Free courses can help you learn coding languages like Python and JavaScript, data analysis techniques, and web development fundamentals. You can build skills in problem-solving, algorithm design, and creating interactive websites. Many courses introduce tools such as Git for version control, SQL for database management, and various frameworks that streamline web development, allowing you to apply your skills in practical projects.

Skills you'll gain: C and C++, File I/O, C++ (Programming Language), Object Oriented Design, Object Oriented Programming (OOP), Debugging, Data Structures, C (Programming Language), Code Reusability, Development Environment, Program Development, Programming Principles, Computer Programming, Memory Management, Computer Programming Tools, Data Persistence, Integrated Development Environments, Algorithms, Functional Design, Data Management
★ 4.6 (22) · Intermediate · Specialization · 1 - 3 Months

University of Michigan
Skills you'll gain: Memory Management, C++ (Programming Language), C (Programming Language), Object Oriented Programming (OOP), Object Oriented Design, Data Structures, Programming Principles, Software Design, Python Programming, Java, Algorithms, Performance Tuning
★ 4.5 (14) · Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: File I/O, Memory Management, C and C++, C++ (Programming Language), Code Reusability, Vibe coding, API Design, Software Architecture, Software Design, Functional Design, Maintainability, Data Import/Export, Data Structures, AI literacy, AI Integrations, Data Validation, Performance Tuning, Secure Coding, Build Tools, Package and Software Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Rust (Programming Language), Development Environment, Programming Principles, Data Structures, Memory Management, Integrated Development Environments, System Programming, Software Installation
★ 3.7 (20) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Embedded Software, Real-Time Operating Systems, Embedded Systems, Software Architecture, Code Reusability, Pseudocode, Microarchitecture, Memory Management, Systems Architecture, Hardware Architecture, Computer Hardware, Electronic Hardware, System Programming, Computer Architecture, Software Design, Cross Platform Development, Systems Design, Software Design Patterns, Internet Of Things, Hardware Troubleshooting
★ 2.8 (11) · Intermediate · Specialization · 1 - 3 Months

Fortinet, Inc.
Skills you'll gain: Network Support, Network Troubleshooting, Firewall, Network Monitoring, Technical Support and Services, Network Security, Virtual Private Networks (VPN), Lightweight Directory Access Protocols, System Monitoring, Authentications, Performance Tuning, Security Software, System Configuration, Cybersecurity, Memory Management, Malware Protection
★ 4.8 (46) · Intermediate · Course · 1 - 3 Months

International Institute of Information Technology, Hyderabad
Skills you'll gain: Microarchitecture, Computer Architecture, Hardware Architecture, Systems Architecture, Computer Systems, Computer Hardware, Performance Tuning, Memory Management
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Intrusion Detection and Prevention, Security Controls, Malware Protection, Security Engineering, Network Security, Security Testing, Threat Detection, Firewall, Digital Forensics, Anomaly Detection, Code Review, Network Routing, Proxy Servers, Linux, Internet Of Things
★ 4.5 (174) · Beginner · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Memory Management, C (Programming Language), Embedded Systems, Software Visualization, Computer Engineering, Embedded Software, Computer Programming, Programming Principles, Data Structures, Linux
★ 4.7 (67) · Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Microsoft Copilot, Scalability, Software Architecture, Performance Tuning, Query Languages, Systems Architecture, Database Management, Distributed Computing, .NET Framework, Maintainability, Back-End Web Development, Memory Management
★ 4.6 (16) · Beginner · Course · 1 - 4 Weeks

University of Geneva
Skills you'll gain: Data-oriented programming, Memory Management, Object Oriented Design, System Programming, Microarchitecture, Performance Testing, Hardware Architecture, Data Access
★ 4.4 (7) · Intermediate · Course · 1 - 3 Months

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Scala Programming, Programming Principles, Theoretical Computer Science, Other Programming Languages, Computer Programming, Computational Logic, Functional Design, Data Structures, Memory Management, System Implementation, Data Mapping
★ 4.7 (18) · Mixed · Course · 1 - 3 Months