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.

University of Colorado Boulder
Skills you'll gain: Software Configuration Management, Embedded Software, Embedded Systems, Configuration Management, Git (Version Control System), Version Control, Memory Management, Build Tools, Software Development Tools, C (Programming Language), Development Environment, Program Development, Code Review, Software Technical Review, Software Design, Debugging, Make.com
★ 4.5 (656) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: System Programming, Linux Administration, Embedded Software, Linux, System Software, Linux Commands, Debugging, Linux Servers, Operating Systems, OS Process Management, Microarchitecture, Scalability, Memory Management, C (Programming Language), Hardware Architecture, Performance Tuning, Software Design, Data Integrity, Data Sharing
Advanced · Course · 1 - 4 Weeks
LearnQuest
Skills you'll gain: Java Programming, Spring Framework, Java, File I/O, Object Oriented Programming (OOP), Object Oriented Design, Java Platform Enterprise Edition (J2EE), Programming Principles, Software Design, Computer Programming, Application Frameworks, Data Structures, Software Installation, Virtual Machines, Code Reusability, Web Development, Package and Software Management, Memory Management, Computational Logic, Development Environment
★ 4.6 (2.8K) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Java Programming, Java, Software Architecture, Memory Management, Code Reusability, Software Design, Maintainability, Application Design, Programming Principles, Secure Coding, User Interface (UI) Design, Javascript
Beginner · Course · 3 - 6 Months

University of California, Santa Cruz
Skills you'll gain: C++ (Programming Language), Go (Programming Language), File I/O, Data Structures, Object Oriented Programming (OOP), Object Oriented Design, Software Design Patterns, Debugging, Computer Programming, Programming Principles, Unit Testing, Algorithms, C (Programming Language), Program Development, Software Design, Graph Theory, Software Testing, Code Reusability, Memory Management, C and C++
★ 4.4 (2.5K) · Intermediate · Specialization · 3 - 6 Months
Skills you'll gain: Debugging, Technical Communication, Network Troubleshooting, Performance Tuning, Problem Management, Technical Documentation, System Monitoring, Capacity Management, Incident Management, Memory Management, Continuous Integration, Continuous Monitoring
★ 4.6 (3.1K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: System Programming, Memory Management, Performance Tuning, OS Process Management, Operating Systems, Linux Administration, Linux, Real-Time Operating Systems, System Software, Operating System Administration, Linux Servers, Linux Commands, C (Programming Language), System Configuration, Hardware Architecture, Systems Analysis, Resource Management, Debugging
Intermediate · Course · 1 - 3 Months

KodeKloud
Skills you'll gain: Go (Programming Language), Computer Programming Tools, Software Development Tools, Integrated Development Environments, Programming Principles, Development Environment, Computer Programming, System Programming, Command-Line Interface, Computational Logic, Data Integrity, Software Installation, Memory Management
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Debugging, File I/O, Memory Management, Programming Principles, Maintainability, Software Testing, Program Development, C (Programming Language), Algorithms, Test Planning, Simulations, Test Case, System Programming, Computer Programming, Data Structures, Software Development, C and C++, Software Engineering, Problem Solving, Software Design
★ 4.6 (7.5K) · Beginner · Specialization · 3 - 6 Months

KodeKloud
Skills you'll gain: Memory Management, Back-End Web Development, Go (Programming Language), Code Reusability, Software Design Patterns, Computer Programming Tools, Data Store, Software Architecture, Data-oriented programming, Systems Design, Data Structures, System Programming, Programming Principles, Object Oriented Programming (OOP), Cloud Development, Computer Programming, Logical Reasoning, Programmable Logic Controllers, Application Development, Open Source Technology
Beginner · Specialization · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: C++ (Programming Language), Data Structures, Object Oriented Programming (OOP), Object Oriented Design, Graph Theory, Development Environment, Data Storage, Engineering Software, Unstructured Data, Computer Programming, Software Engineering, Algorithms, Memory Management, Computer Programming Tools, Debugging, Program Development, Database Systems, Theoretical Computer Science
★ 4.7 (3.5K) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Java Programming, Java, Performance Tuning, Memory Management, Web Servers, Web Applications, Server Side, Computer Networking, TCP/IP, OS Process Management, Context Management, Software Development, Encryption, Network Protocols, Scalability, Maintainability
Intermediate · Course · 1 - 4 Weeks