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.

Peking University
Skills you'll gain: Data Structures, Memory Management, Algorithms, Computer Programming, Database Management Systems, Theoretical Computer Science, Data Access, Performance Tuning, File Management
Mixed · Course · 1 - 3 Months

Skills you'll gain: Open Web Application Security Project (OWASP), Vulnerability Scanning, Proxy Servers, Security Testing, Penetration Testing, Vulnerability Assessments, Brute-force attacks, Test Tools, Web Scraping
Intermediate · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Memory Management, Performance Tuning, System Programming, Hardware Architecture, Program Development, Computer Architecture, Performance Testing, Computer Hardware, Algorithms
Intermediate · Course · 1 - 3 Months

Nanjing University
Skills you'll gain: Operating Systems, File Management, Computer Systems, File Systems, OS Process Management, System Software, Software Architecture, Software Systems, Memory Management, Software Design, System Design and Implementation, File I/O, Computer Hardware, Peripheral Devices, Algorithms, Human Computer Interaction
Mixed · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Memory Management, C (Programming Language), C and C++, Data Structures, Secure Coding, Application Security, System Programming, Programming Principles
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Microarchitecture, Memory Management, System Programming, Embedded Software, Hardware Architecture, System Software, Embedded Systems, Computer Architecture, Programming Principles, System Configuration, Debugging, Application Development
Intermediate · Course · 1 - 3 Months

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

Skills you'll gain: Linux Servers, Linux Administration, Unix, Linux Commands, Linux, Unix Commands, Command-Line Interface, OS Process Management, Operating System Administration, Unix Shell, Debugging, System Monitoring, DevOps, Memory Management, Resource Management
Intermediate · Guided Project · Less Than 2 Hours

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

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

Nanjing University
Skills you'll gain: Computer Systems, System Programming, Microarchitecture, Computer Architecture, Computational Logic, Secure Coding, System Software, C (Programming Language), Hardware Architecture, Operating Systems, Data Structures, Data Storage, Memory Management, Application Security, Program Development, File Systems
Mixed · Course · 1 - 3 Months

Princeton University
Skills you'll gain: Algorithms, Data Structures, Graph Theory, Java Programming, Computational Thinking, Computer Programming, Java, Memory Management, Simulations, API Design
Intermediate · Course · 3 - 6 Months