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: Unix Shell, Unix Commands, z/OS, Shell Script, Unix, File Systems, Job Control Language (JCL), Operating Systems, Command-Line Interface, OS Process Management, File Management, Mainframe Computing, Debugging, Identity and Access Management
★ 4.9 (13) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Lean Six Sigma, Process Mapping, Six Sigma Methodology, Process Improvement and Optimization, Quality Improvement, Root Cause Analysis, Process Improvement, Strategic Leadership, Lean Methodologies, Performance Improvement, Process Development, Business Leadership, Organizational Change, Change Management, Culture Transformation, Descriptive Statistics, Continuous Improvement Process, Process Analysis, Performance Measurement, Strategic Prioritization
★ 4.8 (26) · Mixed · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Markov Model, Estimation, Mathematical Modeling, Correlation Analysis, Matlab, Linear Algebra, Numerical Analysis, Predictive Analytics, Applied Mathematics, Time Series Analysis and Forecasting, Probability Distribution, Statistical Inference, Probability & Statistics
★ 5 (6) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Query Languages, Software Installation, Performance Tuning, Distributed Computing, Scripting, Scalability, Data Modeling, Application Programming Interface (API), Cloud Deployment
★ 3.6 (14) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Embedded Systems, Embedded Software, Internet Of Things, Vibrations, Control Systems, Machine Controls, Civil Engineering, Electronic Systems, Electronics Engineering, Structural Engineering, Energy and Utilities, Electronics, Maintenance, Repair, and Facility Services, Automation, Integrated Development Environments, Environmental Monitoring, Traffic Flow Optimization, System Monitoring, Continuous Monitoring, Communication Systems
★ 4 (9) · Intermediate · Course · 1 - 3 Months

Akamai Technologies, Inc.
Skills you'll gain: HTML and CSS, Responsive Web Design, Hypertext Markup Language (HTML), Web Design and Development, Cascading Style Sheets (CSS), Web Development, Web Applications, Web Design, Front-End Web Development, Animations, Web Content, Embeddings
★ 4.7 (27) · Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Java Programming, Java, OS Process Management, Memory Management, Data Sharing
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, Application Development, Development Environment, Python Programming
★ 3.8 (6) · Beginner · Guided Project · Less Than 2 Hours

Xi'an Jiaotong University
Skills you'll gain: ASP.NET, .NET Framework, Web Development, Database Application, Object Oriented Programming (OOP), Web Applications, Javascript, HTML and CSS, Web Design, Data Access, Web Servers, Data Validation
★ 4.7 (6) · Mixed · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Restful API, Web Services, Java Platform Enterprise Edition (J2EE), Software Design, Java, Application Programming Interface (API), API Design, Web Applications, Object Oriented Design, Software Design Patterns, Software Architecture, Command-Line Interface
★ 4.3 (16) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: LangChain, Generative AI Agents, Development Environment, Agentic systems, Artificial Intelligence, Agentic Workflows, Database Development, Tool Calling, LLM Application, Database Management, SQL, Database Application, OpenAI API
Intermediate · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Programming Principles, Python Programming, Data Cleansing, Automation, Maintainability, Computational Thinking, Computer Programming, Computational Logic, Application Programming Interface (API)
★ 4.4 (9) · Intermediate · Course · 1 - 4 Weeks