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: Penetration Testing, Network Security, Network Monitoring, Exploitation techniques, Cybersecurity, Vulnerability Scanning, Cryptographic Protocols, Remote Access Systems, Network Protocols, Encryption, General Networking, Command-Line Interface, Network Analysis, Proxy Servers
★ 4.6 (15) · Intermediate · Course · 1 - 3 Months

Simplilearn
Skills you'll gain: Data Structures, C (Programming Language), C and C++, Programming Principles, Data Management, Memory Management, Algorithms, Computer Programming, File I/O, Program Development, File Management, Other Programming Languages, Development Environment, Computational Logic
★ 4.6 (30) · 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

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
★ 2.6 (10) · Intermediate · Specialization · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: LLM Application, Tool Calling, Large Language Modeling, Generative AI Agents, AI Workflows, Context Management, Memory Management, Prompt Engineering, Agentic systems, Data Persistence, System Design and Implementation
★ 4.6 (18) · Intermediate · Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Embedded Software, Embedded Systems, Performance Tuning, Hardware Design, Systems Architecture, Systems Design, Hardware Architecture, Software Architecture, System Software, System Design and Implementation, Reliability, System Programming, Real Time Data, Performance Testing, Failure Analysis, System Requirements, Memory Management, Data Integrity, Linux
★ 4.4 (20) · Intermediate · Course · 1 - 4 Weeks

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

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

University of California, Irvine
Skills you'll gain: Corporate Communications, Media Relations, Strategic Communication, Target Audience, Earned Media, Public Relations, Social Media Marketing, Social Media Management, Social Media, Stakeholder Communications, Public Affairs, Marketing Communications, Branding, Social Media Campaigns, Brand Strategy, Brand Management, Communication Strategies, Stakeholder Management, Internal Communications, Corporate Sustainability
★ 4.6 (36) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: API Gateway, Kubernetes, Cloud API, Google Cloud Platform, Hybrid Cloud Computing, Application Programming Interface (API), Cloud Platforms, Cloud-Native Computing, API Testing, Istio, Application Deployment, Software Installation, Proxy Servers, Verification And Validation, Configuration Management
★ 4.6 (44) · Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Performance Tuning, Web Development, Web Applications, Software Architecture, Other Programming Languages, Network Security, Memory Management
★ 2.8 (14) · Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: File I/O, Simulations, C (Programming Language), Computational Thinking, Automation, Algorithms, Theoretical Computer Science, Memory Management, Data Persistence
★ 4.4 (36) · Beginner · Course · 1 - 4 Weeks