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: Mainframe Computing, Mainframe Technologies, z/OS, Virtualization, Virtualization and Virtual Machines, Virtual Machines, Hardware Architecture, Infrastructure Architecture, Computing Platforms, Computer Architecture, Enterprise Security, Computer Hardware, Cryptography, Transaction Processing, System Configuration, Authorization (Computing), Identity and Access Management, Memory Management
★ 4.7 (1.1K) · Beginner · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Internal Communications, Corporate Communications, Media Relations, Storytelling, Strategic Communication, Employee Engagement, Target Audience, Diversity Equity and Inclusion Initiatives, Earned Media, Public Relations, Crisis Management, Drive Engagement, Social Media Marketing, Social Media, Social Media Management, Business Communication, Telecommuting, Stakeholder Communications, Employee Retention, Diversity and Inclusion
★ 4.6 (170) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Embedded Software, Performance Tuning, System Programming, Software Development Tools, Embedded Systems, Memory Management, Microarchitecture, Software Development, Hardware Architecture, Debugging, Secure Coding, Build Tools, Application Security, Computer Architecture, System Configuration, Programming Principles, C (Programming Language), Digital Signal Processing, Application Development, C++ (Programming Language)
★ 4.7 (210) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: File I/O, Memory Management, Debugging, C++ (Programming Language), C and C++, Software Documentation, Development Testing, Code Reusability, Vibe coding, Programming Principles, API Design, Program Development, Pseudocode, Software Architecture, Software Design, Functional Design, Performance Tuning, Application Design, Technical Documentation, Generative AI
★ 4.4 (52) · Beginner · Professional Certificate · 3 - 6 Months

University of California San Diego
Skills you'll gain: Bioinformatics, Computational Thinking, Memory Management, Graph Theory, Python Programming
★ 4.6 (142) · Intermediate · Course · 1 - 3 Months

Peking University
Skills you'll gain: C and C++, Object Oriented Design, Object Oriented Programming (OOP), C (Programming Language), Programming Principles, Data Structures, Computer Programming, Algorithms, Maintainability, Memory Management
★ 4.9 (827) · Mixed · Course · 1 - 3 Months

Duke University
Skills you'll gain: C (Programming Language), Data Structures, C and C++, Programming Principles, Program Development, Algorithms, Memory Management, Computer Programming, Data Access
★ 4.3 (351) · Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Rust (Programming Language), Test Case, Memory Management, Software Testing, Data Structures, GitHub, Package and Software Management, Development Environment, System Programming
★ 4 (251) · Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Penetration Testing, Exploit development, Metasploit, Application Security, Security Testing, Cyber Security Assessment, Vulnerability Scanning, Brute-force attacks, Secure Coding, Exploitation techniques, Software Design Patterns, Vulnerability Assessments, Memory Management, Amazon Web Services, SQL, Amazon Elastic Compute Cloud, Operating Systems, Data Validation
★ 4 (279) · Intermediate · Course · 1 - 4 Weeks

Birla Institute of Technology & Science, Pilani
Skills you'll gain: C (Programming Language), Programming Principles, Computer Programming, Memory Management, Computational Thinking, Data Structures, Algorithms, File I/O, Operating Systems, File Systems, Program Development, Computational Logic, Computer Hardware
★ 4.5 (56) · Beginner · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Object Oriented Programming (OOP), Java Programming, Java, Object Oriented Design, Computer Programming, Memory Management
★ 4.7 (319) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Programmable Logic Controllers, Automation Engineering, Machine Controls, Computer Hardware, Electrical Wiring, Computational Logic, Control Systems, Automation, Simulation and Simulation Software, TCP/IP, Data Storage, Communication Systems, Applied Mathematics, Memory Management
★ 4.7 (34) · Beginner · Course · 1 - 3 Months