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.

Skills you'll gain: Penetration Testing, Security Testing, Hardening, Brute-force attacks, IT Automation, Scripting Languages, Business Logic, Cloud Security, Network Analysis, Programming Principles, API Testing, General Data Protection Regulation (GDPR), Cloud Computing, Wireless Networks, Data Persistence, Application Programming Interface (API), Data Security
Intermediate · Specialization · 1 - 3 Months

Indian Institute of Technology Guwahati
Skills you'll gain: SolidWorks (CAD), Computer-Aided Design, Computer Graphics, 3D Modeling, Manufacturing Processes, Mechanical Design, Manufacturing and Production, Robotics, Engineering Drawings, Machine Controls, Visualization (Computer Graphics), Assembly Drawing, Prototyping, Computer Graphic Techniques, Industrial Design, Product Engineering, Production Process, Graphics Software, Process Modeling, Process Development
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: SQL, PostgreSQL
Advanced · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Quantum computing, Public Key Cryptography Standards (PKCS), Cryptography, Data Structures, Cryptographic Protocols, Algorithms, Encryption, Theoretical Computer Science, Computer Science, Programming Principles, Mathematical Software, Advanced Mathematics
Build toward a degree
Advanced · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: R (Software), R Programming, Statistical Programming, Statistical Analysis, Statistical Methods, Debugging, File I/O, Data Analysis, Simulations, Programming Principles, Code Reusability, Data Import/Export, Data Processing, Data Structures, Data Manipulation, Computer Programming, Performance Tuning, Software Installation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Version Control, Restful API, Docker (Software), Containerization, Git (Version Control System), Development Environment, Flask (Web Framework), Application Programming Interface (API), Authentications, Application Deployment, Database Management, Database Development, JSON, Object-Relational Mapping, Operational Databases, API Testing, Python Programming, Object Oriented Programming (OOP), Data Structures
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Pandas (Python Package), Data Analysis, Data Manipulation, Data Integration, Data Wrangling, Python Programming, Data Transformation
Beginner · Guided Project · Less Than 2 Hours

SkillsBooster Academy
Skills you'll gain: Prompt Engineering, Vibe coding, AI Workflows, Generative AI Agents, Software Development Tools, Application Development, GitHub, Code Review, AI Personalization, Software Development, Generative AI, Artificial Intelligence, Web Development Tools, Web Development, Software Engineering, Responsible AI, Design Software, Front-End Web Development, Javascript, React.js
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Statistical Modeling, Statistical Machine Learning, Data Science, Statistical Methods, Classification And Regression Tree (CART), Statistical Analysis, Model Evaluation, Regression Analysis, Predictive Modeling, R Programming, Statistical Inference, Logistic Regression, Model Training, Machine Learning, Classification Algorithms, Supervised Learning, Unsupervised Learning, Machine Learning Algorithms
Build toward a degree
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Azure Active Directory, Cloud Infrastructure, Microsoft Azure, Virtual Machines, Infrastructure As A Service (IaaS), Virtualization and Virtual Machines, Role-Based Access Control (RBAC), Active Directory, IT Infrastructure, Infrastructure Security, Infrastructure Architecture, Virtual Networking, Multi-Factor Authentication, Network Infrastructure, Cloud Hosting, Cloud Storage, Virtualization, Data Storage Technologies, Identity and Access Management, Cloud Computing
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Systems Architecture, Software Architecture, Software Design, System Design and Implementation, System Programming, Systems Analysis, Embedded Systems, Requirements Analysis, Unix, Operating Systems, Verification And Validation, Real Time Data, Performance Tuning, Performance Testing, System Monitoring, Computer Vision, Image Analysis
Advanced · Course · 1 - 3 Months

Skills you'll gain: Restful API, Model View Controller, ASP.NET, OAuth, API Design, Web Development, Application Programming Interface (API), .NET Framework, Web Services, Authentications, Unit Testing, Back-End Web Development, C# (Programming Language), Web Applications, Object-Relational Mapping, Application Frameworks, API Testing, Authorization (Computing), Cloud Computing, Computer Programming
Beginner · Course · 1 - 4 Weeks