, Encryption, Systems Development Life Cycle, Human Factors (Security), Security Awareness, Cybersecurity, Cyber Attacks, Cyber Security Policies, Threat Detection, ISO/IEC 27001, Security Controls, Computer Security, Network Security, Risk Management Framework, Information Systems, General Data Protection Regulation (GDPR)
Beginner · Course · 1 - 3 Months

University of Minnesota
Skills you'll gain: Time Series Analysis and Forecasting, Model Evaluation, Predictive Modeling, Data Preprocessing, Regression Analysis, Microsoft Excel, Forecasting, Excel Formulas, Pivot Tables And Charts, Data Transformation, Statistical Modeling, Trend Analysis, Predictive Analytics, Statistical Methods
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Pseudocode, Computational Thinking, Debugging, Algorithms, Programming Principles, Front-End Web Development, Javascript, Computer Programming, Data Structures, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, Microsoft Azure, Development Testing, Application Deployment, LLM Application, Multimodal Prompts, Artificial Intelligence, Test Case, Agentic systems, Retrieval-Augmented Generation, Application Programming Interface (API), Natural Language Processing, Technical Documentation
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Cloud-Native Computing, Software Engineering, Distributed Computing, Cloud Storage, Extract, Transform, Load, Google Cloud Platform, Big Data, Cloud Computing, Serverless Computing, Cloud Technologies, Data Lakes, Data Pipelines, Amazon Web Services, Command-Line Interface, Python Programming, Data Governance, NumPy, Rust (Programming Language)
Intermediate · Course · 1 - 4 Weeks

Universiteit Leiden
Skills you'll gain: Predictive Analytics, Predictive Modeling, Model Evaluation, R Programming, Preventative Care, Health Informatics, Statistical Modeling, Sample Size Determination, Statistical Inference, Regression Analysis, Precision Medicine, Supervised Learning, Data Preprocessing
Intermediate · Course · 1 - 3 Months

New York University
Skills you'll gain: Supervised Learning, Dimensionality Reduction, Unsupervised Learning, Applied Machine Learning, Decision Tree Learning, Machine Learning, Financial Trading, Reinforcement Learning, Scikit Learn (Machine Learning Library), Financial Services, Regression Analysis, Correlation Analysis, Exploratory Data Analysis, Portfolio Management, Python Programming, Artificial Neural Networks
Intermediate · Course · 1 - 4 Weeks