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: Network Monitoring, Cryptographic Protocols, Distributed Denial-Of-Service (DDoS) Attacks, Routing Protocols, Virtual Private Networks (VPN), Security Controls, OSI Models, Dynamic Host Configuration Protocol (DHCP), Proxy Servers
★ 4.8 (17) · 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

Skills you'll gain: Linux Servers, Linux Administration, Unix, Linux Commands, Linux, Unix Commands, Command-Line Interface, OS Process Management, Operating System Administration, Unix Shell, Debugging, System Monitoring, DevOps, Memory Management, Resource Management
★ 4.7 (23) · Intermediate · Guided Project · Less Than 2 Hours

Arizona State University
Skills you'll gain: Problem Solving, Critical Thinking and Problem Solving, Creativity, Creative Problem-Solving, Human Factors, Decision Making, Human Learning, Human Computer Interaction, Mental Concentration, Human Machine Interfaces, Learning Theory, Usability, Memory Management, Human Centered Design
★ 4.9 (11) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Rust (Programming Language), Data Structures, Memory Management, Code Reusability, Package and Software Management, Blockchain, Web Development, Development Environment, Performance Testing, Programming Principles, System Programming, Algorithms, Integrated Development Environments, Software Testing, Software Installation
★ 3.7 (26) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Rust (Programming Language), Development Environment, Programming Principles, Data Structures, Memory Management, Integrated Development Environments, System Programming, Software Installation
★ 3.7 (20) · Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Kubernetes, Application Deployment, Cloud-Native Computing, Scalability, Release Management, Data Persistence, DevOps, Containerization, Devops Tools, Application Lifecycle Management, Configuration Management, Performance Tuning, Security Controls, Data Storage, Memory Management
★ 4.1 (20) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Hardware Architecture, Data Storage, Computer Systems, Memory Management
Beginner · Course · 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 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

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Algorithms, Programming Principles, Data Store, Data Management, Computational Thinking, Memory Management, C and C++, Software Design, Problem Solving, Complex Problem Solving
Mixed · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: AI Workflows, Agentic Workflows, LangGraph, AI Orchestration, Agentic systems, Generative AI Agents, LangChain, LLM Application, AI Integrations, Software Architecture, Systems Architecture, Software Design, Data Validation, Data Persistence, Context Management, Scalability, Systems Integration, Memory Management
Intermediate · Course · 1 - 4 Weeks