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.

Packt
Skills you'll gain: Nginx, Web Servers, Apache, Ansible, Server Administration, Proxy Servers, Linux Servers, Application Servers, Servers, Docker (Software), System Configuration, PHP (Scripting Language), Containerization, Django (Web Framework), Software Installation, Configuration Management, Performance Tuning, Scalability
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: LangGraph, AI Workflows, AI Orchestration, LLM Application, LangChain, CrewAI, Large Language Modeling, Agentic Workflows, Agentic systems, Application Deployment, Artificial Intelligence and Machine Learning (AI/ML), Context Management, Vector Databases, Memory Management, Performance Testing, Data Validation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Kubernetes, Cloud-Native Computing, Database Application, Cloud Deployment, Google Cloud Platform, Cloud Applications, PostgreSQL, Containerization, Data Access, User Accounts, Proxy Servers, User Provisioning, Cloud Computing
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: vSphere DRS & HA, Storage vMotion, Virtual Machines, VMware ESX Servers, vCenter Server Management, vCenter Server, Virtualization and Virtual Machines, Memory Management, Capacity Management, Patch Management, Configuration Management, System Monitoring
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Network Troubleshooting, General Networking, OSI Models, Network Protocols, Network Support, Networking Hardware, TCP/IP, Microsoft Windows, Network Routers, Network Switches, Network Administration, Local Area Networks, Computer Networking, Technical Support and Services, Network Model, Computer Hardware, System Configuration, Command-Line Interface, iOS Development, Memory Management
Beginner · Course · 1 - 4 Weeks

Pragmatic AI Labs
Skills you'll gain: Rust (Programming Language), Containerization, Other Programming Languages, Go (Programming Language), Application Deployment, Docker (Software), Embedded Systems, C and C++, Cross Platform Development, Performance Tuning, Interoperability, Memory Management, Command-Line Interface, Software Engineering, Data Engineering
Beginner · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), Java Programming, File I/O, Object Oriented Design, Java, Development Environment, Computer Programming, Programming Principles, Data Persistence, Integrated Development Environments, Memory Management, Debugging, File Management, Application Development, Data Structures
Beginner · Course · 1 - 3 Months

Skills you'll gain: Test Tools, Memory Management
Advanced · Course · 1 - 3 Months

Skills you'll gain: Data Structures, Object Oriented Programming (OOP), Software Development, Memory Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Facebook, Persona Development, Customer Analysis, Target Audience, Social Media, Social Media Marketing, Target Market, Business Marketing, Social Media Content, Social Media Management, Marketing Strategies, Web Presence, Content Creation, Earned Media, Drive Engagement, Business Planning
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Redis, Data Persistence, Performance Tuning, Transaction Processing, Server Administration, Servers, Scalability, Scripting Languages, Software Architecture, Memory Management, Scripting, Configuration Management, Data Structures, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Performance Tuning, Oracle Databases, Operational Databases, Data Maintenance, SQL, Linux Administration, System Monitoring, Operating System Administration, Linux, Database Management, Linux Commands, File I/O, Data Migration, Database Architecture and Administration, Performance Testing, Data Storage Technologies, Scenario Testing, Data Storage, Memory Management
Advanced · Course · 1 - 3 Months