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.

Scrimba
Skills you'll gain: Responsive Web Design, LinkedIn, Cascading Style Sheets (CSS), Front-End Web Development, HTML and CSS, Professional Development, Web Presence, Web Development, Javascript, GitHub, Data Structures, Programming Principles
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Flask (Web Framework), Web Applications, Package and Software Management, Web Frameworks, Application Frameworks, Debugging, Program Development, Development Environment, Restful API, Python Programming
★ 3.8 (6) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Test Driven Development (TDD), Debugging, Software Testing, Performance Testing, Unit Testing, Test Engineering, System Testing, Test Script Development, Test Tools, Test Case, Test Automation, Testability, Integration Testing, Performance Stress Testing, .NET Framework, Performance Tuning, Software Development Tools
★ 4.7 (28) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Webpack, Object Oriented Programming (OOP), Object Oriented Design, Full-Stack Web Development, JSON, Web Development Tools, Javascript, Event-Driven Programming, HTML and CSS, Application Programming Interface (API), Application Deployment, Web Applications, Web Development, Kanban Principles, Cascading Style Sheets (CSS), Code Reusability, Hypertext Markup Language (HTML), Browser Compatibility, Programming Principles, Data Persistence
Intermediate · Specialization · 3 - 6 Months
University of Michigan
Skills you'll gain: SQL, Relational Databases, Datamaps, Database Management, Query Languages, Databases, Database Design, Database Systems, Data Visualization, Object Oriented Programming (OOP), Data Processing, Data Modeling, Data Manipulation, Geospatial Mapping, Data Storage, Python Programming
★ 4.7 (6) · Mixed · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Classification Algorithms, Java Programming, Data Preprocessing, Machine Learning Software, Model Training, Model Deployment, Model Evaluation, Decision Tree Learning, Logistic Regression
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Simulations, Education Software and Technology, Programming Principles, Computer Programming Tools, Computational Thinking, No-Code Development, Data Sharing, Agentic systems, Program Development, Theoretical Computer Science, Computer Programming, UI Components, Pedagogy
Advanced · Guided Project · Less Than 2 Hours

Skills you'll gain: Role-Based Access Control (RBAC), Postman API Platform, Authentications, Spring Framework, API Testing, Authorization (Computing), Restful API, Identity and Access Management, Secure Coding, Java Programming, Application Design, Spring Boot, User Accounts, Application Programming Interface (API), API Design, Web Applications
Intermediate · Course · 1 - 4 Weeks

Pragmatic AI Labs
Skills you'll gain: MLOps (Machine Learning Operations), Databricks, Apache Spark, Model Evaluation, Hugging Face, Data Architecture, Recurrent Neural Networks (RNNs), LLM Application, Data Science, Data Mining, Mathematical Modeling, Scala Programming, Continuous Monitoring, Rust (Programming Language), Lean Six Sigma, Statistical Inference, Artificial Intelligence, Functional Testing, Exploratory Data Analysis, Programming Principles
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Cloud API, Application Programming Interface (API), Postman API Platform, API Design, API Testing, Java Programming, Java, Mobile Development, Apache Maven, Application Development, Data Access, Web Development, Eclipse (Software), Software Design
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Apache Spark, Scala Programming, Apache Hadoop, Apache Maven, Big Data, Apache, Real Time Data, Data Processing, Scalability, Data Structures, Live Streaming, Data Transformation, Object Oriented Programming (OOP), Systems Integration
★ 5 (9) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cryptography, Data Security, Encryption, Authorization (Computing), General Data Protection Regulation (GDPR), Cryptographic Protocols, Public Key Infrastructure, Authentications, Key Management, Identity and Access Management, Web Development, Application Security, Web Applications, Data Integrity, Multi-Factor Authentication, Security Strategy
★ 4.6 (7) · Beginner · Course · 1 - 4 Weeks