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: 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 (29) · Beginner · Course · 1 - 3 Months

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

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Operating Systems, Operating System Administration, Memory Management, OS Process Management, System Software, System Programming, Command-Line Interface, Linux Administration, File Systems, System Monitoring, Performance Tuning, Package and Software Management, Systems Architecture, File Management, Algorithms, Cloud Platforms, User Accounts, Security Controls, Data Sharing
★ 4.9 (14) · Intermediate · Course · 1 - 3 Months

Peking University
Skills you'll gain: Memory Management, Data Structures, Algorithms, Computer Science, Program Development, Performance Tuning
★ 4.3 (106) · 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
★ 4.3 (290) · Intermediate · Guided Project · Less Than 2 Hours

Nanjing University
Skills you'll gain: Operating Systems, File Systems, File Management, Computer Systems, Memory Management, System Software, OS Process Management, File I/O, Data Storage, Computer Hardware, Program Development, Peripheral Devices, System Design and Implementation, Algorithms
★ 4.5 (143) · Mixed · Course · 1 - 3 Months

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

Skills you'll gain: Computer Hardware, Hardware Architecture, Data Storage, Computer Systems, Data Storage Technologies, System Configuration, Microarchitecture, Computer Architecture, Peripheral Devices, Memory Management
★ 4.7 (95) · Beginner · Course · 1 - 4 Weeks

Princeton University
Skills you'll gain: Data Structures, Algorithms, Java Programming, Java, Graph Theory, Computer Programming, Computational Thinking, Spatial Data Analysis, Theoretical Computer Science, Memory Management, Simulations, Performance Tuning
★ 4.8 (84) · Intermediate · Course · 3 - 6 Months

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

Skills you'll gain: Remote Access Systems, TCP/IP, System Programming, Network Protocols, Performance Tuning, Program Development, Memory Management, Hardware Architecture, Computer Hardware
★ 4.6 (53) · Intermediate · Course · 1 - 3 Months

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