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 Geneva
Skills you'll gain: Data-oriented programming, Memory Management, Object Oriented Design, System Programming
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Predictive Modeling, Data Preprocessing, Django (Web Framework), Data Visualization, Plot (Graphics), Predictive Analytics, Statistical Visualization, Model Training, Model Evaluation, File I/O, Application Programming Interface (API), Programming Principles, Databases, Development Environment, Web Applications, Code Reusability, Data Management, Functional Design, Memory Management, Data Validation
Intermediate · Specialization · 3 - 6 Months

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

Fortinet, Inc.
Skills you'll gain: Network Support, Network Troubleshooting, Firewall, Network Monitoring, Technical Support and Services, Network Security, Virtual Private Networks (VPN), Lightweight Directory Access Protocols, System Monitoring, Authentications, Performance Tuning, Security Software, System Configuration, Cybersecurity, Memory Management, Malware Protection
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Java Programming, Object Oriented Programming (OOP), Object Oriented Design, Java, Code Reusability, Maintainability, Programming Principles, Computer Programming, Application Development, Android Development, Memory Management
Beginner · Course · 1 - 4 Weeks

Xi'an Jiaotong University
Skills you'll gain: Operating Systems, Computer Systems, Debugging, Microsoft Visual Studio, OS Process Management, Computer Hardware, C# (Programming Language), Computer Architecture, Object Oriented Programming (OOP), Programming Principles, Memory Management, Integrated Development Environments, Computational Logic, Computer Programming, System Design and Implementation
Mixed · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Hardware Architecture, Microarchitecture, Memory Management, Cloud Development, Computing Platforms
Intermediate · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Field-Programmable Gate Array (FPGA), Display Devices, Electronics, Electronic Systems, Hardware Design, Electronic Hardware, Electronic Components, Computational Logic, Embedded Systems, Embedded Software, Remote Access Systems, Control Systems, C (Programming Language), Color Theory, Memory Management
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: File I/O, Simulations, C (Programming Language), Computational Thinking, Automation, Algorithms, Data Structures, Programming Principles, Memory Management
Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Kubernetes, Application Deployment, Cloud-Native Computing, Cloud Deployment, IT Automation, Containerization, Scalability, Devops Tools, Configuration Management, DevOps, Application Lifecycle Management, System Configuration, Security Controls, Memory Management, Data Persistence
Intermediate · Course · 1 - 4 Weeks

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
Intermediate · Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Strategic Communication, Communication Planning, Target Audience, Campaign Planning, Corporate Communications, Stakeholder Communications, Public Relations, Marketing Communications, Advertising Campaigns, Media Strategy, Brand Strategy, Communication Strategies, Integrated Marketing Communications, Target Market, Media Planning, Promotional Strategies, Branding, Earned Media, Brand Management, Business Strategy
Beginner · Course · 1 - 4 Weeks