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: Memory Management
Advanced · Course · 1 - 3 Months

Alex Genadinik
Skills you'll gain: Press Releases, Earned Media, Media Relations, Copywriting, Media and Communications, Public Relations, Media Strategy, Marketing and Public Relations, Promotional Strategies, Product Promotion, Brand Awareness, Case Studies, Professional Networking
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Rust (Programming Language), File I/O, Memory Management, Data Structures, Code Reusability, System Programming, Secure Coding
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cryptography, Encryption, Android Development, Key Management, Exploit development, Android (Operating System), Secure Coding, Mobile Security, Data Security, Application Security, Data Loss Prevention, Network Security, Exploitation techniques, Memory Management, File Systems
Mixed · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Cloud-Based Integration, Cloud API, Application Programming Interface (API), API Gateway, Google Cloud Platform, Virtual Machines, Proxy Servers, Virtual Networking
Beginner · Project · Less Than 2 Hours

Pearson
Skills you'll gain: C and C++, C++ (Programming Language), Code Reusability, Memory Management
Intermediate · Course · 1 - 4 Weeks

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

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

Skills you'll gain: Angular, Frontend Performance, Dataflow, Memory Management
Intermediate · Course · 1 - 3 Months

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: Object Oriented Programming (OOP), Object Oriented Design, C# (Programming Language), .NET Framework, Development Environment, Computer Programming, Programming Principles, Microsoft Development Tools, Microsoft Visual Studio, Data Structures, Computer Science, Algorithms, Application Frameworks, Software Development Tools, Memory Management, Debugging, Software Installation, Data Storage
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Apache Spark, Performance Tuning, PySpark, Service Level, Resource Allocation, Process Optimization, Performance Analysis, Memory Management, Job Analysis, System Configuration
Intermediate · Course · 1 - 4 Weeks